--- _id: '13338' abstract: - lang: eng text: This work discusses the additive manufacturing of an axicon lens using cyclic olefin copolymer (TOPAS), and its characterization between 100 GHz and 300 GHz. The proposed manufacturing process followed by dip-coating post-processing provides an improved surface finish. Additionally, the terahertz output of the lens remains intact over the entire frequency range. author: - first_name: Abhijeet Narendra full_name: Shrotri, Abhijeet Narendra id: '74090' last_name: Shrotri orcid: 0000-0003-2116-156X - first_name: Suraj full_name: Joshi, Suraj last_name: Joshi - first_name: Lea full_name: Vogel, Lea id: '77129' last_name: Vogel - first_name: Annamarija full_name: Starsaja, Annamarija last_name: Starsaja - first_name: Oliver full_name: Stübbe, Oliver id: '51864' last_name: Stübbe orcid: 0000-0001-7293-6893 - first_name: Sascha full_name: Preu, Sascha last_name: Preu citation: ama: Shrotri AN, Joshi S, Vogel L, Starsaja A, Stübbe O, Preu S. Terahertz Axicon Lenses. IEEE; 2026:2. doi:10.1109/irmmw-thz61557.2025.11319870 apa: Shrotri, A. N., Joshi, S., Vogel, L., Starsaja, A., Stübbe, O., & Preu, S. (2026). Terahertz Axicon Lenses. In 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (p. 2). IEEE. https://doi.org/10.1109/irmmw-thz61557.2025.11319870 bjps: 'Shrotri AN et al. (2026) Terahertz Axicon Lenses. Piscataway, NJ: IEEE.' chicago: 'Shrotri, Abhijeet Narendra, Suraj Joshi, Lea Vogel, Annamarija Starsaja, Oliver Stübbe, and Sascha Preu. Terahertz Axicon Lenses. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE, 2026. https://doi.org/10.1109/irmmw-thz61557.2025.11319870.' chicago-de: 'Shrotri, Abhijeet Narendra, Suraj Joshi, Lea Vogel, Annamarija Starsaja, Oliver Stübbe und Sascha Preu. 2026. Terahertz Axicon Lenses. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE. doi:10.1109/irmmw-thz61557.2025.11319870, .' din1505-2-1: 'Shrotri, Abhijeet Narendra ; Joshi, Suraj ; Vogel, Lea ; Starsaja, Annamarija ; Stübbe, Oliver ; Preu, Sascha: Terahertz Axicon Lenses. Piscataway, NJ : IEEE, 2026' havard: A.N. Shrotri, S. Joshi, L. Vogel, A. Starsaja, O. Stübbe, S. Preu, Terahertz Axicon Lenses, IEEE, Piscataway, NJ, 2026. ieee: 'A. N. Shrotri, S. Joshi, L. Vogel, A. Starsaja, O. Stübbe, and S. Preu, Terahertz Axicon Lenses. Piscataway, NJ: IEEE, 2026, p. 2. doi: 10.1109/irmmw-thz61557.2025.11319870.' mla: Shrotri, Abhijeet Narendra, et al. “Terahertz Axicon Lenses.” 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), IEEE, 2026, p. 2, https://doi.org/10.1109/irmmw-thz61557.2025.11319870. short: A.N. Shrotri, S. Joshi, L. Vogel, A. Starsaja, O. Stübbe, S. Preu, Terahertz Axicon Lenses, IEEE, Piscataway, NJ, 2026. ufg: 'Shrotri, Abhijeet Narendra u. a.: Terahertz Axicon Lenses, Piscataway, NJ 2026.' van: 'Shrotri AN, Joshi S, Vogel L, Starsaja A, Stübbe O, Preu S. Terahertz Axicon Lenses. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE; 2026.' conference: end_date: 2025-08-22 location: ' Helsinki, Finland ' name: 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) start_date: 2025-08-17 date_created: 2026-01-16T14:48:22Z date_updated: 2026-02-10T12:42:43Z department: - _id: DEP5020 - _id: DEP6020 doi: 10.1109/irmmw-thz61557.2025.11319870 keyword: - Manufacturing processes - Surface waves - Three-dimensional printing - Surface finishing - Surface treatment - Lenses language: - iso: eng page: '2' place: Piscataway, NJ publication: 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) publication_status: published publisher: IEEE status: public title: Terahertz Axicon Lenses type: conference_editor_article user_id: '83781' year: '2026' ... --- _id: '13339' abstract: - lang: eng text: Additive manufacturing (AM) paves the way for low-cost production of optical and terahertz (THz) components such as waveguides, fibers, and lenses [1]–[3]. This work addresses the fabrication and THz characterization of a 3D-printed waveguide composed of cyclic olefin copolymer (TOPAS). Such a waveguide is a convenient and inexpensive tool in the development of THz interconnects, and in applications such as biomedical sensing. author: - first_name: Suraj full_name: Joshi, Suraj last_name: Joshi - first_name: Annamarija full_name: Starsaja, Annamarija last_name: Starsaja - first_name: Abhijeet Narendra full_name: Shrotri, Abhijeet Narendra id: '74090' last_name: Shrotri orcid: 0000-0003-2116-156X - first_name: Oliver full_name: Stübbe, Oliver id: '51864' last_name: Stübbe orcid: 0000-0001-7293-6893 - first_name: Sascha full_name: Preu, Sascha last_name: Preu citation: ama: Joshi S, Starsaja A, Shrotri AN, Stübbe O, Preu S. Additively-Manufactured Terahertz Waveguides. IEEE; 2026. doi:10.1109/irmmw-thz61557.2025.11320095 apa: Joshi, S., Starsaja, A., Shrotri, A. N., Stübbe, O., & Preu, S. (2026). Additively-Manufactured Terahertz Waveguides. In 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), Helsinki, Finland . IEEE. https://doi.org/10.1109/irmmw-thz61557.2025.11320095 bjps: 'Joshi S et al. (2026) Additively-Manufactured Terahertz Waveguides. Piscataway, NJ: IEEE.' chicago: 'Joshi, Suraj, Annamarija Starsaja, Abhijeet Narendra Shrotri, Oliver Stübbe, and Sascha Preu. Additively-Manufactured Terahertz Waveguides. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE, 2026. https://doi.org/10.1109/irmmw-thz61557.2025.11320095.' chicago-de: 'Joshi, Suraj, Annamarija Starsaja, Abhijeet Narendra Shrotri, Oliver Stübbe und Sascha Preu. 2026. Additively-Manufactured Terahertz Waveguides. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE. doi:10.1109/irmmw-thz61557.2025.11320095, .' din1505-2-1: 'Joshi, Suraj ; Starsaja, Annamarija ; Shrotri, Abhijeet Narendra ; Stübbe, Oliver ; Preu, Sascha: Additively-Manufactured Terahertz Waveguides. Piscataway, NJ : IEEE, 2026' havard: S. Joshi, A. Starsaja, A.N. Shrotri, O. Stübbe, S. Preu, Additively-Manufactured Terahertz Waveguides, IEEE, Piscataway, NJ, 2026. ieee: 'S. Joshi, A. Starsaja, A. N. Shrotri, O. Stübbe, and S. Preu, Additively-Manufactured Terahertz Waveguides. Piscataway, NJ: IEEE, 2026. doi: 10.1109/irmmw-thz61557.2025.11320095.' mla: Joshi, Suraj, et al. “Additively-Manufactured Terahertz Waveguides.” 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), IEEE, 2026, https://doi.org/10.1109/irmmw-thz61557.2025.11320095. short: S. Joshi, A. Starsaja, A.N. Shrotri, O. Stübbe, S. Preu, Additively-Manufactured Terahertz Waveguides, IEEE, Piscataway, NJ, 2026. ufg: 'Joshi, Suraj u. a.: Additively-Manufactured Terahertz Waveguides, Piscataway, NJ 2026.' van: 'Joshi S, Starsaja A, Shrotri AN, Stübbe O, Preu S. Additively-Manufactured Terahertz Waveguides. 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE; 2026.' conference: end_date: 2025-08-22 location: 'Helsinki, Finland ' name: 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) start_date: 2025-08-17 date_created: 2026-01-16T14:49:35Z date_updated: 2026-01-21T07:34:28Z department: - _id: DEP5020 - _id: DEP6020 doi: 10.1109/irmmw-thz61557.2025.11320095 keyword: - Optical fibers - Optical fiber sensors - Optical interconnections - Biomedical optical imaging - Optical device fabrication - Production - Optical waveguide components - Three-dimensional printing - Optical waveguides - Lenses language: - iso: eng place: Piscataway, NJ publication: 2025 50th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) publication_status: published publisher: IEEE status: public title: Additively-Manufactured Terahertz Waveguides type: conference_editor_article user_id: '83781' year: '2026' ... --- _id: '11977' abstract: - lang: eng text: Additive manufacturing of lenses offers quick prototyping and characterization. This paper explains the additive manufacturing and characterization of axicon lenses using TOPAS material for Terahertz sensing applications. The beam patterns of additively manufactured axicon lens prototypes are characterized around 0.3 THz with silicon-based THz-camera to evaluate the depth of focus. author: - first_name: Abhijeet Narendra full_name: Shrotri, Abhijeet Narendra id: '74090' last_name: Shrotri orcid: 0000-0003-2116-156X - first_name: Benedikt full_name: Krause, Benedikt last_name: Krause - first_name: Oliver full_name: Stübbe, Oliver id: '51864' last_name: Stübbe orcid: 0000-0001-7293-6893 - first_name: Ullrich full_name: Pfeiffer, Ullrich last_name: Pfeiffer - first_name: Sascha full_name: Preu, Sascha last_name: Preu citation: ama: Shrotri AN, Krause B, Stübbe O, Pfeiffer U, Preu S. Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera. Vol 2024. IEEE; 2024. doi:10.1109/irmmw-thz60956.2024.10697740 apa: Shrotri, A. N., Krause, B., Stübbe, O., Pfeiffer, U., & Preu, S. (2024). Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera. In 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) (Vol. 2024). IEEE. https://doi.org/10.1109/irmmw-thz60956.2024.10697740 bjps: 'Shrotri AN et al. (2024) Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera. Piscataway, NJ: IEEE.' chicago: 'Shrotri, Abhijeet Narendra, Benedikt Krause, Oliver Stübbe, Ullrich Pfeiffer, and Sascha Preu. Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Vol. 2024. International Conference on Infrared, Millimeter, and Terahertz Waves. Piscataway, NJ: IEEE, 2024. https://doi.org/10.1109/irmmw-thz60956.2024.10697740.' chicago-de: 'Shrotri, Abhijeet Narendra, Benedikt Krause, Oliver Stübbe, Ullrich Pfeiffer und Sascha Preu. 2024. Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Bd. 2024. International Conference on Infrared, Millimeter, and Terahertz Waves. Piscataway, NJ: IEEE. doi:10.1109/irmmw-thz60956.2024.10697740, .' din1505-2-1: 'Shrotri, Abhijeet Narendra ; Krause, Benedikt ; Stübbe, Oliver ; Pfeiffer, Ullrich ; Preu, Sascha: Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera, International Conference on Infrared, Millimeter, and Terahertz Waves. Bd. 2024. Piscataway, NJ : IEEE, 2024' havard: A.N. Shrotri, B. Krause, O. Stübbe, U. Pfeiffer, S. Preu, Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera, IEEE, Piscataway, NJ, 2024. ieee: 'A. N. Shrotri, B. Krause, O. Stübbe, U. Pfeiffer, and S. Preu, Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera, vol. 2024. Piscataway, NJ: IEEE, 2024. doi: 10.1109/irmmw-thz60956.2024.10697740.' mla: Shrotri, Abhijeet Narendra, et al. “Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera.” 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), vol. 2024, IEEE, 2024, https://doi.org/10.1109/irmmw-thz60956.2024.10697740. short: A.N. Shrotri, B. Krause, O. Stübbe, U. Pfeiffer, S. Preu, Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera, IEEE, Piscataway, NJ, 2024. ufg: 'Shrotri, Abhijeet Narendra u. a.: Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera, Bd. 2024, Piscataway, NJ 2024 (International Conference on Infrared, Millimeter, and Terahertz Waves).' van: 'Shrotri AN, Krause B, Stübbe O, Pfeiffer U, Preu S. Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera. 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz). Piscataway, NJ: IEEE; 2024. (International Conference on Infrared, Millimeter, and Terahertz Waves; vol. 2024).' conference: end_date: 2024-09-06 location: 'Perth, Australia ' name: 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) start_date: 2024-09-01 date_created: 2024-10-08T08:11:34Z date_updated: 2024-10-08T11:47:36Z department: - _id: DEP5020 - _id: DEP6020 doi: 10.1109/irmmw-thz60956.2024.10697740 intvolume: ' 2024' keyword: - Additives - Prototypes - Three-dimensional printing - Sensors - Lenses language: - iso: eng place: Piscataway, NJ publication: 2024 49th International Conference on Infrared, Millimeter, and Terahertz Waves (IRMMW-THz) publication_identifier: eissn: - 2162-2035 publication_status: published publisher: IEEE series_title: International Conference on Infrared, Millimeter, and Terahertz Waves status: public title: Evaluation of Additively Manufactured Axicon Lenses Using a THz-Camera type: conference_editor_article user_id: '83781' volume: 2024 year: '2024' ... --- _id: '13796' abstract: - lang: eng text: Machine learning systems are increasingly integrated into security-relevant applications, making their vul-nerability to adversarial examples a potential risk. Banknote authentication is one such use case that ensures trustworthiness in financial transactions. In addition to traditional security features, the printing technique of banknotes itself is leveraged for authentication. The Intaglio printing produces particularly fine print structures that can be analyzed and differentiated using spatial frequency analysis, e.g. the wavelet packet transform. Ap-propriate feature engineering in the wavelet packet tree allows the extraction of features enabling fast and reliable authentication. This paper presents an approach that generates adversarial examples by manipulating the feature space, classifying counterfeit banknote specimens as genuine. To this end, the variance of the wavelet coefficient distribution of individual detail nodes in the wavelet packet tree is increased. The approach leads to minimally perturbed images that are visually indistinguishable from the original input. The majority of pixels remain unchanged, i.e. 77% for the lower-quality and 86% for the high-quality counterfeit. Furthermore, the limitations of this approach are discussed, shedding light on its applicability and potential challenges. author: - first_name: Julian full_name: Knaup, Julian id: '79206' last_name: Knaup - first_name: Christoph-Alexander full_name: Holst, Christoph-Alexander id: '64782' last_name: Holst - first_name: Volker full_name: Lohweg, Volker id: '1804' last_name: Lohweg orcid: 0000-0002-3325-7887 citation: ama: 'Knaup J, Holst CA, Lohweg V. Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. (Institute of Electrical and Electronics Engineers, ed.). IEEE; 2024:560-565. doi:10.1109/rtsi61910.2024.10761182' apa: 'Knaup, J., Holst, C.-A., & Lohweg, V. (2024). Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. In Institute of Electrical and Electronics Engineers (Ed.), 8th International Forum on Research and Technologies for Society and Industry : IEEE RTSI 2024 - Research and Technologies for Society and Industry, International Forum (pp. 560–565). IEEE. https://doi.org/10.1109/rtsi61910.2024.10761182' bjps: 'Knaup J, Holst C-A and Lohweg V (2024) Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication, Institute of Electrical and Electronics Engineers (ed.). Piscataway, NJ: IEEE.' chicago: 'Knaup, Julian, Christoph-Alexander Holst, and Volker Lohweg. Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. Edited by Institute of Electrical and Electronics Engineers. 8th International Forum on Research and Technologies for Society and Industry : IEEE RTSI 2024 - Research and Technologies for Society and Industry, International Forum . Piscataway, NJ: IEEE, 2024. https://doi.org/10.1109/rtsi61910.2024.10761182.' chicago-de: 'Knaup, Julian, Christoph-Alexander Holst und Volker Lohweg. 2024. Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. Hg. von Institute of Electrical and Electronics Engineers. 8th International Forum on Research and Technologies for Society and Industry : IEEE RTSI 2024 - Research and Technologies for Society and Industry, International Forum . Piscataway, NJ: IEEE. doi:10.1109/rtsi61910.2024.10761182, .' din1505-2-1: 'Knaup, Julian ; Holst, Christoph-Alexander ; Lohweg, Volker ; Institute of Electrical and Electronics Engineers (Hrsg.): Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. Piscataway, NJ : IEEE, 2024' havard: 'J. Knaup, C.-A. Holst, V. Lohweg, Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication, IEEE, Piscataway, NJ, 2024.' ieee: 'J. Knaup, C.-A. Holst, and V. Lohweg, Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. Piscataway, NJ: IEEE, 2024, pp. 560–565. doi: 10.1109/rtsi61910.2024.10761182.' mla: 'Knaup, Julian, et al. “Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication.” 8th International Forum on Research and Technologies for Society and Industry : IEEE RTSI 2024 - Research and Technologies for Society and Industry, International Forum , edited by Institute of Electrical and Electronics Engineers, IEEE, 2024, pp. 560–65, https://doi.org/10.1109/rtsi61910.2024.10761182.' short: 'J. Knaup, C.-A. Holst, V. Lohweg, Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication, IEEE, Piscataway, NJ, 2024.' ufg: 'Knaup, Julian/Holst, Christoph-Alexander/Lohweg, Volker: Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication, hg. von Institute of Electrical and Electronics Engineers, Piscataway, NJ 2024.' van: 'Knaup J, Holst CA, Lohweg V. Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication. Institute of Electrical and Electronics Engineers, editor. 8th International Forum on Research and Technologies for Society and Industry : IEEE RTSI 2024 - Research and Technologies for Society and Industry, International Forum . Piscataway, NJ: IEEE; 2024.' conference: end_date: 2024-09-20 location: Milano, Italy name: 8th Forum on Research and Technologies for Society and Industry Innovation (RTSI) start_date: 2024-09-18 corporate_editor: - Institute of Electrical and Electronics Engineers date_created: 2026-06-03T07:47:55Z date_updated: 2026-06-03T08:46:01Z department: - _id: DEP5023 doi: 10.1109/rtsi61910.2024.10761182 keyword: - Printing - Technological innovation - Wavelet domain - Perturbation methods - Authentication - Feature extraction - Wavelet analysis - Wavelet packets - Security - Wavelet coefficients language: - iso: eng page: 560-565 place: Piscataway, NJ publication: '8th International Forum on Research and Technologies for Society and Industry : IEEE RTSI 2024 - Research and Technologies for Society and Industry, International Forum ' publication_identifier: eisbn: - 979-8-3503-6213-8 isbn: - 979-8-3503-6214-5 publication_status: published publisher: IEEE status: public title: 'Hidden in Plain Sight: Adversarial Attack on Wavelet-Based Banknote Authentication' type: conference_editor_article user_id: '83781' year: '2024' ... --- _id: '7670' abstract: - lang: eng text: Additive manufacturing (AM) and rapid prototyping process (RPP) have revolutionized the production of 3D objects in the last few decades. RPP has considerably increased the rate of production and the possibility of manufacturing prototypes in the fields of electrical, optical, and mechanical engineering. The manufacturing of optical prototypes including spherical, aspheric, and special kinds of lenses and lens arrays has reformed the fabrication of optical components. In this paper, specifically designed lens array prototypes for application in visible light communication (VLC) are introduced. These lens array prototypes are manufactured using the stereolithography apparatus (SLA) process. These lens arrays are designed to achieve optimal transmission of the light beam for VLC systems. One of the prototypes from the lens arrays contains primarily four spherical lenses and one thicker convex lens and the other contains one fresnel lens as a substitute for thicker convex lens. These lens arrays are further post-processed to achieve the required transparency. These lens array prototypes are tested using laser and LEDs. The ON-OFF keying modulated light beam was transmitted through the lens array at the sender side and focused on the photo-receiver using another lens array at the receiver side which is 200 cm apart. After evaluating these lens prototypes, it can be concluded that with appropriate post-processing and high-resolution stereolithography based manufacturing, a low data rate VLC link can be formed. author: - first_name: Abhijeet Narendra full_name: Shrotri, Abhijeet Narendra id: '74090' last_name: Shrotri orcid: 0000-0003-2116-156X - first_name: Micha full_name: Beyer, Micha id: '71403' last_name: Beyer - first_name: Daniel Johann full_name: Schneider, Daniel Johann id: '71057' last_name: Schneider - first_name: Oliver full_name: Stübbe, Oliver id: '51864' last_name: Stübbe orcid: https://orcid.org/0000-0001-7293-6893 citation: ama: Shrotri AN, Beyer M, Schneider DJ, Stübbe O. Manufacturing of Lens Array Prototypes Containing Spherical and Fresnel Lenses for Visible Light Communications Using Stereolithography Apparatus. Vol 11677. (Helvajian H, Gu B, Chen H, eds.). Society of Photo-Optical Instrumentation Engineers; 2021. doi:10.1117/12.2586907 apa: Shrotri, A. N., Beyer, M., Schneider, D. J., & Stübbe, O. (2021). Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus. In H. Helvajian, B. Gu, & H. Chen (Eds.), Laser 3D Manufacturing VIII (Vol. 11677). Society of Photo-Optical Instrumentation Engineers. https://doi.org/10.1117/12.2586907 bjps: 'Shrotri AN et al. (2021) Manufacturing of Lens Array Prototypes Containing Spherical and Fresnel Lenses for Visible Light Communications Using Stereolithography Apparatus, Helvajian H, Gu B and Chen H (eds). San Francisco: Society of Photo-Optical Instrumentation Engineers.' chicago: 'Shrotri, Abhijeet Narendra, Micha Beyer, Daniel Johann Schneider, and Oliver Stübbe. Manufacturing of Lens Array Prototypes Containing Spherical and Fresnel Lenses for Visible Light Communications Using Stereolithography Apparatus. Edited by Henry Helvajian, Bo Gu, and Hongqiang Chen. Laser 3D Manufacturing VIII. Vol. 11677. Proceedings of SPIE. San Francisco: Society of Photo-Optical Instrumentation Engineers, 2021. https://doi.org/10.1117/12.2586907.' chicago-de: 'Shrotri, Abhijeet Narendra, Micha Beyer, Daniel Johann Schneider und Oliver Stübbe. 2021. Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus. Hg. von Henry Helvajian, Bo Gu, und Hongqiang Chen. Laser 3D Manufacturing VIII. Bd. 11677. Proceedings of SPIE. San Francisco: Society of Photo-Optical Instrumentation Engineers. doi:10.1117/12.2586907, .' din1505-2-1: 'Shrotri, Abhijeet Narendra ; Beyer, Micha ; Schneider, Daniel Johann ; Stübbe, Oliver ; Helvajian, H. ; Gu, B. ; Chen, H. (Hrsg.): Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus, Proceedings of SPIE. Bd. 11677. San Francisco : Society of Photo-Optical Instrumentation Engineers, 2021' havard: A.N. Shrotri, M. Beyer, D.J. Schneider, O. Stübbe, Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus, Society of Photo-Optical Instrumentation Engineers, San Francisco, 2021. ieee: 'A. N. Shrotri, M. Beyer, D. J. Schneider, and O. Stübbe, Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus, vol. 11677. San Francisco: Society of Photo-Optical Instrumentation Engineers, 2021. doi: 10.1117/12.2586907.' mla: Shrotri, Abhijeet Narendra, et al. “Manufacturing of Lens Array Prototypes Containing Spherical and Fresnel Lenses for Visible Light Communications Using Stereolithography Apparatus.” Laser 3D Manufacturing VIII, edited by Henry Helvajian et al., vol. 11677, Society of Photo-Optical Instrumentation Engineers, 2021, https://doi.org/10.1117/12.2586907. short: A.N. Shrotri, M. Beyer, D.J. Schneider, O. Stübbe, Manufacturing of Lens Array Prototypes Containing Spherical and Fresnel Lenses for Visible Light Communications Using Stereolithography Apparatus, Society of Photo-Optical Instrumentation Engineers, San Francisco, 2021. ufg: 'Shrotri, Abhijeet Narendra u. a.: Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus, Bd. 11677, hg. von Helvajian, Henry/Gu, Bo/Chen, Hongqiang, San Francisco 2021 (Proceedings of SPIE).' van: 'Shrotri AN, Beyer M, Schneider DJ, Stübbe O. Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus. Helvajian H, Gu B, Chen H, editors. Laser 3D Manufacturing VIII. San Francisco: Society of Photo-Optical Instrumentation Engineers; 2021. (Proceedings of SPIE; vol. 11677).' conference: end_date: 2021-02-02 location: 'San Francisco ' name: SPIE Photonics West LASE Proc. SPIE 11677, Laser 3D Manufacturing VIII, 1167717 start_date: 2021-01-28 date_created: 2022-04-19T10:20:55Z date_updated: 2024-04-19T11:54:33Z department: - _id: DEP5020 - _id: DEP6020 - _id: DEP5000 doi: 10.1117/12.2586907 editor: - first_name: Henry full_name: Helvajian, Henry last_name: Helvajian - first_name: Bo full_name: Gu, Bo last_name: Gu - first_name: Hongqiang full_name: Chen, Hongqiang last_name: Chen intvolume: ' 11677' keyword: - Additive manufacturing - 3D printing - Stereolithography apparatus - Spherical lenses - Fresnel lenses - Visible light communication language: - iso: eng main_file_link: - url: https://doi.org/10.1117/12.2586907 place: San Francisco publication: Laser 3D Manufacturing VIII publication_identifier: eisbn: - 978-1-5106-4190-7 eissn: - 1996-756X isbn: - 978-1-5106-4189-1 issn: - 0277-786X publication_status: published publisher: Society of Photo-Optical Instrumentation Engineers series_title: Proceedings of SPIE status: public title: Manufacturing of lens array prototypes containing spherical and fresnel lenses for visible light communications using stereolithography apparatus type: conference_editor_article user_id: '51864' volume: 11677 year: '2021' ... --- _id: '7676' author: - first_name: Abhijeet Narendra full_name: Shrotri, Abhijeet Narendra id: '74090' last_name: Shrotri orcid: 0000-0003-2116-156X - first_name: Micha full_name: Beyer, Micha id: '71403' last_name: Beyer - first_name: Oliver full_name: Stübbe, Oliver id: '51864' last_name: Stübbe orcid: https://orcid.org/0000-0001-7293-6893 citation: ama: Shrotri AN, Beyer M, Stübbe O. Manufacturing and Analyzing of Cost-Efficient Fresnel Lenses Using Stereolithography. Vol 11349. (von Freymann G, Herkommer AM, Flury M, eds.). SPIE; 2020. doi:10.1117/12.2555367 apa: 'Shrotri, A. N., Beyer, M., & Stübbe, O. (2020). Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography. In G. von Freymann, A. M. Herkommer, & M. Flury (Eds.), 3D Printed Optics and Additive Photonic Manufacturing II : 6-10 April 2020, online only, France (Vol. 11349). SPIE. https://doi.org/10.1117/12.2555367' bjps: 'Shrotri AN, Beyer M and Stübbe O (2020) Manufacturing and Analyzing of Cost-Efficient Fresnel Lenses Using Stereolithography, von Freymann G, Herkommer AM and Flury M (eds). Bellingham, Washington, USA: SPIE.' chicago: 'Shrotri, Abhijeet Narendra, Micha Beyer, and Oliver Stübbe. Manufacturing and Analyzing of Cost-Efficient Fresnel Lenses Using Stereolithography. Edited by Georg von Freymann, Alois M. Herkommer, and Manuel Flury. 3D Printed Optics and Additive Photonic Manufacturing II : 6-10 April 2020, Online Only, France . Vol. 11349. Proceedings of SPIE. Bellingham, Washington, USA: SPIE, 2020. https://doi.org/10.1117/12.2555367.' chicago-de: 'Shrotri, Abhijeet Narendra, Micha Beyer und Oliver Stübbe. 2020. Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography. Hg. von Georg von Freymann, Alois M. Herkommer, und Manuel Flury. 3D Printed Optics and Additive Photonic Manufacturing II : 6-10 April 2020, online only, France . Bd. 11349. Proceedings of SPIE. Bellingham, Washington, USA: SPIE. doi:10.1117/12.2555367, .' din1505-2-1: 'Shrotri, Abhijeet Narendra ; Beyer, Micha ; Stübbe, Oliver ; von Freymann, G. ; Herkommer, A. M. ; Flury, M. (Hrsg.): Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography, Proceedings of SPIE. Bd. 11349. Bellingham, Washington, USA : SPIE, 2020' havard: A.N. Shrotri, M. Beyer, O. Stübbe, Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography, SPIE, Bellingham, Washington, USA, 2020. ieee: 'A. N. Shrotri, M. Beyer, and O. Stübbe, Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography, vol. 11349. Bellingham, Washington, USA: SPIE, 2020. doi: 10.1117/12.2555367.' mla: 'Shrotri, Abhijeet Narendra, et al. “Manufacturing and Analyzing of Cost-Efficient Fresnel Lenses Using Stereolithography.” 3D Printed Optics and Additive Photonic Manufacturing II : 6-10 April 2020, Online Only, France , edited by Georg von Freymann et al., vol. 11349, SPIE, 2020, https://doi.org/10.1117/12.2555367.' short: A.N. Shrotri, M. Beyer, O. Stübbe, Manufacturing and Analyzing of Cost-Efficient Fresnel Lenses Using Stereolithography, SPIE, Bellingham, Washington, USA, 2020. ufg: 'Shrotri, Abhijeet Narendra/Beyer, Micha/Stübbe, Oliver: Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography, Bd. 11349, hg. von Freymann, Georg von/Herkommer, Alois M./Flury, Manuel, Bellingham, Washington, USA 2020 ( Proceedings of SPIE).' van: 'Shrotri AN, Beyer M, Stübbe O. Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography. von Freymann G, Herkommer AM, Flury M, editors. 3D Printed Optics and Additive Photonic Manufacturing II : 6-10 April 2020, online only, France . Bellingham, Washington, USA: SPIE; 2020. ( Proceedings of SPIE; vol. 11349).' conference: end_date: 2020-04-10 location: Strasbourg (online) name: 3D Printed Optics and Additive Photonic Manufacturing ; SPIE Photonics Europe - Digital Forum start_date: 2020-04-06 date_created: 2022-04-19T10:46:32Z date_updated: 2024-04-19T12:02:02Z department: - _id: DEP5020 - _id: DEP6020 - _id: DEP5000 doi: 10.1117/12.2555367 editor: - first_name: Georg full_name: von Freymann, Georg last_name: von Freymann - first_name: Alois M. full_name: Herkommer, Alois M. last_name: Herkommer - first_name: Manuel full_name: Flury, Manuel last_name: Flury intvolume: ' 11349' keyword: - Fresnel lenses - Stereolithography apparatus - 3D printing - Photo-polymerization language: - iso: eng place: Bellingham, Washington, USA publication: '3D Printed Optics and Additive Photonic Manufacturing II : 6-10 April 2020, online only, France ' publication_identifier: eisbn: - ' 978-1-5106-3471-8 ' eissn: - 1996-756X isbn: - 978-1-5106-3470-1 issn: - 0277-786X publication_status: published publisher: SPIE series_title: ' Proceedings of SPIE' status: public title: Manufacturing and analyzing of cost-efficient fresnel lenses using stereolithography type: conference_editor_article user_id: '51864' volume: 11349 year: '2020' ... --- _id: '7679' author: - first_name: Abhijeet Narendra full_name: Shrotri, Abhijeet Narendra id: '74090' last_name: Shrotri orcid: 0000-0003-2116-156X - first_name: Micha full_name: Beyer, Micha id: '71403' last_name: Beyer - first_name: Oliver full_name: Stübbe, Oliver id: '51864' last_name: Stübbe orcid: https://orcid.org/0000-0001-7293-6893 citation: ama: Shrotri AN, Beyer M, Stübbe O. Evaluation of Stereolithograghy Processes for the Production of Lens Prototypes. Vol 2019, 01. (Padoano E, Villmer FJ, eds.). Technische Hochschule Ostwestfalen-Lippe; 2019:227-240. apa: 'Shrotri, A. N., Beyer, M., & Stübbe, O. (2019). Evaluation of stereolithograghy processes for the production of lens prototypes. In E. Padoano & F.-J. Villmer (Eds.),   Production engineering and management : proceedings 9th international conference, October 03 and 04, 2019, Trieste, Italy (Vols. 2019, 01, pp. 227–240). Technische Hochschule Ostwestfalen-Lippe.' bjps: 'Shrotri AN, Beyer M and Stübbe O (2019) Evaluation of Stereolithograghy Processes for the Production of Lens Prototypes, Padoano E and Villmer F-J (eds). Lemgo: Technische Hochschule Ostwestfalen-Lippe.' chicago: 'Shrotri, Abhijeet Narendra, Micha Beyer, and Oliver Stübbe. Evaluation of Stereolithograghy Processes for the Production of Lens Prototypes. Edited by Elio Padoano and Franz-Josef Villmer.   Production Engineering and Management : Proceedings 9th International Conference, October 03 and 04, 2019, Trieste, Italy. Vol. 2019, 01. Publication Series in Direct Digital Manufacturing . Lemgo: Technische Hochschule Ostwestfalen-Lippe, 2019.' chicago-de: 'Shrotri, Abhijeet Narendra, Micha Beyer und Oliver Stübbe. 2019. Evaluation of stereolithograghy processes for the production of lens prototypes. Hg. von Elio Padoano und Franz-Josef Villmer.   Production engineering and management : proceedings 9th international conference, October 03 and 04, 2019, Trieste, Italy. Bd. 2019, 01. Publication series in direct digital manufacturing . Lemgo: Technische Hochschule Ostwestfalen-Lippe.' din1505-2-1: 'Shrotri, Abhijeet Narendra ; Beyer, Micha ; Stübbe, Oliver ; Padoano, E. ; Villmer, F.-J. (Hrsg.): Evaluation of stereolithograghy processes for the production of lens prototypes, Publication series in direct digital manufacturing . Bd. 2019, 01. Lemgo : Technische Hochschule Ostwestfalen-Lippe, 2019' havard: A.N. Shrotri, M. Beyer, O. Stübbe, Evaluation of stereolithograghy processes for the production of lens prototypes, Technische Hochschule Ostwestfalen-Lippe, Lemgo, 2019. ieee: 'A. N. Shrotri, M. Beyer, and O. Stübbe, Evaluation of stereolithograghy processes for the production of lens prototypes, vol. 2019, 01. Lemgo: Technische Hochschule Ostwestfalen-Lippe, 2019, pp. 227–240.' mla: 'Shrotri, Abhijeet Narendra, et al. “Evaluation of Stereolithograghy Processes for the Production of Lens Prototypes.”   Production Engineering and Management : Proceedings 9th International Conference, October 03 and 04, 2019, Trieste, Italy, edited by Elio Padoano and Franz-Josef Villmer, vol. 2019, 01, Technische Hochschule Ostwestfalen-Lippe, 2019, pp. 227–40.' short: A.N. Shrotri, M. Beyer, O. Stübbe, Evaluation of Stereolithograghy Processes for the Production of Lens Prototypes, Technische Hochschule Ostwestfalen-Lippe, Lemgo, 2019. ufg: 'Shrotri, Abhijeet Narendra/Beyer, Micha/Stübbe, Oliver: Evaluation of stereolithograghy processes for the production of lens prototypes, Bd. 2019, 01, hg. von Padoano, Elio/Villmer, Franz-Josef, Lemgo 2019 (Publication series in direct digital manufacturing ).' van: 'Shrotri AN, Beyer M, Stübbe O. Evaluation of stereolithograghy processes for the production of lens prototypes. Padoano E, Villmer FJ, editors.   Production engineering and management : proceedings 9th international conference, October 03 and 04, 2019, Trieste, Italy. Lemgo: Technische Hochschule Ostwestfalen-Lippe; 2019. (Publication series in direct digital manufacturing ; vols. 2019, 01).' conference: end_date: 2019-10-04 location: Trieste name: 9th International Conference on Production Engineering and Management (PEM) start_date: 2019-10-03 date_created: 2022-04-19T10:59:03Z date_updated: 2024-04-19T12:54:20Z department: - _id: DEP5020 - _id: DEP6020 - _id: DEP5000 editor: - first_name: Elio full_name: Padoano, Elio last_name: Padoano - first_name: Franz-Josef full_name: Villmer, Franz-Josef id: '14290' last_name: Villmer keyword: - 3D printing - stereolithography - optical lens - light forming structures - convex lenses - concave lenses - refraction of light - focal length language: - iso: eng page: 227-240 place: Lemgo publication: "\t Production engineering and management : proceedings 9th international conference, October 03 and 04, 2019, Trieste, Italy" publication_identifier: isbn: - 978-3-946856-04-7 publication_status: published publisher: Technische Hochschule Ostwestfalen-Lippe series_title: 'Publication series in direct digital manufacturing ' status: public title: Evaluation of stereolithograghy processes for the production of lens prototypes type: conference_editor_article user_id: '51864' volume: 2019, 01 year: '2019' ... --- _id: '585' abstract: - lang: eng text: "Many low-cost 3D printers have been brought to market over the last couple of years. Most of them apply a Fused Layer Manufacturing (FLM) process, and have made 3D printing a great success amongst hobbyists, the maker community and students. One drawback of such inexpensive equipment is a limited build envelope, which prevents this from becoming a significant contributor to industrial production. To overcome these limits, it is not sufficient to simply upscale dimensions, but the overall concept of such machines must be completely re-thought, as well as the concepts behind several building blocks, components and the process software system.\r\nProblems such as shrinkage of build material, support material and machine parts in combination with long printer head travels, temperature distribution and moisture effects all have to be solved. In addition, larger parts need longer process times. Therefore, reduction of process times and an increase in productivity are necessary in order to enable economic production.\r\nSome of these problems can be solved by using more than one printer head for production, by using new materials and inventing new nozzle systems as distinct solutions for big printers. Nevertheless, to solve all these problems, the development of special machines for large parts is necessary: not component-wise but as a whole system. Large parts could then be successfully produced in several industries, using large, inexpensive FLMmachines.\r\n" author: - first_name: Franz-Josef full_name: Villmer, Franz-Josef id: '14290' last_name: Villmer - first_name: Lars full_name: Witte, Lars id: '45920' last_name: Witte citation: ama: 'Villmer F-J, Witte L. Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself. In: Padoano E, Villmer F-J, Department of Production Engineering and Management, eds. Production Engineering and Management. Lemgo; 2015:111-122.' apa: 'Villmer, F.-J., & Witte, L. (2015). Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself. In E. Padoano, F.-J. Villmer, & Department of Production Engineering and Management (Eds.), Production Engineering and Management (pp. 111–122). Lemgo.' bjps: 'Villmer F-J and Witte L (2015) Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself. In Padoano E, Villmer F-J and Department of Production Engineering and Management (eds), Production Engineering and Management. Lemgo, pp. 111–122.' chicago: 'Villmer, Franz-Josef, and Lars Witte. “Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself.” In Production Engineering and Management, edited by Elio Padoano, Franz-Josef Villmer, and Department of Production Engineering and Management, 111–22. Lemgo, 2015.' chicago-de: 'Villmer, Franz-Josef und Lars Witte. 2015. Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself. In: Production Engineering and Management, hg. von Elio Padoano, Franz-Josef Villmer, und Department of Production Engineering and Management, 111–122. Lemgo.' din1505-2-1: 'Villmer, Franz-Josef ; Witte, Lars: Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself. In: Padoano, E. ; Villmer, F.-J. ; Department of Production Engineering and Management (Hrsg.): Production Engineering and Management. Lemgo, 2015, S. 111–122' havard: 'F.-J. Villmer, L. Witte, Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself, in: E. Padoano, F.-J. Villmer, Department of Production Engineering and Management (Eds.), Production Engineering and Management, Lemgo, 2015: pp. 111–122.' ieee: 'F.-J. Villmer and L. Witte, “Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself,” in Production Engineering and Management, Trieste, Italy, 2015, no. 1, pp. 111–122.' mla: 'Villmer, Franz-Josef, and Lars Witte. “Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself.” Production Engineering and Management, edited by Elio Padoano et al., no. 1, 2015, pp. 111–22.' short: 'F.-J. Villmer, L. Witte, in: E. Padoano, F.-J. Villmer, Department of Production Engineering and Management (Eds.), Production Engineering and Management, Lemgo, 2015, pp. 111–122.' ufg: 'Villmer, Franz-Josef/Witte, Lars (2015): Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself, in: Elio Padoano et. al. (Hgg.): Production Engineering and Management, Lemgo, S. 111–122.' van: 'Villmer F-J, Witte L. Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself. In: Padoano E, Villmer F-J, Department of Production Engineering and Management, editors. Production Engineering and Management. Lemgo; 2015. p. 111–22.' conference: end_date: 2015-10-02 location: Trieste, Italy name: Proceedings5th International Conference start_date: 2015-10-01 corporate_editor: - Department of Production Engineering and Management - Hochschule Ostwestfalen-Lippe date_created: 2019-02-18T14:42:21Z date_updated: 2023-03-15T13:50:02Z department: - _id: DEP1306 editor: - first_name: Elio full_name: Padoano, Elio last_name: Padoano - first_name: Franz-Josef full_name: Villmer, Franz-Josef last_name: Villmer issue: '1' keyword: - 3D printing - FLM - build envelope - large-scale - thermoplastic polymers language: - iso: eng main_file_link: - open_access: '1' url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM_Tagung_zusammen2015.pdf oa: '1' page: 111-122 place: Lemgo publication: Production Engineering and Management publication_identifier: isbn: - 978-3-941645-11-0 publication_status: published related_material: link: - relation: contains url: https://www.hs-owl.de/fileadmin/diman/Veroeffentlichungen/PEM_Tagung_zusammen2015.pdf status: public title: 'Large Scale 3D-Printers: The Challenge of Outgrowing Do-It-Yourself' type: conference user_id: '45673' year: 2015 ... --- _id: '2076' abstract: - lang: eng text: 'Segmentation and feature extraction algorithms based on Wavelet Transform or Wavelet Packet Transform are established in pattern recognition. Especially in the field of texture analysis they are known to be practical. One difficulty of texture analysis was in the past the characterization of different printing processes. In this paper we present a new algorithmic concept to feature extraction of textures, printed by different printing techniques, without the necessity of a previous teaching phase. The typical characters of distinct printed textures are extracted by first order statistical moments of wavelet coefficients. The algorithm uses the 2D incomplete shift invariant Wavelet Packet Transform, resulting in a fast execution time of O(Nlog2(N)). Since the incomplete shift invariant Wavelet Packet Transform was exclusively defined for 1D-signals, it has been modified in this research. The application describes the detection of different printed security textures. ' author: - first_name: Stefan full_name: Glock, Stefan id: '44020' last_name: Glock - first_name: Eugen full_name: Gillich, Eugen id: '1706' last_name: Gillich - first_name: Johannes full_name: Schaede, Johannes id: '2128' last_name: Schaede - first_name: Volker full_name: Lohweg, Volker id: '1804' last_name: Lohweg orcid: 0000-0002-3325-7887 citation: ama: 'Glock S, Gillich E, Schaede J, Lohweg V. Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform. In: Denzler J, Notni G, Süße H, eds. Pattern Recognition. Vol 5748. Lecture Notes in Computer Science. Berlin: Springer; 2009:422-431. doi:https://doi.org/10.1007/978-3-642-03798-6_43' apa: 'Glock, S., Gillich, E., Schaede, J., & Lohweg, V. (2009). Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform. In J. Denzler, G. Notni, & H. Süße (Eds.), Pattern Recognition (Vol. 5748, pp. 422–431). Berlin: Springer. https://doi.org/10.1007/978-3-642-03798-6_43' bjps: 'Glock S et al. (2009) Feature Extraction Algorithm for Banknote Textures Based on Incomplete Shift Invariant Wavelet Packet Transform. In Denzler J, Notni G and Süße H (eds), Pattern Recognition, vol. 5748. Berlin: Springer, pp. 422–431.' chicago: 'Glock, Stefan, Eugen Gillich, Johannes Schaede, and Volker Lohweg. “Feature Extraction Algorithm for Banknote Textures Based on Incomplete Shift Invariant Wavelet Packet Transform.” In Pattern Recognition, edited by J. Denzler, G. Notni, and H. Süße, 5748:422–31. Lecture Notes in Computer Science. Berlin: Springer, 2009. https://doi.org/10.1007/978-3-642-03798-6_43.' chicago-de: 'Glock, Stefan, Eugen Gillich, Johannes Schaede und Volker Lohweg. 2009. Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform. In: Pattern Recognition, hg. von J. Denzler, G. Notni, und H. Süße, 5748:422–431. Lecture Notes in Computer Science. Berlin: Springer. doi:https://doi.org/10.1007/978-3-642-03798-6_43, .' din1505-2-1: 'Glock, Stefan ; Gillich, Eugen ; Schaede, Johannes ; Lohweg, Volker: Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform. In: Denzler, J. ; Notni, G. ; Süße, H. (Hrsg.): Pattern Recognition, Lecture Notes in Computer Science. Bd. 5748. Berlin : Springer, 2009, S. 422–431' havard: 'S. Glock, E. Gillich, J. Schaede, V. Lohweg, Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform, in: J. Denzler, G. Notni, H. Süße (Eds.), Pattern Recognition, Springer, Berlin, 2009: pp. 422–431.' ieee: 'S. Glock, E. Gillich, J. Schaede, and V. Lohweg, “Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform,” in Pattern Recognition, vol. 5748, J. Denzler, G. Notni, and H. Süße, Eds. Berlin: Springer, 2009, pp. 422–431.' mla: Glock, Stefan, et al. “Feature Extraction Algorithm for Banknote Textures Based on Incomplete Shift Invariant Wavelet Packet Transform.” Pattern Recognition, edited by J. Denzler et al., vol. 5748, Springer, 2009, pp. 422–31, doi:https://doi.org/10.1007/978-3-642-03798-6_43. short: 'S. Glock, E. Gillich, J. Schaede, V. Lohweg, in: J. Denzler, G. Notni, H. Süße (Eds.), Pattern Recognition, Springer, Berlin, 2009, pp. 422–431.' ufg: 'Glock, Stefan et. al. (2009): Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform, in: J. Denzler et. al. (Hgg.): Pattern Recognition (=Lecture Notes in Computer Science 5748), Berlin, S. 422–431.' van: 'Glock S, Gillich E, Schaede J, Lohweg V. Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform. In: Denzler J, Notni G, Süße H, editors. Pattern Recognition. Berlin: Springer; 2009. p. 422–31. (Lecture Notes in Computer Science; vol. 5748).' conference: end_date: 2009-11-11 name: The 31st annual pattern recognition symposium of the German Association for Pattern Recognition DAGM (Deutsche Arbeitsgemeinschaft für Mustererkennung DAGM e.V.) September 9-11, 2009, accepted for publication start_date: 2009-11-09 date_created: 2019-11-29T14:35:35Z date_updated: 2023-03-15T13:49:38Z department: - _id: DEP5023 doi: https://doi.org/10.1007/978-3-642-03798-6_43 editor: - first_name: J. full_name: Denzler, J. last_name: Denzler - first_name: G. full_name: Notni, G. last_name: Notni - first_name: H. full_name: Süße, H. last_name: Süße intvolume: ' 5748' keyword: - Discrete Wavelet Transform - Wavelet Transform - Wavelet Packet - Decomposition Level - Printing Technique language: - iso: eng main_file_link: - url: https://link.springer.com/chapter/10.1007/978-3-642-03798-6_43 page: 422-431 place: Berlin publication: Pattern Recognition publication_identifier: eisbn: - 978-3-642-03798-6 isbn: - 978-3-642-03797-9 publication_status: published publisher: Springer series_title: Lecture Notes in Computer Science status: public title: Feature Extraction Algorithm for Banknote Textures based on Incomplete Shift Invariant Wavelet Packet Transform type: book_chapter user_id: '45673' volume: 5748 year: 2009 ... --- _id: '2068' abstract: - lang: eng text: The production of printing goods is laborious. Furthermore, the print quality, especially in banknotes, must be assured. It is accepted, that print defects are generated because printing parameters, also machine parameters can change unnoticed. Therefore, a combined concept for a multi-sensory learning and classification model based on new adaptive fuzzy-pattern-classifiers for data inspection is proposed. This inspection concept, which combines optical, acoustical and other machine information, comes up with a large amount of data, which leads to multivariate methods for data analysis. Multivariate methods are useful for analysis of large and complex data sets that consist of many variables measured on large numbers of physical data. author: - first_name: Walter full_name: Dyck, Walter last_name: Dyck - first_name: Thomas full_name: Türke, Thomas last_name: Türke - first_name: Johannes full_name: Schaede, Johannes id: '2128' last_name: Schaede - first_name: Volker full_name: Lohweg, Volker id: '1804' last_name: Lohweg orcid: 0000-0002-3325-7887 citation: ama: 'Dyck W, Türke T, Schaede J, Lohweg V. A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion. In: Thessaloniki, Greece: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING; 2007:accepted for publication. doi:10.1109/MLSP.2007.4414320' apa: 'Dyck, W., Türke, T., Schaede, J., & Lohweg, V. (2007). A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion (p. accepted for publication). Thessaloniki, Greece: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING. https://doi.org/10.1109/MLSP.2007.4414320' bjps: 'Dyck W et al. (2007) A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion. Thessaloniki, Greece: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING, p. accepted for publication.' chicago: 'Dyck, Walter, Thomas Türke, Johannes Schaede, and Volker Lohweg. “A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion,” accepted for publication. Thessaloniki, Greece: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING, 2007. https://doi.org/10.1109/MLSP.2007.4414320.' chicago-de: 'Dyck, Walter, Thomas Türke, Johannes Schaede und Volker Lohweg. 2007. A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion. In: , accepted for publication. Thessaloniki, Greece: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING. doi:10.1109/MLSP.2007.4414320, .' din1505-2-1: 'Dyck, Walter ; Türke, Thomas ; Schaede, Johannes ; Lohweg, Volker: A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion. In: . Thessaloniki, Greece : MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING, 2007, S. accepted for publication' havard: 'W. Dyck, T. Türke, J. Schaede, V. Lohweg, A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion, in: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING, Thessaloniki, Greece, 2007: p. accepted for publication.' ieee: W. Dyck, T. Türke, J. Schaede, and V. Lohweg, “A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion,” 2007, p. accepted for publication. mla: Dyck, Walter, et al. A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion. MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING, 2007, p. accepted for publication, doi:10.1109/MLSP.2007.4414320. short: 'W. Dyck, T. Türke, J. Schaede, V. Lohweg, in: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING, Thessaloniki, Greece, 2007, p. accepted for publication.' ufg: 'Dyck, Walter et. al. (2007): A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion, in: , Thessaloniki, Greece, S. accepted for publication.' van: 'Dyck W, Türke T, Schaede J, Lohweg V. A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion. In Thessaloniki, Greece: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING; 2007. p. accepted for publication.' date_created: 2019-11-29T13:50:28Z date_updated: 2023-03-15T13:49:38Z department: - _id: DEP5023 doi: 10.1109/MLSP.2007.4414320 keyword: - Sensor fusion - Inspection - Optical sensors - Printing machinery - Data security - Data analysis - Production - Degradation - Principal component analysis - Karhunen-Loeve transforms language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4414320&tag=1 page: accepted for publication place: Thessaloniki, Greece publication_identifier: eisbn: - 978-1-4244-1566-3 isbn: - 978-1-4244-1565-6 issn: - '1551-2541 ' unknown: - '2378-928X ' publication_status: published publisher: MLSP 2007 - International Workshop on MACHINE LEARNING FOR SIGNAL PROCESSING status: public title: A Fuzzy-Pattern-Classifier-Based Adaptive Learning Model for Sensor Fusion type: conference user_id: '45673' year: 2007 ... --- _id: '2062' abstract: - lang: eng text: 'Bank note inspection is a complex task. As more and more print techniques and new security features are established, total quality security and bank note printing must be assured. Therefore, this factor necessitates change of a sensorial concept in general. We propose an optical-acoustical inspection method based upon the concepts of information fusion and fuzzy interpretation of data measures. Furthermore, we present a simplified scheme for information fusion for pattern recognition and data classification based on parametrical unimodal potential functions and a Sugeno-type score value analysis. Digital Object Identifier: 10.1109/ICIF.2006.301779
' author: - first_name: Walter full_name: Dyck, Walter last_name: Dyck - first_name: Johannes full_name: Schaede, Johannes id: '2128' last_name: Schaede - first_name: Thomas full_name: Türke, Thomas last_name: Türke - first_name: Volker full_name: Lohweg, Volker id: '1804' last_name: Lohweg orcid: 0000-0002-3325-7887 citation: ama: 'Dyck W, Schaede J, Türke T, Lohweg V. Information Fusion Application On Security Printing With Parametrical Fuzzy Classification. In: 2006 9th International Conference on Information Fusion. 9th International Conference on Information Fusion, 2006. ICIF ’06; 2006:1-8. doi:10.1109/ICIF.2006.301779' apa: Dyck, W., Schaede, J., Türke, T., & Lohweg, V. (2006). Information Fusion Application On Security Printing With Parametrical Fuzzy Classification. In 2006 9th International Conference on Information Fusion (pp. 1–8). 9th International Conference on Information Fusion, 2006. ICIF ’06. https://doi.org/10.1109/ICIF.2006.301779 bjps: Dyck W et al. (2006) Information Fusion Application On Security Printing With Parametrical Fuzzy Classification. 2006 9th International Conference on Information Fusion. 9th International Conference on Information Fusion, 2006. ICIF ’06, pp. 1–8. chicago: Dyck, Walter, Johannes Schaede, Thomas Türke, and Volker Lohweg. “Information Fusion Application On Security Printing With Parametrical Fuzzy Classification.” In 2006 9th International Conference on Information Fusion, 1–8. 9th International Conference on Information Fusion, 2006. ICIF ’06, 2006. https://doi.org/10.1109/ICIF.2006.301779. chicago-de: 'Dyck, Walter, Johannes Schaede, Thomas Türke und Volker Lohweg. 2006. Information Fusion Application On Security Printing With Parametrical Fuzzy Classification. In: 2006 9th International Conference on Information Fusion, 1–8. 9th International Conference on Information Fusion, 2006. ICIF ’06. doi:10.1109/ICIF.2006.301779, .' din1505-2-1: 'Dyck, Walter ; Schaede, Johannes ; Türke, Thomas ; Lohweg, Volker: Information Fusion Application On Security Printing With Parametrical Fuzzy Classification. In: 2006 9th International Conference on Information Fusion : 9th International Conference on Information Fusion, 2006. ICIF ’06, 2006, S. 1–8' havard: 'W. Dyck, J. Schaede, T. Türke, V. Lohweg, Information Fusion Application On Security Printing With Parametrical Fuzzy Classification, in: 2006 9th International Conference on Information Fusion, 9th International Conference on Information Fusion, 2006. ICIF ’06, 2006: pp. 1–8.' ieee: W. Dyck, J. Schaede, T. Türke, and V. Lohweg, “Information Fusion Application On Security Printing With Parametrical Fuzzy Classification,” in 2006 9th International Conference on Information Fusion, 2006, pp. 1–8. mla: Dyck, Walter, et al. “Information Fusion Application On Security Printing With Parametrical Fuzzy Classification.” 2006 9th International Conference on Information Fusion, 9th International Conference on Information Fusion, 2006. ICIF ’06, 2006, pp. 1–8, doi:10.1109/ICIF.2006.301779. short: 'W. Dyck, J. Schaede, T. Türke, V. Lohweg, in: 2006 9th International Conference on Information Fusion, 9th International Conference on Information Fusion, 2006. ICIF ’06, 2006, pp. 1–8.' ufg: 'Dyck, Walter et. al. (2006): Information Fusion Application On Security Printing With Parametrical Fuzzy Classification, in: 2006 9th International Conference on Information Fusion, S. 1–8.' van: 'Dyck W, Schaede J, Türke T, Lohweg V. Information Fusion Application On Security Printing With Parametrical Fuzzy Classification. In: 2006 9th International Conference on Information Fusion. 9th International Conference on Information Fusion, 2006. ICIF ’06; 2006. p. 1–8.' date_created: 2019-11-29T13:35:03Z date_updated: 2023-03-15T13:49:38Z department: - _id: DEP5023 doi: 10.1109/ICIF.2006.301779 keyword: - Information security - Inspection - Printing machinery - Optical sensors - Data security - Personnel - Fuzzy systems - Sensor systems - Expert systems - Ink language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/document/4086065/keywords#full-text-header page: 1-8 publication: ' 2006 9th International Conference on Information Fusion' publication_identifier: isbn: - ' 1-4244-0953-5' publication_status: published publisher: 9th International Conference on Information Fusion, 2006. ICIF '06 status: public title: Information Fusion Application On Security Printing With Parametrical Fuzzy Classification type: conference user_id: '45673' year: 2006 ...