Iterative Intensity Integration Technique (IIIT) for contouring reflective surfaces |
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| Institution: | 1. School of Electronics and Information Engineering, Sichuan University, Chengdu 610065, China;2. School of Computer Science and Information Technology, Liaoning Normal University, Dalian Liaoning, China;3. Department of Information and Communications, Pukyong National University, 599-1, Daeyeon 3-Dong, Nam-Gu, Busan, Republic of Korea;1. Department of Mechanical, Materials and Aerospace Engineering, Illinois Institute of Technology, Chicago, IL 60616, USA;2. Department of Mechanical Engineering, Northern Illinois University, DeKalb, IL 60115, USA;3. Dipartimento di Meccanica, Matematica e Management, Politecnico di Bari, Bari 70126, Italy;1. Proplast Consortium, Strada Comunale Savonesa 9, Rivalta Scrivia (AL), Italy;2. Swerea SICOMP, PO Box 104, SE-431 22 Mölndal, Sweden;3. Swerea SICOMP, PO Box 271, SE-941 26 Piteå, Sweden;4. Composite Centre Sweden, Luleå University of Technology, SE-971 87 Luleå, Sweden;5. SP Technical Research Institute of Sweden, Borås, Sweden;6. Dipartimento di Scienza Applicata e Tecnologia, Politecnico di Torino, sede di Alessandria, Italy;1. School of Physics and Optoelectronic Engineering, Guangdong University of Technology, Guangzhou 510006, China;2. Vision Lab. ISEN Brest, L@bISEN, 20 rue Cuirassé Bretagne, CS 42807, 29228 Brest Cedex 2, France;3. Université de Brest, Lab-STICC, 6 avenue Le Gorgeu, CS 93837, 29238 Brest Cedex 3, France |
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| Abstract: | Intensity Integration Technique (IIT) is an image correlation technique founded on energy conservation principle to contour reflective surfaces. The sum (integral) of intensities along pixel lines is identified as correlation parameter between the loaded and the unloaded images. At present, this procedure is employed to contour 2D reflective plates aided by projected gridlines onto reflected intensity images. Here, the gridline projection is dispensed with thereby simplifying the experimental procedure, with an iterative algorithm, Iterative Intensity Integration Technique (IIIT), developed to contour deformed reflective plates. In illustration, centrally as well as eccentrically loaded circular plates are studied. As a viable extension of IIIT, a method is suggested for generating digital Moiré fringes with pixel lines as grating lines. |
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| Keywords: | Intensity based image correlation Intensity Integration Technique Centrally loaded clamped circular plate Eccentric loading Iterative IIT Moiré fringes |
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