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Demonstration of a multichannel, multiresolution imaging system

Publication date 2013
B-Phot Authors Heidi Ottevaere, Michael Vervaeke, Hugo Thienpont
DOI 10.1364/AO.52.006081
Citation
G. Belay, H. Ottevaere, Y. Meuret, M. Vervaeke, J. Van  Erps, and H. Thienpont, “Demonstration of a multichannel, multiresolution imaging system,” Appl. Optics, vol. 52, no. 24, pp. 6081–6089, 2013.
Abstract In conventional multichannel imaging systems, all channels have similar imaging properties [field-of-view (FOV) and angular resolution]. In our approach, channels are designed to have different imaging properties which add multiresolution capability to the system. We have experimentally demonstrated, for the first time to our knowledge, a three-channel imaging system which simultaneously captures multiple images having different magnifications and FOVs on an image sensor. Each channel consists of four aspherical lens surfaces fabricated from four PMMA plates by ultraprecision diamond tooling and of a baffle made from a titanium (Ti) and aluminum (Al) based metal alloy. The integrated imaging system is able to record a FOV of 7.6 degrees with the first channel and 73 degrees with the third channel while having a magnification ratio of about 6 between them. The experimental and simulation results, specifically the FOV and magnification ratios, are comparable, and this paves a way for low-cost, compact imaging systems which can embed smart imaging functionalities.
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