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25 April 2008Novel hemispheric image formation: concepts and applications
Panoramic and hemispheric lens technologies represent new and exciting opportunities in both imaging and projection
systems. Such lenses offer intriguing applications for the transportation/automotive industry, in the protection of
civilian and military areas, business. In this paper we describe a new optical design technique that provides a greater
degree of freedom in producing a variety of hemispheric spatial light distribution areas. This innovative optical design
strategy, of generating and controlling image mapping, has been successful in producing high-resolution imaging and
projection systems. This success has subsequently generated increased interest in the high-resolution camera/projector
and the concept of absolute measurement with high-resolution wide-angle lenses. The new technique described in this
paper uses optimization techniques to improve the performance of a customized wide-angle lens optical system for a
specific application. By adding a custom angle-to-pixel ratio at the optical design stage, this customized optical system
provides ideal image coverage while reducing and optimizing signal processing. This novel image formation technique
requires the development of new algorithms in order to view the panoramic image on a display without any residual
distortion.
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Simon Thibault, Pierre Konen, Patrice Roulet, Mathieu Villegas, "Novel hemispheric image formation: concepts and applications," Proc. SPIE 6994, Photon Management III, 699406 (25 April 2008); https://doi.org/10.1117/12.781597