Multi-aperture foveated imaging

作者:Carles, Guillem; Chen, Shouqian; Bustin, Nicholas; Downing, James; McCall, Duncan; Wood, Andrew; Harvey, Andrew R.*
来源:Optics Letters, 2016, 41(8): 1869-1872.
DOI:10.1364/OL.41.001869

摘要

Foveated imaging, such as that evolved by biological systems to provide high angular resolution with a reduced space-bandwidth product, also offers advantages for man-made task-specific imaging. Foveated imaging systems using exclusively optical distortion are complex, bulky, and high cost, however. We demonstrate foveated imaging using a planar array of identical cameras combined with a prism array and superresolution reconstruction of a mosaicked image with a foveal variation in angular resolution of 5.9:1 and a quadrupling of the field of view. The combination of low-cost, mass-produced cameras and optics with computational image recovery offers enhanced capability of achieving large foveal ratios from compact, low-cost imaging systems.