Abstract
Attractive revolutions of imaging technologies, such as Light Field Camera and Lensless Camera, are expected to innovate various imaging applications. We propose another technology to realize a lensless light-field imaging method. The device consists of an image sensor and a Fresnel zone aperture (FZA) slightly separated in a few millimeter spacing. Synthesized shadows of it with the incident light are detected and generate moiré fringes interfering with another virtual FZA in a computer. Images are reconstructed by FFT of the fringes. Re-focusing is available by changing the size of the virtual FZA. We experimentally confirmed feasibility of the method by using a prototype which can reconstruct image at over 30 fps.
