Spectral-based approach to subpixel image formation
Current approach to the increase of the resolution is based on receiving images from several image sensor arrays shifted by subpixel distance [1, 2]. The analysis of the image forming process has shown that a pixel aperture works as a low-pass spatial filter and decreases spatial resolution even if several image sensors shifted by subpixel distance are used. The proposed by the authors approach uses both shifted image sensor arrays and data processing based on inverse filtering.