Full-Color Computational Imaging with Single-Pixel Detectors Based on a 2D Discrete Cosine Transform

摘要

We propose and demonstrate a computational imaging technique that usesstructured illumination based on a two-dimensional discrete cosine transform toperform imaging with a single-pixel detector. A scene is illuminated by aprojector with two sets of orthogonal patterns, then by applying an inversecosine transform to the spectra obtained from the single-pixel detector afull-color image is retrieved. This technique can retrieve an image fromsub-Nyquist measurements, and the background noise is easily canceled to giveexcellent image quality. Moreover, the experimental setup is very simple.