Optical correlator

摘要

This identification system includes: - a diffusing filter image source (S); - a spatial light modulator (MSL2) displaying a scene image; - a photodetector (CA) receiving the light coming from the various points on the filter image and passing via the scene image. The two images have different sizes and the photodetector (CA) is located at the homothetic centre of the two images. Application: image identification system. <IMAGE>