HackerTube / Video
Fourier Optics used for Optical Pattern Recognition
Huygens Optics
Huygens Optics explains the Fourier transform and shows how a lens performs one optically. A DLP projector is used as a Fourier filter to do simple pattern recognition on lithographic character patterns.
Recommended as one of the best explanations of Fourier transforms and a clear demo of analog optical computing.
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