Two image-subtraction systems from output images that show differences between input images of two objects. First: differences appear as bright regions in otherwise dark output image. Second: differences and similarities shown by colors. All parts of two images processed simultaneously by optical components only; digital electronic processing of data not required. Concept offers potential for rapid, inexpensive comparison of images in such applications as automatic inspection, medical diagnosis, and robotic vision.
Liquid-Crystal-Television Image Subtracters
NASA Tech Briefs ; 12 , 10
1988-11-01
Sonstige
Keine Angabe
Englisch
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