Optical information processing apparatus and method using...

Details Optical information processing apparatus and method using... Optical information processing apparatus and method using...

G - Physics

06

E

G06E 3/00 (2006.01) G03H 1/08 (2006.01) G06K 9/76 (2006.01)

Patent

CA 2043843

In optical information processing apparatus and method an input image of an object is optically Fourier transformed. After coordinate transforming the Fourier-transformed input image optically to obtain a rotation-invariant and scale-invariant image, the resultant image is pattern-matched with a computer generated hologram of a reference image. The coordinate transformation of the Fourier-transformed input image is carried out using an optical phase filter represented as a computer generated hologram.

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