Method of difference sensing through optical coherent change...

Details Method of difference sensing through optical coherent change... Method of difference sensing through optical coherent change...

G - Physics

06

T

G06T 5/50 (2006.01) G06T 7/20 (2006.01)

Patent

CA 2598672

A method of difference sensing. A first step involves producing a reference image using temporal averaging and spatial averaging. A second step involves producing a test image. A third step involves computationally comparing the reference image with the test image to arrive at a resulting difference image. The temporal averaging and spatial averaging effectively isolates in the difference image coherent changes imbeded in a complex and rapidly changing environment from transient changes inherent to the complex and rapidly changing environment.

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