Communications: directive radio wave systems and devices (e.g. – Synthetic aperture radar
Reexamination Certificate
2011-06-14
2011-06-14
Sotomayor, John B (Department: 3662)
Communications: directive radio wave systems and devices (e.g.,
Synthetic aperture radar
C342S174000, C342S02500R, C342S02500R, C342S052000, C348S188000, C382S218000, C382S294000
Reexamination Certificate
active
07961134
ABSTRACT:
Self-calibrating an automatic, surveillance-based change detection system operating on noisy imagery comprises detecting a first image co-registered with a second image, wherein the first image and the second image each comprise pixels of a noisy image of a scene; detecting the second image co-registered with the first image, wherein co-registration of the first image with the second image comprises pixels from different images corresponding to a same location within the scene; producing a calibration factor based on the co-registered images; producing a modified ratio of pixel values corresponding to the first image and the second image from the same location within the scene; and comparing the modified ratio to a pre-determined threshold ratio value.
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Ranney Kenneth I.
Sichina Jeffrey
Kyriakou Christos S.
Sotomayor John B
The United States of America as represented by the Secretary of
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