Television – Camera – system and detail – Combined image signal generator and general image signal...
Patent
1997-10-29
2000-01-04
Garber, Wendy
Television
Camera, system and detail
Combined image signal generator and general image signal...
348219, H04N 5217
Patent
active
06011584&
ABSTRACT:
A dithered offset correction method wherein, according to a first embodiment, updates are made of the offset correction during each iteration and, after four iterations, the offset for each pixel or detector element is updated from all of its neighbors to provide faster convergence than is obtainable by the prior art. In accordance with a second embodiment, the offset for each detector element is updated for every iteration and, for each update, the update is made with information from an entire row or an entire column of data. After four iterations, each offset has been updated with information from every detector element in the focal plane array. This provides even more rapid convergence compared to the prior art.
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O'Neil, "Dithered Scan Detector Compensation", Proc. IRIS Passive Sensors, 1992. vol. 1, pp. 123-134.
O'Neil, et al., "Experimental Performance of a Dither-Scanned InSb Array", Proc. IRIS Passive Sensors, 1993, vol. 1., Title Page and pp. 167-176.
O'Neil, "Experimental Verification of Dither Scan Non-uniformity Correction", 1996 IRIS, 11 unnumbered pages.
Allen John B.
Allred Rustin W.
Leatham Anthony L.
Snyder, III John L.
Whitney Donald C.
Garber Wendy
Moe Aung S.
Raytheon Company
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