Method and structure for minimizing error sources in image...

Details Method and structure for minimizing error sources in image... Method and structure for minimizing error sources in image...

2005-08-16

2005-08-16

Porta, David (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controlled circuit

C250S2140LS

Reexamination Certificate

active

06930298

ABSTRACT:
A method and structure for minimizing one or more non-uniformities in image and position sensing detectors are provided. The structure is directed to a focal plane processor for removing non-uniformities which distort the computation of a desired property of an object of interest in an image field. The focal plane processor is capable of selectively disconnecting one or more rows and/or columns from further processing in the imaging array for those rows and/or columns which contribute to the presence of at least one non-uniformity in a video image generated by the focal plane processor. In one embodiment, the disconnection means is embodied as pre-processing circuitry which includes row and column shift registers which provide control signals to area-of-interest (AOI) switches. In another embodiment, the pixels which comprise the focal plane array are constructed in a manner which facilitates their individual isolation.

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patent: 5442176 (1995-08-01), Eckel, Jr. et al.
patent: 5523570 (1996-06-01), Hairston
patent: 5723866 (1998-03-01), Hamilton, Jr.

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