Smear correction of CCD imager using active pixels

Details Smear correction of CCD imager using active pixels Smear correction of CCD imager using active pixels

1995-06-05

1997-08-26

Faile, Andrew

Television

Camera, system and detail

Combined image signal generator and general image signal...

348255, H04N 5335

Patent

active

056615213

ABSTRACT:
A smear correction circuit for elimination of smear error within image sensing devices wherein image receiving means receive CCD image data, a determination of a smear scaling factor for smear estimation is made, the smear scaling factor being determined by a ratio of smear error per given level of illumination. The smear estimation means provide for the determining of a value for smear estimation on a per line basis. Adjustment of the image data is made corresponding to the smear estimation and dark level correction values prior applying the adjusted data to gain adjustment circuitry.

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