Methods, systems and apparatuses for imager row-wise noise...

Details Methods, systems and apparatuses for imager row-wise noise... Methods, systems and apparatuses for imager row-wise noise...

2011-08-02

2011-08-02

Kassa, Yosef (Department: 2624)

Image analysis

Image enhancement or restoration

C382S260000, C382S274000, C382S275000, C358S003260, C358S003270, C358S463000

Reexamination Certificate

active

07991239

ABSTRACT:
Methods, systems and apparatuses that provide improved row-wise digital correction in an imager. During image processing, row-wise noise is corrected by applying a fractional portion of a maximum digital correction to the pixels. The maximum digital correction is determined from light shielded reference pixels in each row. During imager calibration, a preferred digital correction fraction is determined and used for correction.

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