Multi-pass dark frame subtraction

Details Multi-pass dark frame subtraction Multi-pass dark frame subtraction

2005-10-18

2005-10-18

Mehta, Bhavesh M. (Department: 2625)

Image analysis

Image enhancement or restoration

Intensity, brightness, contrast, or shading correction

C382S232000, C348S243000, C358S483000

Reexamination Certificate

active

06956978

ABSTRACT:
A method and system for improving the quality of an image obtained by an electronic imaging system is disclosed. The method and system comprise capturing an image frame, capturing a partial dark frame and subtracting the partial dark frame from a corresponding section of the image frame. The steps of capturing a partial dark frame and subtracting the partial dark frame from a corresponding section of the image frame are repeated for additional partial dark frames.

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Search Report issued on Aug. 17, 2004, in counterpart foreign application in the Netherlands under application No. 1022903.

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