Dark frame subtraction using compression

Details Dark frame subtraction using compression Dark frame subtraction using compression

2006-01-03

2006-01-03

Shah, Sanjiv (Department: 2625)

Image analysis

Image compression or coding

Including details of decompression

C382S275000, C348S243000

Reexamination Certificate

active

06983072

ABSTRACT:
A method and system for improving the quality of an image in an electronic imaging system is disclosed. The method and system comprise capturing an image frame, capturing a compressed dark frame, decompressing a portion of the compressed dark frame and subtracting the decompressed portion of the compressed dark frame from a corresponding section of the image frame. The steps of decompressing a portion of the compressed dark frame and subtracting the decompressed portion from a corresponding section of the image frame are repeated for additional portions of the compressed dark frame.

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