System and method of static pattern removal from movies captured using a digital CCD camera
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United States of America Patent
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Issued Date -
Nov 20, 2008
app pub date -
May 18, 2007
filing date -
May 18, 2007
priority date (Note) -
Abandoned
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Abstract
An efficient and robust mechanism for static pattern removal from movies captured with a digital CCD camera. A correction map of malfunctioning underexposed CCD pixels is provided and applied to each image in the affected shot to correct the malfunctioning pixels. The correction map may be associated with the specific images in a given shot or with a particular CCD camera. The entire process, other than possibly the initial step of determining which shots to correct, is fully-automated on a computer workstation. The computer generates the correction map, applies it to each image and validates the correction. This is a considerably more efficient approach than one in which a technician must determine there is a problem of under exposure, identify the malfunctioning pixels in each frame and manually retouch the affected pixels.
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