Method for identifying bad pixel against a non-uniform landscape
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United States of America Patent
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Dec 30, 2008
Grant Date -
Sep 28, 2006
app pub date -
May 12, 2004
filing date -
May 26, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for identifying bad pixels in a matrix imaging sensor comprises moving the matrix sensor in a prescribed motion with respect to a background landscape (FIG. 1, 10), acquiring a combined image of the landscape, and identifying bad pixels (16) in the matrix sensor from the combined image. The identification is aided by preferably applying filtering to the combined image. The prescribed motion is preferably rotation of the sensor or translation of the sensor around a circle, and the combined image includes a plurality of preferably similar landscape images. The identification of the bad pixels is performed on-line, in real-time, without requiring the use of a black body.
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