Imager flicker compensation systems and methods
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United States of America Patent
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Oct 2, 2007
Grant Date -
Mar 16, 2006
app pub date -
Sep 9, 2005
filing date -
Sep 9, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of capturing an image of a scene includes providing an imaging device having an array of pixels. Each pixel is configured to provide a pixel output. The method also includes determining a frequency of light produced by a light source illuminating the scene and capturing an image of the scene using the pixel array. A first capture time for one or more pixels in the array is different from a second capture time of one or more other pixels in the array. The method further includes, for each pixel in the array, determining a relative phase of the light with respect to the capture time of the pixel, determining a compensating gain based on the relative phase of the light and the frequency of the light, and adjusting the pixel output of the pixel in relation to the compensating gain.
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