Image feature identification and motion compensation apparatus, systems, and methods
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United States of America Patent
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Jun 2, 2009
Grant Date -
Sep 18, 2008
app pub date -
Jun 6, 2007
filing date -
Mar 14, 2007
priority date (Note) -
In Force
status (Latency Note)
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Abstract
Apparatus, systems, and methods disclosed herein may estimate the magnitude of relative motion between a scene and an image capture device used to capture the scene. Some embodiments may utilize discrete cosine transform and/or Sobel gradient techniques to identify one or more blocks of pixels in an originating calibration image frame. Matching blocks of pixels may be located in a successive calibration image frame. Motion vectors originating at one calibration frame and terminating at the other calibration frame may be calculated. The magnitude of relative motion derived thereby may be used to adjust image capture parameters associated with the image capture device, including exposure settings.
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