Method and apparatus for target object extraction from an image
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United States of America Patent
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Sep 19, 2006
Grant Date -
Jun 12, 2003
app pub date -
Jan 22, 2002
filing date -
Dec 10, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Geometrical structures of a human image and a background image picked up by a camera are extracted as difference in pixel value distributions, a statistical model of the appearance of the human image is first constructed to find a discrimination axis, the model is compared with an input image, a score is calculated based on the discrimination axis of the model and a distance value vector of the input image, and when the score exceeds a threshold value, it is determined that a human figure is detected. Thus, highly efficient recognition is possible using a small number of models.
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