Feature Detection Filter Using Orientation Fields
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United States of America Patent
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Issued Date -
Sep 12, 2013
app pub date -
Feb 25, 2013
filing date -
Feb 24, 2012
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A target object is found in a target image, by using a computer for determining an orientation field of at least plural pixels of the target image, where the orientation field describes pixels at discrete positions of the target image being analyzed according to an orientation, and location. The orientation field is mapped against an orientation field in model images in a database to compute match values between the orientation field of the target image and orientation field of model images in the database. The match values are thresholded, and those match values that exceed the threshold to are counted to determine a match between the target and the model.
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