Correlation techniques
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United States of America Patent
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-
May 15, 1990
Issued Date -
N/A
app pub date -
Dec 30, 1988
filing date -
Jan 22, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An item of interest may be located in a scene image by scanning a reference image containing the item (extracted from a previous image of the scene for example) over the scene image and, for each position of the reference image, correlating corresponding pairs of pixels from the reference and scene images. Herein, to avoid inaccuracies due to bright spots say affecting a small portion of the scene image, for each position of the reference image, all the pixel pairs are correlated and an average similarity value assigned to that reference image position.
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Cited Art Landscape
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