Image analysis – Pattern recognition – Feature extraction
Patent
1995-10-27
1998-05-19
Couso, Yon J.
Image analysis
Pattern recognition
Feature extraction
382288, 382299, G06K 948, G06K 936, G06K 932
Patent
active
057546908
ABSTRACT:
An image detection and pixel processing system includes a plurality of position sensitive detector elements arranged to receive an image. Each position sensitive detector element provides information for determining both a total light intensity value within the position sensitive detector element and a centroid of light intensity indicative of light intensity position within the position sensitive detector element. An image processing assembly receives information from the plurality of position detector elements with the image processing assembly relating a pixel and its encompassed subpixel area to each corresponding position detector element. The total light intensity within the pixel and the centroid of light intensity within the subpixel is determined, with the image processing assembly rendering each subpixel area as an edge when magnitude of the centroid of light intensity is large.
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Basu Sumit
Biegelsen David K.
Jackson Warren B.
Jared David A.
Burtzlaff Robert A.
Couso Yon J.
Nguyen Ha Tran
Xerox Corporation
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