Image analysis – Pattern recognition – Feature extraction
Patent
1995-10-27
1998-08-04
Mancuso, Joseph
Image analysis
Pattern recognition
Feature extraction
382288, 382299, G06K 948, G06K 936, G06K 932
Patent
active
057906998
ABSTRACT:
An image detection and pixel processing system includes a plurality of detector elements for receiving an image. The detector elements are subdivided into a plurality of macrodetectors, with each macrodetector constituting four or more detector elements, and with each macrodetector providing information for determining both a total light intensity value within the macrodetector and a centroid of light intensity indicative of light intensity position within the macrodetector. An image processing assembly receives information from the plurality of macrodetectors, with the image processing assembly relating a pixel and its encompassed subpixel area to each corresponding macrodetector, and further determining the total light intensity within the pixel and the centroid of light intensity within the subpixel. The image processing assembly is capable of rendering each subpixel area as an edge when magnitude of the centroid of light intensity is greater than a predetermined threshold.
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Basu Sumit
Biegelsen David K.
Jackson Warren B.
Jared David A.
Burtzlaff Robert A.
Mancuso Joseph
Nguyen Ha Tran
Xerox Corporation
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