Image analysis – Image segmentation
Patent
1996-07-26
1998-12-15
Couso, Jose L.
Image analysis
Image segmentation
382180, 382224, G06K 934, G06K 962
Patent
active
058504745
ABSTRACT:
A method and apparatus for segmenting image data into windows and for classifying the windows as typical image types includes making two passes through the image data. The method includes a step of making a first pass through the image data to identify windows and to record the beginning points and image types of each of the windows, and a step of making a second pass through the image data to label each of the pixels as a particular image type. The invention also includes a macro-detection method and apparatus for separating a scanline of image data into edges and image runs and for classifying each of the edges and image runs as standard image types. In the macro-detection method, image runs and edges are classified based on micro-detection results and based on image types of adjacent image runs.
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Fan Zhigang
Revankar Shriram
Ryall Kathy
Shiau Jeng-Nan
Couso Jose L.
Novik Dmitry A.
Xerox Corporation
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