Image analysis – Image segmentation – Distinguishing text from other regions
Reexamination Certificate
2005-09-06
2005-09-06
Patel, Kanjibhai (Department: 2625)
Image analysis
Image segmentation
Distinguishing text from other regions
C382S243000, C358S462000
Reexamination Certificate
active
06941014
ABSTRACT:
This invention relates to a method and apparatus for segmenting an image using a combination of image segmentation techniques. More particularly, the invention is directed to an improved image segmentation technique for use in an image processing system that performs at least two distinct image segmentation processes on an image and combines the results to obtain a combined multi-layer representation of the image that can be suitably processed. In a specific example, a block based segmentation technique is performed on an image to generate a MRC (mixed raster content) representation—having foreground, background and selector layers. A pixel based segmentation technique is also performed on the image to generate rendering hints. The MRC representation and the rendering hints are then combined to obtain a four (4) layer representation of the image. The four layer representation is subsequently processed as required by the image processing system, e.g. compressed and stored.
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Banton Martin E.
Fuss William A.
Lin Ying-wei
Bayat Ali
Fay Sharpe Fagan Minnich & McKee LLP
Patel Kanjibhai
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