Background-based image segmentation

Details Background-based image segmentation Background-based image segmentation

2005-12-06

2005-12-06

Mehta, Bhavesh M. (Department: 2621)

Image analysis

Image segmentation

Distinguishing text from other regions

Reexamination Certificate

active

06973213

ABSTRACT:
A method for segmenting an image using a background-based segmentation process is provided. A document image (102) is low-pass filtered and decimated. The decimated image is processed at low resolution by a low-resolution segmentation (104) stage. Segmentation results include identification of a main background and one or more objects. Objects that cannot be classified in text or picture classes are further segmented into a local background and smaller objects. This process is reiterated until all objects are classified in text or picture classes. The results are overlaid on the image (102) during an original-resolution refinement (106) stage to refine the segmentation.

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patent: 6453074 (2002-09-01), Zheng
patent: 6504955 (2003-01-01), Oomura et al.

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