Invention Grant
- Patent Title: Background-based image segmentation
- Patent Title (中): 基于背景的图像分割
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Application No.: US09977186Application Date: 2001-10-12
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Publication No.: US06973213B2Publication Date: 2005-12-06
- Inventor: Zhigang Fan , Hui Cheng
- Applicant: Zhigang Fan , Hui Cheng
- Applicant Address: US CT Stamford
- Assignee: Xerox Corporation
- Current Assignee: Xerox Corporation
- Current Assignee Address: US CT Stamford
- Agency: Fay, Sharpe, Fagan, Minnich & McKee, LLP
- Main IPC: G06T11/60
- IPC: G06T11/60 ; G06T5/00 ; G06T7/40 ; H04N1/387 ; G06K9/34

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.
Public/Granted literature
- US20030072487A1 Background-based image segmentation Public/Granted day:2003-04-17
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