Invention Grant
- Patent Title: Document page segmentation in optical character recognition
- Patent Title (中): 光学字符识别中的文档页面分割
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Application No.: US12720943Application Date: 2010-03-10
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Publication No.: US08509534B2Publication Date: 2013-08-13
- Inventor: Sasa Galic , Bogdan Radakovic , Nikola Todic
- Applicant: Sasa Galic , Bogdan Radakovic , Nikola Todic
- Applicant Address: US WA Redmond
- Assignee: Microsoft Corporation
- Current Assignee: Microsoft Corporation
- Current Assignee Address: US WA Redmond
- Main IPC: G06K9/36
- IPC: G06K9/36

Abstract:
Page segmentation in an optical character recognition process is performed to detect textual objects and/or image objects. Textual objects in an input gray scale image are detected by selecting candidates for native lines which are sets of horizontally neighboring connected components (i.e., subsets of image pixels where each pixel from the set is connected with all remaining pixels from the set) having similar vertical statistics defined by values of baseline (the line upon which most text characters “sit”) and mean line (the line under which most of the characters “hang”). Binary classification is performed on the native line candidates to classify them as textual or non-textual through examination of any embedded regularity. Image objects are indirectly detected by detecting the image's background using the detected text to define the background. Once the background is detected, what remains (i.e., the non-background) is an image object.
Public/Granted literature
- US20110222769A1 DOCUMENT PAGE SEGMENTATION IN OPTICAL CHARACTER RECOGNITION Public/Granted day:2011-09-15
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