发明名称 |
Positionally encoded document image analysis and labeling |
摘要 |
Disclosed embodiments of the invention relate to analyzing document images, which contain positionally encoded information, such as a maze-pattern watermark, and labeling the images based on a degree to which the document's content, such as text, occludes the position-encoding information. Depending on the degree of such occlusion, it may not be possible to extract enough position-encoding bits from a camera-captured image of the document to determine the camera-captured image's location within the document. An analysis-and-labeling module receives, as input, image data output by an image-generation-and-capturing module and off-line training data; performs analysis-and-labeling processing; and outputs image-label information. The results of document-analysis-and-labeling processing may be used for efficiently determining a location of a camera-captured image within a positionally encoded document. |
申请公布号 |
EP1553485(B1) |
申请公布日期 |
2015.05.20 |
申请号 |
EP20050000084 |
申请日期 |
2005.01.04 |
申请人 |
MICROSOFT TECHNOLOGY LICENSING, LLC |
发明人 |
WANG, JIAN;CHEN, LIYONG;DANG, YINGNONG |
分类号 |
G06F3/0354;G06T1/00;G06F3/03;G06F3/033;G06F3/041;G06F3/042;G06F17/00;G06F17/21;H04N1/387 |
主分类号 |
G06F3/0354 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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