Invention Grant
- Patent Title: Extracting data from images
- Patent Title (中): 从图像中提取数据
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Application No.: US11944288Application Date: 2007-11-21
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Publication No.: US08031905B2Publication Date: 2011-10-04
- Inventor: Ali Zandifar , Che-Bin Liu , Jing Xiao
- Applicant: Ali Zandifar , Che-Bin Liu , Jing Xiao
- Applicant Address: JP Tokyo
- Assignee: Seiko Epson Corporation
- Current Assignee: Seiko Epson Corporation
- Current Assignee Address: JP Tokyo
- Main IPC: G06K9/00
- IPC: G06K9/00

Abstract:
Disclosed are embodiments of systems and methods for embedding and/or extracting data from images. In embodiments, an image may be segmented into regions, and characters or other image groups within a segmented region may be determined to be embedding sites. A data vector may be embedded into a set of corresponding ordered embedding sites by representing each data element as different intensity values assigned to the pixels within one portion of an embedding site relative to the pixels in another portion of the embedding site. In embodiments, embedded data may be extracted from an image by extracting and decoding a set of bit values from a set of identified and ordered embedding sites.
Public/Granted literature
- US20090129625A1 Extracting Data From Images Public/Granted day:2009-05-21
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