Invention Grant
- Patent Title: Embedding and detecting hidden information
- Patent Title (中): 嵌入和检测隐藏信息
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Application No.: US12050055Application Date: 2008-03-17
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Publication No.: US08311265B2Publication Date: 2012-11-13
- Inventor: Donglin Wang , Shutian Yin , Yunming Zhang , Ningsheng Liu , Yuansong Liang , Changwei Liu , De Ouyang , Peng Gao , Yongzhi Lou
- Applicant: Donglin Wang , Shutian Yin , Yunming Zhang , Ningsheng Liu , Yuansong Liang , Changwei Liu , De Ouyang , Peng Gao , Yongzhi Lou
- Applicant Address: CN Beijing
- Assignee: Beijing Sursen International Information Tech Co.
- Current Assignee: Beijing Sursen International Information Tech Co.
- Current Assignee Address: CN Beijing
- Agency: Goodwin Procter LLP
- Agent David Xue
- Priority: CN200510103221 20050916; WOPCT/CN2006/002409 20060915
- Main IPC: G06K9/00
- IPC: G06K9/00
Abstract:
A novel method is disclosed for embedding hidden information in a document comprising characters, including: determining hidden information to be embedded in each class of layout transformation respectively; acquiring a code sequence for each class of layout transformation by coding the hidden information to be embedded in the class of layout transformation; performing layout transformation on characters from the document according to the acquired code sequence for each class of layout transformation respectively.
Public/Granted literature
- US20080310672A1 EMBEDDING AND DETECTING HIDDEN INFORMATION Public/Granted day:2008-12-18
Information query
