Invention Grant
- Patent Title: Video watermarking using temporal analysis
- Patent Title (中): 视频水印使用时间分析
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Application No.: US11928300Application Date: 2007-10-30
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Publication No.: US08155375B2Publication Date: 2012-04-10
- Inventor: Ahmed Tewfik , Bin Zhu , Mitch Swanson
- Applicant: Ahmed Tewfik , Bin Zhu , Mitch Swanson
- Applicant Address: US MN St. Paul
- Assignee: Regents of the University of Minnesota
- Current Assignee: Regents of the University of Minnesota
- Current Assignee Address: US MN St. Paul
- Main IPC: H04K1/00
- IPC: H04K1/00

Abstract:
Methods of embedding and detecting watermarks in video use temporal analysis to compute temporal components of video from which the watermarks are embedded and detected. Temporal analysis, such as a temporal wavelet, is used to compute representations of static and dynamic portions of the video. For embedding, watermarks are computed from and/or adapted to the temporal components. For detecting, temporal properties are exploited to detect watermarks in the static and/or dynamic components. Temporal analysis also enables plural watermarks to be embedded at different levels of temporal resolution.
Public/Granted literature
- US20080226120A1 Video Watermarking Using Temporal Analysis Public/Granted day:2008-09-18
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