发明申请
- 专利标题: EFFICIENT AND SECURE FORENSIC MARKING IN COMPRESSED DOMAIN
- 专利标题(中): 压缩域中的有效和安全的威信标记
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申请号: US13567792申请日: 2012-08-06
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公开(公告)号: US20120300977A1公开(公告)日: 2012-11-29
- 发明人: Rade Petrovic , Dai Yang
- 申请人: Rade Petrovic , Dai Yang
- 申请人地址: US CA San Diego
- 专利权人: VERANCE CORPORATION
- 当前专利权人: VERANCE CORPORATION
- 当前专利权人地址: US CA San Diego
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
Methods, devices, and computer program products enable the embedding of forensic marks in a host content that is in compressed domain. These and other features are achieved by preprocessing of a host content to provide a plurality of host content versions with different embedded watermarks that are subsequently compressed. A host content may then be efficiently marked with forensic marks in response to a request for such content. The marking process is conducted in compressed domain, thus reducing the computational burden of decompressing and re-compressing the content, and avoiding further perceptual degradation of the host content. In addition, methods, devices and computer program products are disclosed that obstruct differential analysis of such forensically marked content.
公开/授权文献
- US08346567B2 Efficient and secure forensic marking in compressed domain 公开/授权日:2013-01-01