发明申请
- 专利标题： MULTI-BIT INFORMATION HIDING USING OVERLAPPING SUBSETS
- 专利标题（中）： 使用重叠子码隐藏的多位信息
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申请号： US13524117申请日： 2012-06-15
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公开(公告)号： US20130336409A1公开(公告)日： 2013-12-19
- 发明人: Dake HE , Jing WANG , Xiang YU
- 申请人： Dake HE , Jing WANG , Xiang YU
- 申请人地址： CA Waterloo
- 专利权人： Research In Motion Limited
- 当前专利权人： Research In Motion Limited
- 当前专利权人地址： CA Waterloo
- 主分类号： H04N7/26
- IPC分类号： H04N7/26
摘要：
Methods and devices for reconstructing coefficient levels from a bitstream of encoded video data for a coefficient group in a transform unit. Sign bits are hidden in the parity of partially overlapping subsets of a set of coefficients. This enables the hiding of multiple sign bits per coefficient group. Other information bits may be hidden instead of sign bits in some cases.
公开/授权文献
- US09294779B2 Multi-bit information hiding using overlapping subsets 公开/授权日：2016-03-22
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