发明名称 |
Hybrid digital watermarking for video authentication |
摘要 |
A hybrid digital watermarking system for video authentication includes an authenticated acquisition subsystem for digitally watermarking video data and a video management subsystem in signal communication with the authenticated acquisition subsystem for verifying the digitally watermarked video data, where the authenticated acquisition subsystem may include a watermarking device for applying each of an identity signature and a control signature to the video data within a hybrid digital watermark, and the hybrid digital watermark may achieve progressively varying robustness by means of error-correcting signature coding and/or rate-distortion guided bit embedding.
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申请公布号 |
US2004131184(A1) |
申请公布日期 |
2004.07.08 |
申请号 |
US20030717069 |
申请日期 |
2003.11.19 |
申请人 |
MY EZ COMMUNICATIONS, LLC. |
发明人 |
WU ZHENYU;YAN XIAO-HONG |
分类号 |
H04N5/913;(IPC1-7):H04N7/167 |
主分类号 |
H04N5/913 |
代理机构 |
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