US Patent 7409556 Hybrid digital watermarking for video authentication
Patent 7409556 was granted and assigned to MY EZ Communications LLC on August, 2008 by the United States Patent and Trademark Office.
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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.
US Patent 07409556 Hybrid digital watermarking for video authentication US Patent 7409556 Hybrid digital watermarking for video authentication
US Patent 07409556 Hybrid digital watermarking for video authentication
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