Video digital fingerprints embedding based on timing sequence vibration and error correcting code and testing method thereof
2010
The invention relates to a method for embedding and detecting video digital fingerprints based on time sequence vibration and error correcting codes, and belongs to the technical field of video processing. The method comprises the following steps of: generating a user fingerprint curve, embedding the generated user fingerprint curve into a video by a frame shifting method, generating tracking fingerprints, and embedding the tracking fingerprints into the video further to obtain a video containing the tracking fingerprints; and extracting digital fingerprints in the video to be detected through non-blind detection, calculating the relevant parameters of an extracted fingerprint sequence by using error correcting code-based tracking fingerprint codes, and determining users corresponding to the fingerprints. By the method, curve fingerprints are designed based on the timing sequence vibration, so that video copy generated by conspiration does not have commercial value and the function ofprotecting copyrights is realized; and the tracking fingerprints are designed based on the error correcting codes, so that illegal diffusers can be tracked and the conspiration resistance of a digital fingerprint system is enhanced.
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