A method of H.264 video watermarking robust to attack on I and P frames by removal
| Autor: | Alexandra Afanasyeva, E. Linsky, Dmitry Ryzhov, Sergey I. Salishev, Denis Ivanov |
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| Rok vydání: | 2014 |
| Předmět: |
Motion compensation
Video post-processing business.industry Computer science ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Watermark Data_CODINGANDINFORMATIONTHEORY Transcoding computer.software_genre Video compression picture types Uncompressed video Discrete cosine transform Computer vision Entropy encoding Artificial intelligence business computer Digital watermarking Reference frame |
| Zdroj: | IPTA |
| DOI: | 10.1109/ipta.2014.7001951 |
| Popis: | The authors consider two new attacks on watermarked video specific to HD 60 fps H.264 High and Main profiles: selective I/P frames' removal and zeroing of residuals in B frames. We propose the method of embedding of a readable watermark for H.264 High Profile video robust to such attacks. The video stream is partially decoded removing entropy coding, then a watermark is embedded into low-frequency DCT residuals and motion vectors of B frames, so that it could be later extracted in an uncompressed domain even if almost all I and P frames were removed by the attacker during transcoding. The method is nonblind, robust to new attacks and to such attacks as transcoding, down-scale, and post processing filters due to robustness of low frequency DCT coefficients. The method consists of two stages: computationally intensive preprocessing stage performed to each video and low complexity payload embedding stage performed to each copy. So it is specifically suitable for fingerprinting of Video-on-Demand (VoD) systems, where a unique watermark should be embedded in each video's copy. |
| Databáze: | OpenAIRE |
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