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- W2134071212 abstract "A scheme is proposed to implement commutative video encryption and watermarking during advanced video coding process. In H.264/AVC compression, the intra-prediction mode, motion vector difference and discrete cosine transform (DCT) coefficients' signs are encrypted, while DCT coefficients' amplitudes are watermarked adaptively. To avoid that the watermarking operation affects the decryption operation, a traditional watermarking algorithm is modified. The encryption and watermarking operations are commutative. Thus, the watermark can be extracted from the encrypted videos, and the encrypted videos can be re-watermarked. This scheme embeds the watermark without exposing video content's confidentiality, and provides a solution for signal processing in encrypted domain. Additionally, it increases the operation efficiency, since the encrypted video can be watermarked without decryption. These properties make the scheme a good choice for secure media transmission or distribution" @default.
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- W2134071212 date "2007-06-01" @default.
- W2134071212 modified "2023-10-10" @default.
- W2134071212 title "Commutative Encryption and Watermarking in Video Compression" @default.
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- W2134071212 doi "https://doi.org/10.1109/tcsvt.2007.896635" @default.
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