Commutative Encryption and Watermarking in Video Compression
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'...
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| Published in: | IEEE transactions on circuits and systems for video technology Vol. 17; no. 6; pp. 774 - 778 |
|---|---|
| Main Authors: | , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
New York, NY
IEEE
01.06.2007
Institute of Electrical and Electronics Engineers The Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subjects: | |
| ISSN: | 1051-8215, 1558-2205 |
| Online Access: | Get full text |
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| 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 |
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| AbstractList | 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) coefficientsa signs are encrypted, while DCT coefficientsa 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 contentas 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. 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 |
| Author | Zhongxuan Liu Haila Wang Zhen Ren Shiguo Lian |
| Author_xml | – sequence: 1 givenname: Shiguo surname: Lian fullname: Lian, Shiguo – sequence: 2 givenname: Zhongxuan surname: Liu fullname: Liu, Zhongxuan – sequence: 3 givenname: Zhen surname: Ren fullname: Ren, Zhen – sequence: 4 givenname: Haila surname: Wang fullname: Wang, Haila |
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| Keywords | Video coding Performance evaluation Motion estimation Image processing Encryption video encryption Decryption video watermarking Algorithm Adaptive method Implementation Video signal processing partial encryption Confidentiality Manufacturing process Information protection Security of data Signal processing Discrete cosine transforms Growth from solution DRM Digital watermarking |
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| SubjectTerms | Algorithms Amplitudes Applied sciences Automatic voltage control Circuits Compressing Cryptography Discrete cosine transforms DRM Encryption Exact sciences and technology Image processing Information, signal and communications theory Mathematical analysis Miscellaneous partial encryption Protection Robustness Signal and communications theory Signal processing Signal processing algorithms Telecommunications and information theory Vectors (mathematics) Video coding Video compression video encryption Video signal processing video watermarking Watermarking |
| Title | Commutative Encryption and Watermarking in Video Compression |
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