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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Vydáno v:IEEE transactions on circuits and systems for video technology Ročník 17; číslo 6; s. 774 - 778
Hlavní autoři: Lian, Shiguo, Liu, Zhongxuan, Ren, Zhen, Wang, Haila
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York, NY IEEE 01.06.2007
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
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
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
ISSN:1051-8215, 1558-2205
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Popis
Shrnutí: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
Bibliografie:ObjectType-Article-2
SourceType-Scholarly Journals-1
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ISSN:1051-8215
1558-2205
DOI:10.1109/TCSVT.2007.896635