Efficient frequency domain video scrambling for content access control
MULTIMEDIA '99 Proceedings of the seventh ACM international conference on Multimedia (Part 1)
Scalable protection and access control in full scalable video coding
IWDW'06 Proceedings of the 5th international conference on Digital Watermarking
Visual security evaluation for video encryption
Proceedings of the international conference on Multimedia
Contribution of non-scrambled chroma information in privacy-protected face images to privacy leakage
IWDW'11 Proceedings of the 10th international conference on Digital-Forensics and Watermarking
No tradeoff between confidentiality and performance: an analysis on H.264/SVC partial encryption
CMS'12 Proceedings of the 13th IFIP TC 6/TC 11 international conference on Communications and Multimedia Security
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Present-day video surveillance systems are often required not to intrude upon the privacy of the general public. In this paper, we discuss a privacy-protected video surveillance system that makes use of the JPEG XR standard. This standard offers a low-complexity solution for the scalable coding of high-resolution images. To address privacy concerns, face regions are detected and subsequently scrambled in the transform domain, taking into account the spatial and quality scalability features of JPEG XR. A number of experiments were conducted in order to investigate the efficiency of our video surveillance system, considering bit stream overhead and security aspects.