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In this paper, an efficient video encryption scheme is proposed for protecting H.264 bitstream. The issues on the compressed domain video encryption have been pointed out and fully addressed. In the proposed scheme, only the most significant bits for video reconstruction in H.264 bitstream are extracted and encrypted, to optimize the trade-off between security level and computational complexity. For...
Multimedia information security has become a research hot topic in recent years. In this paper, an object-based unequal encryption method for H.264 compressed surveillance videos is proposed on the basis of bit-sensitivity analysis of bitstream. In the proposed method, moving object detection and segmentation is performed first, thus location information of the objects can be directly extracted from...
This paper presents a novel method for protecting H.264/AVC streaming. The issues on the compression domain video encryption have been pointed out and fully addressed. To optimize the tradeoff between security level and computational complexity, only the most significant bits for reconstructed video quality in H.264/AVC streaming are extracted and encrypted, including the codewords of intra-prediction...
In this paper, the bit-sensitivity of H.264 bitstream has been studied firstly, to determine the most significant bits for video reconstruction. On this basis, an efficient video encryption scheme in H.264 compressed domain is presented. In the proposed scheme, the most significant bits in H.264 bitstream are directly extracted to be encrypted, including the codewords of intra-prediction modes, motion...
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