Mr. Tuo Shi Profile

Tuo Shi

at Indiana Univ-Purdue Univ at Indianapolis

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Proceedings Article | 16 February 2006 Paper

Selective encryption for H.264/AVC video coding

Tuo Shi, Brian King, Paul Salama

Proceedings Volume 6072, 607217 (2006) https://doi.org/10.1117/12.643184

KEYWORDS: Video, Video compression, Surface plasmons, Video coding, Image compression, Wavelets, Multimedia, Quantization, Information visualization, Image encryption

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Due to the ease with which digital data can be manipulated and due to the ongoing advancements that have brought us closer to pervasive computing, the secure delivery of video and images has become a challenging problem. Despite the advantages and opportunities that digital video provide, illegal copying and distribution as well as plagiarism of digital audio, images, and video is still ongoing. In this paper we describe two techniques for securing H.264 coded video streams. The first technique, SEH264Algorithm1, groups the data into the following blocks of data: (1) a block that contains the sequence parameter set and the picture parameter set, (2) a block containing a compressed intra coded frame, (3) a block containing the slice header of a P slice, all the headers of the macroblock within the same P slice, and all the luma and chroma DC coefficients belonging to the all the macroblocks within the same slice, (4) a block containing all the ac coefficients, and (5) a block containing all the motion vectors. The first three are encrypted whereas the last two are not. The second method, SEH264Algorithm2, relies on the use of multiple slices per coded frame. The algorithm searches the compressed video sequence for start codes (0x000001) and then encrypts the next N bits of data.

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