TY - GEN
T1 - Perceptual video encryption using multiple 8x8 transforms in H.264 and MPEG-4
AU - Au Yeung, Siu Kei
AU - Zhu, Shuyuan
AU - Zeng, Bing
PY - 2011
Y1 - 2011
N2 - It has been demonstrated in our earlier works [1, 2] that perceptual video encryption can be effectively achieved by using multiple transforms where the block size 4×4 has been considered. In this paper, we study the extension to the transforms of size 8×8. In this case, a more complex flow-graph structure is resulted, thus leading to a larger room for encryption. In addition, special technique on controlling the encrypted video quality is presented by carefully selecting the number of rotations in the flow-graph structure of an 8×8 transform. The proposed scheme is first evaluated using the high profile of H.264. It is then further tested for the MPEG-4 standard that completely relies on 8×8 transform. Both cases show that promising results can be achieved with our proposed scheme.
AB - It has been demonstrated in our earlier works [1, 2] that perceptual video encryption can be effectively achieved by using multiple transforms where the block size 4×4 has been considered. In this paper, we study the extension to the transforms of size 8×8. In this case, a more complex flow-graph structure is resulted, thus leading to a larger room for encryption. In addition, special technique on controlling the encrypted video quality is presented by carefully selecting the number of rotations in the flow-graph structure of an 8×8 transform. The proposed scheme is first evaluated using the high profile of H.264. It is then further tested for the MPEG-4 standard that completely relies on 8×8 transform. Both cases show that promising results can be achieved with our proposed scheme.
KW - H.264
KW - MPEG-4 standards
KW - Multiple 8×8 transforms
KW - Perceptual video encryption
UR - http://www.scopus.com/inward/record.url?scp=80051662638&partnerID=8YFLogxK
U2 - 10.1109/ICASSP.2011.5946976
DO - 10.1109/ICASSP.2011.5946976
M3 - Conference contribution
AN - SCOPUS:80051662638
SN - 9781457705397
T3 - ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings
SP - 2436
EP - 2439
BT - 2011 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011 - Proceedings
T2 - 36th IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2011
Y2 - 22 May 2011 through 27 May 2011
ER -