Efficient Compression-Jointed Quality Controllable Scrambling Method for H.264/SVC

10.6633/IJNS.201505.17(3).07

Ci-Lin Li；Chih-Yang Lin；Tzung-Her Chen

Compression-jointed encryption ； quality control ； scalable video coding (SVC) ； video encryption

International Journal of Network Security

17卷3期（2015 / 05 / 01）

290 - 297

英文

H.264/Scalable video coding (SVC) is an ongoing standard that supports adaptation of a heterogeneous network by spatial, temporal, and quality scalability. Although H.264/SVC has drawn much attention in academia and industry, there has been little research related to H.264/SVC scrambling reported in the literature. In this study, a quality controllable scrambling scheme is proposed for H.264/SVC, in which the H.264/SVC compression processes are skillfully scrambled. Thus, the users can decide the quality of the scrambled video for different applications. In addition, the proposed scheme shows that the computation and compression overheads are negligible since only the sensitive data, including motion vector difference, the intra prediction mode, and the residual coefficients, are encrypted. The experimental results demonstrate the feasibility of the proposed scheme by four requirements: low bit-rate, low computational complexity, format compliance, and preservation of video quality.