CABAC Based H.264 Video Perceptual Encryption Algorithm with Adjustable Visual Quality

BAI Sen; GUO Yu; ZHAO Bo; DAI Qinfang

doi:10.11999/JEIT151478

Volume 38 Issue 10

Oct. 2016

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Article Navigation > Journal of Electronics & Information Technology > 2016 > 38(10): 2582-2589

BAI Sen, GUO Yu, ZHAO Bo, DAI Qinfang. CABAC Based H.264 Video Perceptual Encryption Algorithm with Adjustable Visual Quality[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2582-2589. doi: 10.11999/JEIT151478

Citation:

BAI Sen, GUO Yu, ZHAO Bo, DAI Qinfang. CABAC Based H.264 Video Perceptual Encryption Algorithm with Adjustable Visual Quality[J]. Journal of Electronics & Information Technology, 2016, 38(10): 2582-2589. doi: 10.11999/JEIT151478

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CABAC Based H.264 Video Perceptual Encryption Algorithm with Adjustable Visual Quality

doi: 10.11999/JEIT151478 cstr: 32379.14.JEIT151478

1.
(Chongqing Communication Institute, Chongqing 400035, China)
2.

Funds:

The National Natural Science Foundation of China (61272043), Basic Frontier Project of Chongqing (cstc2013 jjB40009), Chongqing Enhancement Project on Research Development Base (cstc2014pt-sy40003)

Received Date: 2015-12-29
Rev Recd Date: 2016-05-30
Publish Date: 2016-10-19

Abstract

Abstract

In Video on Demand (VoD) applications it is desired that the encrypted multimedia data are still partially perceptible after encryption in order to stimulate the purchase of the high-quality versions of the multimedia products. This perceptual encryption requires specific algorithms for encrypting the video data. In this paper, a Context-based Adaptive Binary Arithmetic Coding (CABAC) video perceptual encryption scheme is designed. The video quality of this encryption scheme is controllable. The important syntax elements and sensitive coded elements are chosen to encrypt using mathematical XOR operations with stream ciphers generated by 2D hyper chaos system. The encryption scheme is composed of encrypting Motion Vector Differences (MVD) sign, non-zero coefficients sign and significant_coeff_flag. Theoretical analysis and experimental results show that the proposed scheme has no impact on bit rate. With the 7 encoding time increasing, the video quality can be controlled by the change of the quality factor, which meets the requirement of the video perceptual encryption.
- Video encryption,
- Perceptual encryption,
- H.264/AVC,
- Quality control

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References(22)

References

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