Reversible Data Hiding Based on Run-Level Coding in H.264/AVC Video Streams  

作　　者：Yi Chen Hongxia Wang Xuyun Zhang 

机构地区：[1]School of Information Science and Technology,Southwest Jiaotong University,Chengdu,611756,China [2]College of Cybersecurity,Sichuan University,Chengdu,610064,China [3]Department of Electrical,Computer and Software Engineering,University of Auckland,Auckland,1023,New Zealand

出　　处：《Computers, Materials & Continua》2020年第5期911-922,共12页计算机、材料和连续体（英文）

基　　金：This work was supported by the National Natural Science Foundation of China(NSFC)under the grant No.61972269;the Fundamental Research Funds for the Central Universities under the grant No.YJ201881;Doctoral Innovation Fund Program of Southwest Jiaotong University under the grant No.DCX201824.

摘　　要：This paper presents a reversible data hiding(RDH)method,which is designed by combining histogram modification(HM)with run-level coding in H.264/advanced video coding(AVC).In this scheme,the run-level is changed for embedding data into H.264/AVC video sequences.In order to guarantee the reversibility of the proposed scheme,the last nonzero quantized discrete cosine transform(DCT)coefficients in embeddable 4×4 blocks are shifted by the technology of histogram modification.The proposed scheme is realized after quantization and before entropy coding of H.264/AVC compression standard.Therefore,the embedded information can be correctly extracted at the decoding side.Peak-signal-noise-to-ratio(PSNR)and Structure similarity index(SSIM),embedding payload and bit-rate variation are exploited to measure the performance of the proposed scheme.Experimental results have shown that the proposed scheme leads to less SSIM variation and bit-rate increase.

关 键 词：Reversible data hiding run-level coding visual quality bit-rate increase H.264/AVC video streams 

分 类 号：TN9[电子电信—信息与通信工程]