关键词: 菱形编码, 信息隐藏, 高效视频编码(HEVC), 帧内预测, 失真漂移

Abstract: Abstract: In this paper, we focused on the intra frame video information hiding algorithm based on the new generation of High Efficiency Video Coding(HEVC) standard. In order to solve the problem that the existing algorithms have less capacity and high bit rate for HD and HD video, a HEVC video information hiding algorithm based on Diamond coding algorithm is proposed. In this algorithm, the prediction patterns of two adjacent 4×4 block prediction patterns are formed, and the features of the diamond coding are used to direct the pattern modulation and information embedding. At the same time, it would be encoded two times, the first time to retain the original platform coding division and the second time to achieve information hiding. The proposed algorithm could be adopted to restrain the distortion drift and improve the subjective and objective quality of video. The experimental results show that the peak signal-to-noise ratio(PSNR) loss is just about 0.03dB, the bit-rate increases by about 0.53%, and the embedding capacity is greatly improved. Meanwhile, the video subjective and objective quality can be guaranteed.

Key words: Keywords: diamond coding, information hiding, high efficiency video coding(HEVC), intra prediction, distortion drift?