Reversible Data Hiding Based on Run-Level Coding in H.264/AVC Video Streams |
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Authors: | Yi Chen Hongxia Wang Xuyun Zhang |
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Affiliation: | 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. |
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Abstract: | 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. |
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Keywords: | Reversible data hiding run-level coding visual quality bit-rate increase H 264/AVC video streams |
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