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A survey of reversible data hiding based on HEVC video compression format

As effective information security method, reversible data hiding technique (RDH) could embed secret messages into a cover carrier in the reversible manner to achieve copyright protect and content authentication for various multimedia. Among them, recent HEVC video compression format is widely researched due to its high compression ratio. In the paper, a survey for HEVC based RDH is offered. According to our best knowledge, recent schemes could be mainly divided into three parts based on different criteria and mentioned as follows: (a) Different domains. How to build effective cover carriers in the HEVC coding framework for RDH is summarized, i.e., luminance DCT coefficients, motion vector and so on. (b) Various reversible data hiding (RDH) schemes. Many high-performance RDH methods, i.e., Difference Expansion (DE), Histogram Shifting (HS) and others, are adopted on above cover carrier to perform data hiding process. (c) Different demands. Based on different demands (namely target parameter), i.e., high capacity, low drift distortion and so on, the HEVC based RDH algorithms might be designed in different manners. Finally, based on above analysis, some perspectives and recommendations are presented to provide a better understanding on the trend of HEVC based RDH.