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H.265/HEVC video steganography method based on directional mapping and multi-region embedding.

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Title: H.265/HEVC video steganography method based on directional mapping and multi-region embedding.
Authors: XIE, Jiachen1, ZHANG, Xiang1 zhangxiang@nuist.edu.cn, FU, Daoyong1, HE, Ziwen1, LI, Ziqiang1
Source: Computer Engineering & Science / Jisuanji Gongcheng yu Kexue. May2026, Vol. 48 Issue 5, p854-864. 11p.
Subjects: MPEG (Video coding standard), Mathematical mappings, Video compression, Cryptography
Abstract: In recent years, video steganography for H.265/HEVC attracted considerable attention. Among them, video methods that employ prediction unit (PU) as embedding carriers have become a research focus in this field. Such methods achieve information hiding by designing mapping rules between secret messages and PU. However, since the embedding of secret information induces substantial modifications to the prediction units, their resistance to steganalysis is relatively weak. To address this issue, this paper proposes a H.265/HEVC video steganography method based on PU directional mapping and multi-region embedding. The proposed method first extracts the partition mode combinations of two adjacent PU from 8x8 and 16x16 coding unit (CU), and maps them to a two-dimensional coordinate through directional mapping. Then, for different PU partition mode combinations, a multi-region embedding strategy is further designed to achieve high-capacity adaptive steganography with minimal modification distortion, thereby enhancing the method's resistance to steganalysis. Experimental results demonstrate that the proposed method out-performs existing PU-based video steganography methods in terms of visual quality, bitrate control, and resistance to steganalysis. This method holds significant potential for applications in covert video communication. [ABSTRACT FROM AUTHOR]
Copyright of Computer Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: H.265/HEVC video steganography method based on directional mapping and multi-region embedding.
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  Data: <searchLink fieldCode="DE" term="%22MPEG+%28Video+coding+standard%29%22">MPEG (Video coding standard)</searchLink><br /><searchLink fieldCode="DE" term="%22Mathematical+mappings%22">Mathematical mappings</searchLink><br /><searchLink fieldCode="DE" term="%22Video+compression%22">Video compression</searchLink><br /><searchLink fieldCode="DE" term="%22Cryptography%22">Cryptography</searchLink>
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  Data: In recent years, video steganography for H.265/HEVC attracted considerable attention. Among them, video methods that employ prediction unit (PU) as embedding carriers have become a research focus in this field. Such methods achieve information hiding by designing mapping rules between secret messages and PU. However, since the embedding of secret information induces substantial modifications to the prediction units, their resistance to steganalysis is relatively weak. To address this issue, this paper proposes a H.265/HEVC video steganography method based on PU directional mapping and multi-region embedding. The proposed method first extracts the partition mode combinations of two adjacent PU from 8x8 and 16x16 coding unit (CU), and maps them to a two-dimensional coordinate through directional mapping. Then, for different PU partition mode combinations, a multi-region embedding strategy is further designed to achieve high-capacity adaptive steganography with minimal modification distortion, thereby enhancing the method's resistance to steganalysis. Experimental results demonstrate that the proposed method out-performs existing PU-based video steganography methods in terms of visual quality, bitrate control, and resistance to steganalysis. This method holds significant potential for applications in covert video communication. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: <i>Copyright of Computer Engineering & Science / Jisuanji Gongcheng yu Kexue is the property of Computer Engineering & Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3969/j.issn.1007-130X.2026.05.009
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      – Code: eng
        Text: English
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      – SubjectFull: Mathematical mappings
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      – SubjectFull: Cryptography
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              M: 05
              Text: May2026
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