一种基于OBJ三维模型纹理贴图的信息隐藏算法

doi:10.13190/j.jbupt.2018-129

北京邮电大学学报 ›› 2019, Vol. 42 ›› Issue (1): 22-27.doi: 10.13190/j.jbupt.2018-129

一种基于OBJ三维模型纹理贴图的信息隐藏算法

任帅, 王震, 徐振超, 苏东旭, 贺媛

长安大学信息工程学院, 西安 710064

收稿日期:2018-07-05 出版日期:2019-02-28 发布日期:2019-03-08
通讯作者: 王震(1993-),男,硕士生,E-mail:814924777@qq.com. E-mail:814924777@qq.com
作者简介:任帅(1982-),男,副教授,硕士生导师.
基金资助:
国家自然科学基金项目（61702050）

Information Hiding Scheme Based on Texture Mapping of 3D Model in OBJ Format

REN Shuai, WANG Zhen, XU Zhen-chao, SU Dong-xu, HE Yuan

School of Information Engineering, Chang'an University, Xi'an 710064, China

Received:2018-07-05 Online:2019-02-28 Published:2019-03-08

摘要/Abstract

摘要： 为改进三维模型信息隐藏的鲁棒性，提出了一种基于OBJ（3D模型文件格式）三维模型纹理贴图的信息隐藏算法.选取三维模型贴图进行多元数小波变换；运用奇异值分解理论进行静态系数提取；利用三维Arnold置乱和纹理映射算法对隐秘信息和静态系数进行融合与正交投影.实验结果表明，算法能显著提高线框渲染、顶点绘制、面片挤出和剪切等攻击的鲁棒性.

关键词: 信息隐藏, 多元数小波变换, 奇异值分解理论

Abstract: An information hiding algorithm based on texture mapping of one kind of the document formats of 3D models (OBJ) is proposed in order to improve the robustness. First, 3D model texture maps are transformed into multivariate wavelet form. Second, the singular value decomposition theory is used to extract the multivariate wavelet static coefficients. Last, the secret information and the above static coefficients are merged by multiplication using the three-dimensional Arnold scrambling and texture mapping algorithm, and the merged coefficients are operated by orthographic projection to form the embedding regions. The experiment results indicated that the robustness against some attacks such as wireframe rendering, vertex rendering, patch extrusion, and shearing was improved, and the feasibility of this method was acceptable.

Key words: information hiding, multiple wavelet transform, singular value decomposition theory

中图分类号:

TP309.2

任帅, 王震, 徐振超, 苏东旭, 贺媛. 一种基于OBJ三维模型纹理贴图的信息隐藏算法[J]. 北京邮电大学学报, 2019, 42(1): 22-27.

REN Shuai, WANG Zhen, XU Zhen-chao, SU Dong-xu, HE Yuan. Information Hiding Scheme Based on Texture Mapping of 3D Model in OBJ Format[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2019, 42(1): 22-27.

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一种基于OBJ三维模型纹理贴图的信息隐藏算法

Information Hiding Scheme Based on Texture Mapping of 3D Model in OBJ Format

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