Information hiding scheme for 3D model based on profile analysis

doi:10.11772/j.issn.1001-9081.2016.03.642

Journal of Computer Applications ›› 2016, Vol. 36 ›› Issue (3): 642-646.DOI: 10.11772/j.issn.1001-9081.2016.03.642

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Information hiding scheme for 3D model based on profile analysis

REN Shuai¹, SHI Fangxia², ZHANG Tao³

1. School of Information Engineering, Chang'an University, Xi'an Shaanxi 710064, China;
2. School of Information Engineering, Xizang Minzu University, Xianyang Shaanxi 712082, China;
3. School of Electronic and Control Engineering, Chang'an University, Xi'an Shaanxi 710064, China

Received:2015-08-04 Revised:2015-10-12 Online:2016-03-10 Published:2016-03-17
Supported by:
This work is partially supported by National Natural Science Foundation of China (61402052), Natural Science Basic Research Plan in Shaanxi Province of China (2014JM2-6105), China Postdoctoral Science Foundation (2015M572510), Shaanxi Province Postdoctoral Science Foundation, [BP)]Natural Science Foundation of Tibet (2015ZR-14-20), The Special Fund for Basic Scientific Research of Central Colleges of Chang'an University (310832151092).

基于三维模型轮廓解析的信息隐藏算法

任帅¹, 石方夏², 张弢³

1. 长安大学信息工程学院, 西安 710064;
2. 西藏民族大学信息工程学院, 陕西咸阳 712082;
3. 长安大学电子与控制工程学院, 西安 710064

通讯作者: 任帅
作者简介:任帅(1982-),男,山西太原人,副教授,博士,CCF会员,主要研究方向:信息隐藏、数字水印、信息安全风险评估;石方夏(1972-),男,陕西咸阳人,副教授,硕士,主要研究方向:信息隐藏、数字水印;张弢(1984-),女,山西吕梁人,副教授,博士,主要研究方向:信息隐藏、数字水印。
基金资助:
国家自然科学基金资助项目(61402052);陕西省自然科学基础研究计划项目(2014JM2-6105);中国博士后科学基金资助项目(2015M572510);西藏自治区自然科学基金资助项目(2015ZR-14-20);中央高校基本科研业务费专项资金资助项目(310832151092)。

Abstract

Abstract: Aiming at the confidential communication based on information hiding technology, an information hiding algorithm using interval analysis of values on Z-axis for the vertical profile of three-dimensional (3D) models was proposed. First, the 3D model was scaled and rotated disproportionately according to fixed size and angle respectively, and the vertical profile could be obtained by horizontal mapping. Second, the vertical profile was mapped into the two-dimensional coordinate system and the values on the vertical axis could be determined using a fixed step size. Last, the vertical values were converted into binary numbers with interval constraints according to the fixed threshold. By disproportionate scaling with fixed size, the algorithm could be effective against the scaling attack. According to the fixed rotated angle and step size, the data could be embedded in redundancy of the whole model and the algorithm could be robust against cutting. The experimental results illustrate that this algorithm is of strong robustness against the random noise under 0.2%, re-meshing and non-uniform simplification.

Key words: information hiding, three-dimensional model, two-dimensional mapping, profile analysis

摘要： 针对基于信息隐藏技术的隐秘通信要求,提出利用模型纵向轮廓Z轴值的区间解析三维模型信息隐藏算法。算法首先将三维模型按固定大小与角度进行非比例缩放和旋转,经过水平映射得出纵向轮廓;其次将轮廓映射于二维坐标中,并进行固定步长的纵向取值;最后将取值结果按照固定阈值进行区间约束,转换为0/1数据。算法采用固定大小进行非比例缩放,可有效抵御缩放攻击;按照固定旋转角度和固定步长进行冗余嵌入,数据嵌入点存在于整个三维模型中,对剪切有很强的鲁棒性;另外,实验结果显示,算法对0.2%以下的随机加噪、重网格以及非均匀简化都具有较好的鲁棒性。

关键词: 信息隐藏, 三维模型, 二维映射, 轮廓解析

CLC Number:

TN918

REN Shuai, SHI Fangxia, ZHANG Tao. Information hiding scheme for 3D model based on profile analysis[J]. Journal of Computer Applications, 2016, 36(3): 642-646.

任帅, 石方夏, 张弢. 基于三维模型轮廓解析的信息隐藏算法[J]. 计算机应用, 2016, 36(3): 642-646.

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Information hiding scheme for 3D model based on profile analysis

基于三维模型轮廓解析的信息隐藏算法

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