一种零高分辨率3D网格模型的信息隐藏算法

doi:10.11896/jsjkx.190800021

Computer Science ›› 2020, Vol. 47 ›› Issue (7): 328-334.doi: 10.11896/jsjkx.190800021

• Information Security • Previous Articles

Zero-high-resolution Information Hiding Algorithm for 3D Mesh Model

REN Shuai¹, WANG Meng¹, FAN Ao-xiong¹, GAO Ze¹, XU Jie¹, Shahzad KHURRAM¹, ZHANG Tao²

1 School of Information Engineering,Chang’an University,Xi’an 710064,China
2 School of Electronic and Control Engineering,Chang’an University,Xi’an 710064,China

Received:2019-08-04 Online:2020-07-15 Published:2020-07-16
About author:REN Shuai,born in 1982,Ph.D,associate professor,is a member of China Computer Federation.His main research interests include information hiding,information security risk assessment,information hiding theory and model.
WANG Meng,born in 1996,master,is a member of China Computer Federation.Her main research interests include information hiding technology and so on.
Supported by:
This work was supported by the National Natural Science Foundation of China (61702050),“Double Top-Class” Guidance Project for the Central Universities (300104292405),Special Infrastructure Project for the Reform and Construction of Postgraduate Education in 2019 (300103190640) and Innovation and Entrepreneurship Training Program for College Students (201910710079,201810710052,201810710060,201810710215,201810710224)

Abstract

Abstract: Aiming at weak anti-analysis of current information hiding algorithm for 3D mesh model,a zero-high-resolution information hiding algorithm was proposed.Firstly,multi-resolution analysis based on the improved half-fold mesh simplification algorithm is manipulated on mesh model to decompose it into High-layer,Mid-layer,Low-layer.Secondly,the feature vectors are extracted by concentric sphere segmentation in High-layer,and the feature points embedded in information are determined by calculating vertex saliency in Mid-layer.Thirdly,the highest bit of the eigenvalue is obtained circularly from the feature vector and then correlatedwith the encrypted information scrambled by Chebyshev to form the associated information.Finally,the associated information is embedded into the DCT transform AC coefficient of the feature point spherical coordinate r value using the piecewise mapping function.The algorithm hides the associated information constructed by feature vector of High-layer and scrambled information intothe affine transform invariant of robust feature points in Mid-layer with less than 15% energy,which is beneficial to the invisibility,robustness and anti-analysis of algorithm.The obvious changes of point and surface features are undetected by the first-order Laplacian smoothing steganalysis method,which means that the proposed algorithm is of good anti-analysis ability.

Key words: Anti-analysis ability, Concentric spherical segmentation, DCT transform, Half-folded mesh simplification, Zero-high-resolution information hiding

CLC Number:

TP309.2

REN Shuai, WANG Meng, FAN Ao-xiong, GAO Ze, XU Jie, Shahzad KHURRAM, ZHANG Tao. Zero-high-resolution Information Hiding Algorithm for 3D Mesh Model[J].Computer Science, 2020, 47(7): 328-334.

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