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Mathematical Problems in Engineering
Volume 2014, Article ID 241093, 7 pages
http://dx.doi.org/10.1155/2014/241093
Research Article

Hamming Code Based Watermarking Scheme for 3D Model Verification

1Department of Information Management, Hsiuping University of Science and Technology, 11 Gongye Road, Dali District, Taichung City 412, Taiwan
2Department of Computer Science and Engineering, National Chung-Hsing University, 250 Kuo-Kuang Road, Taichung 402, Taiwan
3Department of Digital Living Innovation, Nan Kai University of Technology, 568 Chung-Cheng Road, TsaoTun 542, Nantou County, Taiwan

Received 25 February 2014; Accepted 13 April 2014; Published 30 April 2014

Academic Editor: Her-Terng Yau

Copyright © 2014 Jen-Tse Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Due to the explosive growth of the Internet and maturing of 3D hardware techniques, protecting 3D objects becomes a more and more important issue. In this paper, a public hamming code based fragile watermarking technique is proposed for 3D objects verification. An adaptive watermark is generated from each cover model by using the hamming code technique. A simple least significant bit (LSB) substitution technique is employed for watermark embedding. In the extraction stage, the hamming code based watermark can be verified by using the hamming code checking without embedding any verification information. Experimental results shows that 100% vertices of the cover model can be watermarked, extracted, and verified. It also shows that the proposed method can improve security and achieve low distortion of stego object.