A steganalytic algorithm for 3D polygonal meshes

Yang, Ying; Pintus, Ruggero; Rushmeier, Holly; Ivrissimtzis, Ioannis

Abstract

We propose a steganalytic algorithm for watermarks embedded by Cho et al.'s mean-based algorithm [1]. The main observation is that while in a clean model the means of Cho et al.'s normalized histogram bins are expected to follow a Gaussian distribution, in a marked model their distribution will be bimodal. The proposed algorithm estimates the number of bins through an exhaustive search and then the presence of a watermark is decided by a tailor made normality test. We also propose a modification of Cho et al.'s algorithm which is more resistant to the steganalytic attack and offers an improved robustness/capacity trade-off.

Citation

Yang, Y., Pintus, R., Rushmeier, H., & Ivrissimtzis, I. (2014). A steganalytic algorithm for 3D polygonal meshes. In ICIP 2014 : 2014 IEEE International Conference on Image Processing (ICIP) (4782-4786). https://doi.org/10.1109/icip.2014.7025969

• Conference Name: 2014 IEEE International Conference on Image Processing (ICIP)
• Conference Location: Paris, France
• Acceptance Date: May 30, 2014
• Publication Date: Oct 1, 2014
• Deposit Date: Apr 15, 2016
• Publicly Available Date: Apr 19, 2016
• Pages: 4782-4786
• Series ISSN: 1522-4880
• Book Title: ICIP 2014 : 2014 IEEE International Conference on Image Processing (ICIP).
• DOI: https://doi.org/10.1109/icip.2014.7025969