Title :
Uniform Selection of Vertices for Watermark Embedding in 3-D Polygon Mesh Using IEEE754 Floating Point Representation
Author :
Garg, Hitendra ; Khandelwal, Krishna Kr ; Gupta, Madhu ; Agrawal, Sanjay
Abstract :
In the proposed watermarking scheme, watermark is embedded by re-positioning some selected vertices. The selection of vertices for watermark embedding is based on the IEEE754 floating point representation of vertex normal of selected vertices. The selected vertices are re-positioned by displacing ρ component of (ρ,T,ø) spherical coordinate of vertices. The watermark information is embedded uniformly throughout the surface of cover mesh object. The watermarking schemes are designed to protect data by maintaining the quality of watermark object. The proposed algorithm is also evaluated against both distortion and distortion less attacks.
Keywords :
data protection; floating point arithmetic; mesh generation; watermarking; (ρ,T,ø) spherical vertices coordinate; 3D polygon mesh; IEEE754 floating point representation; cover mesh object surface; data protection; distortion attack; distortion less attacks; uniform vertices selection; watermark embedding scheme; watermark information; Authentication; Correlation; Distortion measurement; Robustness; Smoothing methods; Three-dimensional displays; Watermarking; 3-D Mesh Objects; Hausdorff distance; MD5; Objective measurement; RMS distance;
Conference_Titel :
Communication Systems and Network Technologies (CSNT), 2014 Fourth International Conference on
Conference_Location :
Bhopal
Print_ISBN :
978-1-4799-3069-2
DOI :
10.1109/CSNT.2014.165
