Robust mesh watermarking

摘要

We describe a robust method for wateramrkign triangle meshes.Watermarkign provides a mechanism for copyright protection of digital media by embedding information identifyign the ovwner in the data.The bulk of the researhc on digital watermarks has focused on media such as images,video,audio,and text.Robust watermarks must be able to survive a variety of "attacks",including resizing,cropping,and filtering.For resilience to such attacks,recent watermarkign schemes employ a "spread-spectrum" approach- tyep transform the document ot hte frequency domain and perburb the coefficients of the perceptually most significant basis functions.We extend this spread-spectrum approach to work for the robusst watermarkign of arbitrary triange meshes.