View dependent 3-D mesh coding by fast, view image quality optimized, region based rate allocation

In this paper, the problem of rate allocation to the surface regions of 3-D meshes for view dependent compression of their geometries is addressed. The view image MSE based distortion measure is first experimentally shown to yield higher decoded view image Peak-Signal-To-Noise-Ratio (PSNR) than the distortion measures previously proposed in the literature when used in the framework for optimal rate allocation to regions. In place of the optimal rate allocation method, a logarithmic search rate allocation method is also proposed for use with the view image MSE based measure that requires far fewer view image renderings and thereby offers lower complexity in return for a small drop in coding performance.