Efficient spherical parametrization using progressive optimization

Conference Name:1st International Conference on Computational Visual Media, CVM 2012. Conference Address: Beijing, China. Time:November 8, 2012 - November 10, 2012.ACM SIGGRAPH; China Computer Federation; Tsinghua UniversitySpherical mapping is a key enabling technology in modeling and processing genus-0 close surfaces. A closed genus-0 surface can be seamless parameterized onto a unit sphere. We develop an effective progressive optimization scheme to compute such a parametrization, minimizing a nonlinear energy balancing angle and area distortions. Among all existing state-of-the-art spherical mapping methods, the main advantage of our spherical mapping are two-folded: (1) the algorithm converges very efficiently, therefore it is suitable for handling huge geometric models, and (2) it generates bijective and lowly distorted mapping results. 漏 2012 Springer-Verlag