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19 August 2010Animated models coarsening with local area distortion and deformation degree control
In computer graphics applications, mesh coarsening is an important technique to alleviate the workload of visualization
processing. Compared to the extensive works on static model approximation, very little attentions have been paid to
animated models. In this paper, we propose a new method to approximate animated models with local area distortion and
deformation degree control. Our method uses an improved quadric error metric guided by a local area distortion
measurement as a basic hierarchy. Also, we define a deformation degree parameter to be embedded into the aggregated
quadric errors, so areas with large deformation during the animation can be successfully preserved. Finally, a mesh
optimization process is proposed to further reduce the geometric distortion for each frame. Our approach is fast, easy to
implement, and as a result good quality dynamic approximations with well-preserved sharp features can be generated at
any given frame.
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Shixue Zhang, Yuanhao Wu, Jinyu Zhao, "Animated models coarsening with local area distortion and deformation degree control," Proc. SPIE 7820, International Conference on Image Processing and Pattern Recognition in Industrial Engineering, 78200E (19 August 2010);