Edge Collapse Simplification Based on Weighted Quadric Error Metrics
Dehui Kong · Journal of Beijing University of Technology · 2007
After drastic simplification process,most of the existing simplification algorithms based on edge col- lapse do not preserve important shape features of the original model very well and lead to visual distortion. This paper presents two edge-collapse based algorithms using improved quadric error metrics.Two important degrees of a triangle are given and embedded into the original Garland's quadric error metrics,so that the metrics can not only measure distance error but also reflect geometric variations of local surface.The experi- mental results show that the novel algorithms can preserve quite a number of important shape features and re- duce visual distortion even after performing drastic level of simplification.