关键词: 网格简化, 边折叠, 预测-校正, 面积, 二次误差测度（QEM）算法

Abstract: A new mesh simplification algorithm based on edge collapse is proposed. Taking the local features into consi-deration, this algorithm adds the area factor into object function together with quadric error distance. This paper also proposes a predictor-corrector method for reducing the accumulative error during the edge collapse procedure. Experimental results show that this algorithm can significantly improve the simplification quality of the model. Especially for those models with shape edges and curves, the simplified model can maintain the original features better.

Key words: mesh simplification, edge collapse, predictor-corrector method, area, Quadric Error Metrics（QEM） algorithm