摘要
针对目前三角网格简化算法在低分辨率的状态下往往丢失模型重要几何特征,从而导致视觉上的失真问题,提出了一种改进的边折叠三角网格简化算法。在Garland算法基础上引入了近似曲率的概念,并将其加入到二次误差测度中,使得二次误差测度在能够度量距离偏差的情况下,能够反映模型局部表面几何变化。实验结果表明改进的算法有效保持了模型的细节特征,简化效果更好。
To reserve more important shape features in the low-level model,an improved edge-collapse triangle mesh simplification algorithm was presented.On the basis of Garland s simplification algorithm,the concept of similar curvature was introduced and embedded into the original Garland s quadric error metric,so that the metric can not only measure distance error but also reflect geometric variations of local surface.The experimental results show that the improved algorithm effectively retains the detail character...
出处
《计算机应用》
CSCD
北大核心
2009年第3期729-731,816,共4页
journal of Computer Applications
基金
国家自然科学基金资助项目(0873006)
北京市教育委员会科技发展计划重点项目(KZ200710028014)
北京市自然科学基金资助项目(4082009)
关键词
网格简化
边折叠
二次误差测度
近似曲率
形状特征
mesh simplification
edge-collapse
quadric error metric
similar curvature
shape feature
