一种保持视觉特征的三维几何模型简化算法

针对三维模型简化中保留细节特征的要求,提出了一种基于视觉特征保持的三维几何模型简化算法.采用半边折叠操作,综合考虑了网格模型中半边的几何重要性和变化误差,并将其作为各半边的折叠代价来确定模型中边的折叠顺序,在模型简化后又利用顶点"微调"法对简化模型进行了局部视觉效果修正.实验研究结果表明:本文提出的三维几何模型简化算法能有效地保留模型的细节特征,并能显著改善模型因简化产生的形变,是一种简单、有效的模型简化算法.

3D Geometric Model Simplification Method Based on Preserved Vision Feature

To satisfy the requirement of preserving details in equipment geometric model simplification, a novel 3D geometric model simplification method based on preserved vision feature was put forward. In the algorithm, a new error metric rule based on the geometric importance (including the length of the edge and the vertical curvature) and change error of a half-edge was proposed to determine the order of edge collapse in 3D geometric model simplification. And then, a vertex micro-adjusting algorithm was adopted ...