Feature-based reverse modeling strategies
Feature-based reverse modeling strategies
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DOI：
10.1016/j.cad.2005.12.002
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发表时间：
2006-05-01
影响因子：
4.3
通讯作者：
Shi, Xiquan
中科院分区：
文献类型：
--
作者：
Ke, Yinling;Fan, Shuqian;Shi, Xiquan
本文提出了基于截面特征和基于表面特征的两种集成解决方案，用于在不使用三角剖分的情况下对工业部件从点云到表面进行建模。在基于截面特征的策略中，引入了切片、曲线特征识别和约束拟合。该策略强调逆向工程中从2D到3D的高级特征架构模式。基于表面特征的策略依赖于微分几何属性估计和多种特征提取技术。提出了基于4D Shepard曲面的属性估计、对称面提取、二次曲面识别与优化、挤压面与旋转面提取、基于概率统计理论的混合特征提取等方法和算法。可靠的三维特征完美地构成了B-rep模型的有效基底。所有算法均在浙江大学开发的逆向工程软件RE-SOFT中实现。所提出的策略可以准确地捕捉原始设计意图，方便地完成逆向建模过程。典型的工业组件被用来说明我们基于特征的策略的验证。(C) 2006 Elsevier Ltd版权所有。
We presented two integrated solution schemes, sectional feature based strategy and surface feature based strategy, for modeling industrial components from point cloud to surfaces without using triangulation. For the sectional feature based strategy, slicing, curve feature recognition and constrained fitting are introduced. This strategy emphasizes the advanced feature architecture patterns from 2D to 3D in reverse engineering. The surface feature based strategy relies on differential geometric attributes estimation and diverse feature extraction techniques. The methods and algorithms such as attributes estimation based on 4D Shepard surface, symmetry plane extraction, quadric surface recognition and optimization, extruded and rotational surface extraction, and blend feature extraction with probability and statistic theory are proposed. The reliable three-dimensional feature fabricated the valid substratum of B-rep model faultlessly. All the algorithms are implemented in RE-SOFT, a reverse engineering software developed by Zhejiang University. The proposed strategies can be used to capture the original design intention accurately and to complete the reverse modeling process conveniently. Typical industrial components are used to illustrate the validation of our feature-based strategies. (C) 2006 Elsevier Ltd. All rights reserved.