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首页> 外文会议>International confernce on computational science and its applications >Automated Scan Plan Generation Using STL Meshes for 3D Stripe-Type Laser Scanner
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Automated Scan Plan Generation Using STL Meshes for 3D Stripe-Type Laser Scanner

机译：自动扫描计划生成使用STL网格3D条带式激光扫描仪

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Reverse engineering and computer-aided inspection technologies play an important role in reducing the lead-time and improving the quality in the production of products containing complex and aesthetic surfaces. In this paper, we propose a laser scan planning system for complex freeform surfaces that is based on STL (ST ereoLithograph) meshes. The developed laser scan planning system consists of three steps and it is assumed that the original CAD model of the part exists. Firstly, the surface model is approximated by STL meshes. The meshes are generated considering the curvature of the model so that more vertices are sampled in high curvature regions. From the mesh model, the region for which the scanning will be performed is selected and the normal vector of each node point is estimated. Secondly, scan directions and regions are determined through the region growing method. Also, scan paths are generated by generating a minimum-bound rectangle of points to be scanned. Finally, the generated scan directions and paths are validated by checking optical constraints and the collision avoidance.
机译：逆向工程和计算机辅助检验技术在减少含铅和提高含有复合物和美学表面的产品中的质量方面发挥着重要作用。在本文中，我们提出了一种用于基于STL（STERITITHOR）网格的复杂自由形状的激光扫描计划系统。开发的激光扫描计划系统由三个步骤组成，假设部分的原始CAD模型存在。首先，表面模型由STL网格近似。考虑模型的曲率来产生网格，使得在高曲率区域中采样更多顶点。从网状模型中，选择扫描的区域，并且估计每个节点点的正常向量。其次，通过该区域生长方法确定扫描方向和区域。此外，通过生成要扫描的点的最小绑定矩形来生成扫描路径。最后，通过检查光学约束和碰撞避免来验证生成的扫描方向和路径。

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