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Three-dimensional computer visions for generating a complete B-Reps solid model from multiple views of polyhedra

机译:用于从多面体的多视图生成完整B-REPS实体模型的三维计算机愿景

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This paper presents a series of unique methods to generate a complete B-Reps type solid model, based on the information of stereo image pairs from multiple views that are obtained by taking pictures of polyhedral objects with stereo-cameras. First, we present a method to generate 2D B-Reps that become a basis of topological information of 3D B-Reps, and a hierarchical method to determine corresponding point pairs. Then, by introducing an open shell, a set of visible faces with a boundary, we present a method to generate the open shell regularly in terms of geometry to represent a result of recognition for a single view. Finally, after discussing the problems when unifying plural open shells obtained for multiple views into a solid, we propose a method to overcome them and generate a complete solid (a closed shell) model. This paper asserts that by outputting the B-Reps in terms of the data structure of a 3D CAD a variety of applications become possible, and that, this model, which generates open shells in an intermediate stage, is also effective in reducing shape errors (relative positional errors).
机译:本文介绍了一系列独特的方法,用于基于通过使用立体摄像机的多面体对象图片获得的多个视图的立体图像对的信息来生成完整的B-REPS类型实体模型。首先,我们介绍了一种生成2D B-Reps的方法,该方法成为3D B-reps的拓扑信息的基础,以及确定对应点对的分层方法。然后,通过引入开口外壳,一组具有边界的可见面,我们呈现一种方法,以便在几何形状方面定期生成开放壳,以表示单个视图的识别结果。最后,在讨论统一多个视图的多个视图中的多个开口壳体中讨论问题之后,我们提出了一种克服它们并产生完整的固体(封闭壳)模型的方法。本文断言,通过在3D CAD的数据结构方面输出B-REP各种应用程序,而且该模型在中间阶段生成打开的壳牌,在减少形状误差方面也是有效的(相对位置误差)。

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