SHREC’08 entry: Multi-view 3D retrieval using multi-scale contour representation
SHREC’08 entry: Multi-view 3D retrieval using multi-scale contour representation
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DOI：
10.1109/smi.2008.4547980
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发表时间：
2008-06
期刊：
影响因子：
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通讯作者：
Thibault Napoléon;Tomasz Adamek;F. Schmitt;Noel E. O'Connor
中科院分区：
文献类型：
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作者：
Thibault Napoléon;Tomasz Adamek;F. Schmitt;Noel E. O'Connor
我们在本文中描述了一种三维形状索引和检索的方法，我们应用于三个数据集的SHREC -形状检索比赛2008年：稳定的水密，CAD和通用3D模型。该方法是基于一组2D多视图后，使用连续PCA和封闭球体的模型的姿势和比例归一化。在所有视图中，我们提取模型的轮廓，并将它们成对进行比较。为了计算相似性度量，我们考虑轮廓的外部轮廓，我们提取它们在不同尺度水平上的凸和凹，并建立多尺度表示。然后通过使用动态规划实现的弹性匹配来比较轮廓对。
We describe in this paper a method for 3D shape indexing and retrieval that we apply on three data collections of the SHREC - SHape Retrieval Contest 2008: Stability on watertight, CAD and Generic 3D models. The method is based on a set of 2D multi-views after a pose and scale normalization of the models using Continuous PCA and the enclosing sphere. In all views we extract the models silhouettes and compare them pairwise. To compute the similitude measure we consider the external contour of the silhouettes, we extract their convexities and concavities at different scale levels and we build a multiscale representation. The pairs of contours are then compared by elastic matching achieved by using dynamic programming.