Free-form surface registration using surface signatures
Free-form surface registration using surface signatures
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DOI：
10.1109/iccv.1999.790402
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发表时间：
1999-09
期刊：
影响因子：
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通讯作者：
S. Yamany;A. Farag
中科院分区：
文献类型：
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作者：
S. Yamany;A. Farag
本文介绍了一种新的自由曲面表示方案，以实现快速准确的配准和匹配。表面的精确配准是计算机视觉中的常见任务。所提出的表示方案捕获从某些点看到的表面曲率信息，并在这些点产生称为表面签名的图像。不同表面的匹配签名使得能够恢复这些表面之间的变换参数。我们建议使用模板匹配来比较签名图像。为了实现部分匹配，使用另一个标准，重叠比。该表示方案可以用作表面的全局表示以及局部表示，并且执行接近真实的时间配准。我们表明，签名表示可以用来匹配对象在3D场景中的存在的混乱和闭塞。提出的应用包括自由形式的对象匹配，多模态医疗体积配准和牙齿重建口腔内图像。
The paper introduces a new free-form surface representation scheme for the purpose of fast and accurate registration and matching. Accurate registration of surfaces is a common task in computer vision. The proposed representation scheme captures the surface curvature information seen from certain points and produces images called surface signatures at these points. Matching signatures of different surfaces enables the recovery of the transformation parameters between these surfaces. We propose to use template matching to compare the signature images. To enable partial matching, another criterion, the overlap ratio, is used. This representation scheme can be used as a global representation of the surface as well as a local one and performs near real time registration. We show that the signature representation can be used to match objects in 3D scenes in the presence of clutter and occlusion. Applications presented include free-form object matching, multimodal medical volume registration and dental teeth reconstruction from intra-oral images.