Fast Point Feature Histograms (FPFH) for 3D Registration

12 May 2009  ·  Radu Bogdan Rusu, Nico Blodow, Michael Beetz ·

In our recent work [1], [2], we proposed Point Feature Histograms (PFH) as robust multi-dimensional features which describe the local geometry around a point p for 3D point cloud datasets. In this paper, we modify their mathematical expressions and perform a rigorous analysis on their robustness and complexity for the problem of 3D registration for overlapping point cloud views... More concretely, we present several optimizations that reduce their computation times drastically by either caching previously computed values or by revising their theoretical formulations. The latter results in a new type of local features, called Fast Point Feature Histograms (FPFH), which retain most of the discriminative power of the PFH. Moreover, we propose an algorithm for the online computation of FPFH features for realtime applications. To validate our results we demonstrate their efficiency for 3D registration and propose a new sample consensus based method for bringing two datasets into the convergence basin of a local non-linear optimizer: SAC-IA (SAmple Consensus Initial Alignment). read more

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Datasets


Task Dataset Model Metric Name Metric Value Global Rank Benchmark
Point Cloud Registration 3DMatch Benchmark FPFH + RANSAC Recall 44.2 # 13
Point Cloud Registration 3DMatch (trained on KITTI) FPFH Recall 0.136 # 5
Point Cloud Registration ETH (trained on 3DMatch) FPFH Recall 0.221 # 7

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