Papers › Leveraging Inlier Correspondences Proportion for Point Cloud Registration

Leveraging Inlier Correspondences Proportion for Point Cloud Registration

28 Jan 2022arXiv:2201.12094archive 2025-07-28

Lifa Zhu, Haining Guan, Changwei Lin, Renmin Han

In feature-learning based point cloud registration, the correct correspondence construction is vital for the subsequent transformation estimation. However, it is still a challenge to extract discriminative features from point cloud, especially when the input is partial and composed by indistinguishable surfaces (planes, smooth surfaces, etc.). As a result, the proportion of inlier correspondences that precisely match points between two unaligned point clouds is beyond satisfaction. Motivated by this, we devise several techniques to promote feature-learning based point cloud registration performance by leveraging inlier correspondences proportion: a pyramid hierarchy decoder to characterize point features in multiple scales, a consistent voting strategy to maintain consistent correspondences and a geometry guided encoding module to take geometric characteristics into consideration. Based on the above techniques, We build our Geometry-guided Consistent Network (GCNet), and challenge GCNet by indoor, outdoor and object-centric synthetic datasets. Comprehensive experiments demonstrate that GCNet outperforms the state-of-the-art methods and the techniques used in GCNet is model-agnostic, which could be easily migrated to other feature-based deep learning or traditional registration methods, and dramatically improve the performance. The code is available at https://github.com/zhulf0804/NgeNet.

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zhulf0804/ngenet officialmentioned in papermentioned on GitHubpytorch report

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Tasks

DecoderPoint Cloud Registration

Results from the paper archive 2025-07-28

TaskDatasetModelMetricValueRank at snapshotLeaderboardReport
Point Cloud Registration 3DLoMatch (10-30% overlap) NgeNet Recall ( correspondence RMSE below 0.2) 71.9 #3 of 13 Archive leaderboard report
Point Cloud Registration 3DMatch (at least 30% overlapped - FCGF setting) NgeNet RE (all) 4.932 #1 of 14 Archive leaderboard report
Point Cloud Registration 3DMatch (at least 30% overlapped - FCGF setting) NgeNet Recall (0.3m, 15 degrees) 95.0 #1 of 14 Archive leaderboard report
Point Cloud Registration 3DMatch (at least 30% overlapped - FCGF setting) NgeNet TE (all) 0.155 #1 of 14 Archive leaderboard report
Point Cloud Registration 3DMatch (at least 30% overlapped - sample 5k interest points) NgeNet Recall ( correspondence RMSE below 0.2) 92.9 #1 of 11 Archive leaderboard report

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Methods

1x1 ConvolutionGCNetGlobal Context BlockLayer NormalizationReLUResidual ConnectionSoftmax

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