arXiv Computer Vision By Jiuming Liu, Mengmeng Liu, Guangming Wang, Lihao Liu, Michael Ying Yang, Yunpeng Zhang, Francesco Nex, Hao Cheng, Hesheng Wang

MemReg: Streaming Outdoor LiDAR Point Cloud Registration with Hybrid Memory Buffers

Read the original on arXiv Computer Vision →

MemReg introduces a multi-frame outdoor LiDAR point cloud registration network that leverages hybrid memory buffers to capture temporal correlations in streaming sequences. The system uses an implicit memory feature buffer and an explicit memory pose buffer to store and update pose-related temporal features, while a dynamic history weighting module adaptively fuses current and historical information. Experiments on KITTI, nuScenes, and Apollo-Southbay datasets show MemReg surpasses previous pair-wise methods and multi-frame SLAM systems, and it also performs competitively on indoor datasets such as 3DMatch, 3DLoMatch, and ScanNet.

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