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KPRNet: Improving projection-based LiDAR semantic segmentation

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arxiv 2007.12668 v2 pith:DS3BK7XT submitted 2020-07-24 cs.CV cs.LG

classification cs.CVcs.LG
keywords segmentationcomponentkprnetlidarsemanticaccuracyaccurateachieve
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Semantic segmentation is an important component in the perception systems of autonomous vehicles. In this work, we adopt recent advances in both image and point cloud segmentation to achieve a better accuracy in the task of segmenting LiDAR scans. KPRNet improves the convolutional neural network architecture of 2D projection methods and utilizes KPConv to replace the commonly used post-processing techniques with a learnable point-wise component which allows us to obtain more accurate 3D labels. With these improvements our model outperforms the current best method on the SemanticKITTI benchmark, reaching an mIoU of 63.1.

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Cited by 2 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. Topology-Guided Knowledge Distillation for Efficient Point Cloud Processing

    cs.CV 2025-05 conditional novelty 6.0 of 10

    A 2.78M-parameter student distilled from a 46.16M-parameter Point Transformer V3 teacher stays within a few mIoU points on LiDAR segmentation while being roughly 16x smaller and 1.6x faster.

  2. PC-BEV: An Efficient Polar-Cartesian BEV Fusion Framework for LiDAR Semantic Segmentation

    cs.CV 2024-12 reject novelty 6.0 of 10

    PC-BEV fuses polar and Cartesian BEV features with precomputed remaps, achieving real-time LiDAR semantic segmentation that beats several range-view fusion baselines.

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