Title
MVP-Net: Multiple View Pointwise Semantic Segmentation of Large-Scale Point Clouds.
Abstract
Semantic segmentation of 3D point cloud is an essential task for autonomous driving environment perception. The pipeline of most pointwise point cloud semantic segmentation methods includes points sampling, neighbor searching, feature aggregation, and classification. Neighbor searching method like K-nearest neighbors algorithm, KNN, has been widely applied. However, the complexity of KNN is always a bottleneck of efficiency. In this paper, we propose an end-to-end neural architecture, Multiple View Pointwise Net, MVP-Net, to efficiently and directly infer large-scale outdoor point cloud without KNN or any complex pre/postprocessing. Instead, assumption-based sorting and multi-rotation of point cloud methods are introduced to point feature aggregation and receptive field expanding. Numerical experiments show that the proposed MVP-Net is 11 times faster than the most efficient pointwise semantic segmentation method RandLA-Net and achieves the same accuracy on the large-scale benchmark SemanticKITTI dataset.
Year
DOI
Venue
2022
10.24132/JWSCG.2022.1
Journal of WSCG
DocType
Volume
Issue
Journal
30
1-2
ISSN
Citations 
PageRank 
1213-6972
0
0.34
References 
Authors
0
6
Name
Order
Citations
PageRank
Chuanyu Luo100.34
Xiaohan Li201.01
Nuo Cheng300.68
Han Li46911.02
Shengguang Lei500.34
Pu Li603.04