RailPC: A large‐scale railway point cloud semantic segmentation dataset

Abstract Semantic segmentation in the context of 3D point clouds for the railway environment holds a significant economic value, but its development is severely hindered by the lack of suitable and specific datasets. Additionally, the models trained on existing urban road point cloud datasets demons...

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Main Authors: Tengping Jiang, Shiwei Li, Qinyu Zhang, Guangshuai Wang, Zequn Zhang, Fankun Zeng, Peng An, Xin Jin, Shan Liu, Yongjun Wang
Format: Article
Language:English
Published: Wiley 2024-12-01
Series:CAAI Transactions on Intelligence Technology
Subjects:
Online Access:https://doi.org/10.1049/cit2.12349
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author Tengping Jiang
Shiwei Li
Qinyu Zhang
Guangshuai Wang
Zequn Zhang
Fankun Zeng
Peng An
Xin Jin
Shan Liu
Yongjun Wang
author_facet Tengping Jiang
Shiwei Li
Qinyu Zhang
Guangshuai Wang
Zequn Zhang
Fankun Zeng
Peng An
Xin Jin
Shan Liu
Yongjun Wang
author_sort Tengping Jiang
collection DOAJ
description Abstract Semantic segmentation in the context of 3D point clouds for the railway environment holds a significant economic value, but its development is severely hindered by the lack of suitable and specific datasets. Additionally, the models trained on existing urban road point cloud datasets demonstrate poor generalisation on railway data due to a large domain gap caused by non‐overlapping special/rare categories, for example, rail track, track bed etc. To harness the potential of supervised learning methods in the domain of 3D railway semantic segmentation, we introduce RailPC, a new point cloud benchmark. RailPC provides a large‐scale dataset with rich annotations for semantic segmentation in the railway environment. Notably, RailPC contains twice the number of annotated points compared to the largest available mobile laser scanning (MLS) point cloud dataset and is the first railway‐specific 3D dataset for semantic segmentation. It covers a total of nearly 25 km railway in two different scenes (urban and mountain), with 3 billion points that are finely labelled as 16 most typical classes with respect to railway, and the data acquisition process is completed in China by MLS systems. Through extensive experimentation, we evaluate the performance of advanced scene understanding methods on the annotated dataset and present a synthetic analysis of semantic segmentation results. Based on our findings, we establish some critical challenges towards railway‐scale point cloud semantic segmentation. The dataset is available at https://github.com/NNU‐GISA/GISA‐RailPC, and we will continuously update it based on community feedback.
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spelling doaj-art-7ab3c84133df4097bfe8343096e924dc2025-01-13T14:05:51ZengWileyCAAI Transactions on Intelligence Technology2468-23222024-12-01961548156010.1049/cit2.12349RailPC: A large‐scale railway point cloud semantic segmentation datasetTengping Jiang0Shiwei Li1Qinyu Zhang2Guangshuai Wang3Zequn Zhang4Fankun Zeng5Peng An6Xin Jin7Shan Liu8Yongjun Wang9Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing Normal University Nanjing ChinaJiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing Normal University Nanjing ChinaJiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing Normal University Nanjing ChinaTianjin Key Laboratory of Rail Transit Navigation Positioning and Spatio‐temporal Big Data Technology Tianjin ChinaCollege of Computer Science and Engineering Northwest Normal University Lanzhou ChinaMckelvey School of Engineering Washington University in St. Louis St. Louis Missouri USASchool of Electronic and Information Engineering Ningbo University of Technology Ningbo ChinaEastern Institute of Technology (EIT) Ningbo ChinaJiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing Normal University Nanjing ChinaJiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing Normal University Nanjing ChinaAbstract Semantic segmentation in the context of 3D point clouds for the railway environment holds a significant economic value, but its development is severely hindered by the lack of suitable and specific datasets. Additionally, the models trained on existing urban road point cloud datasets demonstrate poor generalisation on railway data due to a large domain gap caused by non‐overlapping special/rare categories, for example, rail track, track bed etc. To harness the potential of supervised learning methods in the domain of 3D railway semantic segmentation, we introduce RailPC, a new point cloud benchmark. RailPC provides a large‐scale dataset with rich annotations for semantic segmentation in the railway environment. Notably, RailPC contains twice the number of annotated points compared to the largest available mobile laser scanning (MLS) point cloud dataset and is the first railway‐specific 3D dataset for semantic segmentation. It covers a total of nearly 25 km railway in two different scenes (urban and mountain), with 3 billion points that are finely labelled as 16 most typical classes with respect to railway, and the data acquisition process is completed in China by MLS systems. Through extensive experimentation, we evaluate the performance of advanced scene understanding methods on the annotated dataset and present a synthetic analysis of semantic segmentation results. Based on our findings, we establish some critical challenges towards railway‐scale point cloud semantic segmentation. The dataset is available at https://github.com/NNU‐GISA/GISA‐RailPC, and we will continuously update it based on community feedback.https://doi.org/10.1049/cit2.12349data benchmarkMLS point cloudsrailway scenesemantic segmentation
spellingShingle Tengping Jiang
Shiwei Li
Qinyu Zhang
Guangshuai Wang
Zequn Zhang
Fankun Zeng
Peng An
Xin Jin
Shan Liu
Yongjun Wang
RailPC: A large‐scale railway point cloud semantic segmentation dataset
CAAI Transactions on Intelligence Technology
data benchmark
MLS point clouds
railway scene
semantic segmentation
title RailPC: A large‐scale railway point cloud semantic segmentation dataset
title_full RailPC: A large‐scale railway point cloud semantic segmentation dataset
title_fullStr RailPC: A large‐scale railway point cloud semantic segmentation dataset
title_full_unstemmed RailPC: A large‐scale railway point cloud semantic segmentation dataset
title_short RailPC: A large‐scale railway point cloud semantic segmentation dataset
title_sort railpc a large scale railway point cloud semantic segmentation dataset
topic data benchmark
MLS point clouds
railway scene
semantic segmentation
url https://doi.org/10.1049/cit2.12349
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