计算机科学与技术

结合点云纹理信息的快速点特征直方图描述子算法

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  • 华南理工大学 机械与汽车工程学院,广东  广州  510640
莫海军(1966-),男,博士,副教授,主要从事机器人抓取及机器人视觉研究。

收稿日期: 2020-11-13

  修回日期: 2021-02-07

  网络出版日期: 2021-03-05

基金资助

广东省重点领域研发计划项目(2020B090926004)

Fast Point Feature Histogram Descriptor Algorithm Combined With Point Cloud Texture Information

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  • School of Mechanical & Automotive Engineering, South China University of Technology, Guangzhou 510640, Guangdong, China
莫海军(1966-),男,博士,副教授,主要从事机器人抓取及机器人视觉研究。

Received date: 2020-11-13

  Revised date: 2021-02-07

  Online published: 2021-03-05

Supported by

Supported by the Key R&D Project of Guangdong Province(2020B090926004)

摘要

为了提高点云匹配识别过程中的特征提取效率和匹配精度,提出一种结合点云纹理信息的快速点特征直方图描述子算法。首先基于快速点特征直方图描述子构建形状特征直方图,采用CIELab色彩空间和多种点对纹理属性度量构建纹理特征直方图,然后将两特征直方图连接获得结合点云纹理信息的快速点特征直方图描述子。运用公开点云数据集及实景点云数据进行验证,对该特征描述子与多个现有描述子展开特征匹配试验及点密度变化试验。试验结果表明:当采用CIE00色差作为点对纹理属性度量时描述子的综合性能最佳;且该算法具有良好的特征描述性能和匹配精度,特征提取效率和匹配效率高,在点云密度变化时具有较强的鲁棒性。

本文引用格式

莫海军 陈杰 王顺栋 . 结合点云纹理信息的快速点特征直方图描述子算法[J]. 华南理工大学学报(自然科学版), 2021 , 49(6) : 56 -65,76 . DOI: 10.12141/j.issn.1000-565X.200696

Abstract

A fast point feature histogram descriptor algorithm combined with point cloud texture information is proposed to improve the feature extraction efficiency and matching accuracy in the point cloud matching and recognition process. Firstly, a shape feature histogram was constructed based on the fast point feature histogram descriptor and a texture feature histogram was constructed by using CIELab color space and multiple point-to-texture attribute metrics. Then the two feature histograms were connected to obtain a fast point feature histogram descriptor combined with point cloud texture information. The feature histogram descriptor was verified by using public point cloud data sets and real spot cloud data. and the feature matching test and point density change test were carried out for this feature descriptor and multiple existing descriptors. The test results show that the comprehensive performance of the descriptor is the best when the CIE00 color difference is used as the point-to-texture attribute metrics. The algorithm has a good feature description performance and high feature extraction efficiency and matching efficiency and it has strong robustness when the point cloud density changes.
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