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吴鹏鹏, 梁栋, 赵宝, 周磊. LSVSH描述符:高鉴别强鲁棒的点云局部特征统计直方图[J]. 计算机辅助设计与图形学学报, 2024, 36(2): 248-257. DOI: 10.3724/SP.J.1089.2024.19803
引用本文: 吴鹏鹏, 梁栋, 赵宝, 周磊. LSVSH描述符:高鉴别强鲁棒的点云局部特征统计直方图[J]. 计算机辅助设计与图形学学报, 2024, 36(2): 248-257. DOI: 10.3724/SP.J.1089.2024.19803
Wu Pengpeng, Liang Dong, Zhao Bao, Zhou Lei. LSVSH Descriptor: A Local Feature Statistic Histogram with High Discrimination and Strong Robustness[J]. Journal of Computer-Aided Design & Computer Graphics, 2024, 36(2): 248-257. DOI: 10.3724/SP.J.1089.2024.19803
Citation: Wu Pengpeng, Liang Dong, Zhao Bao, Zhou Lei. LSVSH Descriptor: A Local Feature Statistic Histogram with High Discrimination and Strong Robustness[J]. Journal of Computer-Aided Design & Computer Graphics, 2024, 36(2): 248-257. DOI: 10.3724/SP.J.1089.2024.19803

LSVSH描述符:高鉴别强鲁棒的点云局部特征统计直方图

LSVSH Descriptor: A Local Feature Statistic Histogram with High Discrimination and Strong Robustness

  • 摘要: 三维局部特征描述是三维计算机视觉中的重要任务.现实场景中包含噪声、遮挡和杂波等干扰,使得准确和鲁棒的三维局部特征描述具有很大的挑战性.为提高特征描述的性能,提出一种局部曲面变化统计直方图(local surface variation based statistics histogram,LSVSH)描述符.首先设计一种不依赖于局部参考轴(local reference axis,LRA)的新属性(称为曲率属性),增强描述符对LRA误差的稳健性;然后沿径向剖分局部空间,在每个子空间中统计3个角度属性和1个曲率属性生成LSVSH描述符,实现对局部曲面信息的全面稳健描述.在B3R,U3M,U3OR和QuLD这4个数据集上进行大量的实验,结果表明,LSVSH在4个数据集上的RPC下面积(the area under the recall-precisioncurve,AUCpr)值分别为0.95,0.70,0.54和0.10,优于现有的局部特征描述符的性能;在U3M数据集上的正确配准率和在U3OR数据集上的正确识别率分别达到70%和100%,验证了LSVSH应用于物体配准和识别任务上的有效性.

     

    Abstract: 3D local feature description is an important task in 3D computer vision. However, accurate and robust feature description is still a challenge in the presence of various nuisances (including noise, occlusion and clutter) contained in real scenes. To improve the performance of feature description, this paper proposes a LSVSH local feature descriptor. First, a new attribute (called curvature attribute) with independent of LRA is designed, improving the robustness of LSVSH to the error of LRA. Second, the local space is divided into several bins along the radial direction, and then three angle attributes and one curvature attribute are counted in each bin to generate the LSVSH descriptor, achieving a full and robust description of local surface information. Extensive experiments on B3R, U3M, U3OR and QuLD datasets are implemented. Results show that the AUCpr values of LSVSH on the four datasets are 0.95, 0.70, 0.54 and 0.10 respectively, which are all superior to existing local feature descriptors. LSVSH achieves 70% correct registration on U3M dataset and 100% correct recognition on U3OR dataset, verifying its effectiveness in these applications.

     

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