Point cloud optimization of multi-view images in digital image correlation system

被引:6
作者
Ge, Pengxiang [1 ,2 ]
Wang, Yonghong [1 ]
Zhou, Jie [1 ]
Wang, Biao [1 ]
机构
[1] Hefei Univ Technol, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Peoples R China
[2] Anhui Jianzhu Univ, Sch Mech & Elect Engn, Hefei 230009, Peoples R China
基金
中国国家自然科学基金;
关键词
Digital image correlation; Multi-level scheme; Point clouds; Multi-view;
D O I
10.1016/j.optlaseng.2023.107931
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Post-processing of the initial point cloud is one of the important ways to improve the measurement accuracy of digital image correlation (DIC). In this study, a multi-level point cloud optimization scheme is proposed for processing point clouds of multi-view images in DIC systems. Dense point clouds obtained after interpolation of primary point clouds from multi-view images contain noise. First, the local Random Sample Consensus (RAN -SAC) algorithm is proposed to retain local features while removing coarse matching points. Defects are filled in by the adaptive cavity repair technique based on information around the cavities and restores the original surface shape to the greatest extent. Finally, a multi-layer surface filtering is executed to smooth the mesh. Experiments verify the comprehensive performance of the multi-level optimization scheme, providing excellent results in point cloud fusion, cavity repair, and mesh smoothing, regardless of static 3D reconstruction or dynamic deformation measurement.
引用
收藏
页数:8
相关论文
共 33 条
[1]   A Robust Finite Element-based Filter for Digital Image and Volume Correlation Displacement Data [J].
Becker, T. H. ;
Marrow, T. J. .
EXPERIMENTAL MECHANICS, 2021, 61 (06) :901-916
[2]   Calculation of 3D displacement and time to failure of an earth dam using DIC analysis of hillshade images derived from high temporal resolution point cloud data [J].
Berg, Nancy ;
Hori, Toshikazu ;
Take, W. Andy .
LANDSLIDES, 2020, 17 (03) :499-515
[3]   A sharpness-dependent filter for recovering sharp features in repaired 3D mesh models [J].
Chen, Chun-Yen ;
Cheng, Kuo-Young .
IEEE TRANSACTIONS ON VISUALIZATION AND COMPUTER GRAPHICS, 2008, 14 (01) :200-212
[4]   Homography-based measurement of bridge vibration using UAV and DIC method [J].
Chen, Gongfa ;
Liang, Qiang ;
Zhong, Wentao ;
Gao, Xingjun ;
Cui, Fangsen .
MEASUREMENT, 2021, 170
[5]   Research on Multi-View 3D Reconstruction Technology Based on SFM [J].
Gao, Lei ;
Zhao, Yingbao ;
Han, Jingchang ;
Liu, Huixian .
SENSORS, 2022, 22 (12)
[6]   Universal calibration for a ring camera array based on a rotational target [J].
Ge, Pengxiang ;
Wang, Yonghong ;
Wang, Biao .
OPTICS EXPRESS, 2022, 30 (09) :14538-14552
[7]   Mirror-assisted multiview DIC for 360° panoramic large deformation measurement [J].
Ge, Pengxiang ;
Wang, Huanqing ;
Zhang, Qian ;
Xie, Haotian ;
Wang, Yonghong .
OPTICS AND LASERS IN ENGINEERING, 2021, 146
[8]   Binocular DIC system for 3D correlation measurements [J].
Ge, Pengxiang ;
Wang, Huanqing ;
Hu, Yin ;
Wang, Yonghong .
APPLIED OPTICS, 2021, 60 (14) :4101-4108
[9]   Multiview connection technique for 360-deg three-dimensional measurement [J].
Guo, HW ;
Chen, MY .
OPTICAL ENGINEERING, 2003, 42 (04) :900-905
[10]   A review of algorithms for filtering the 3D point cloud [J].
Han, Xian-Feng ;
Jin, Jesse S. ;
Wang, Ming-Jie ;
Jiang, Wei ;
Gao, Lei ;
Xiao, Liping .
SIGNAL PROCESSING-IMAGE COMMUNICATION, 2017, 57 :103-112