Chinese Journal of Lasers, Volume. 46, Issue 5, 0504001(2019)
Point-Cloud Splicing Technology for Large-Scale Surface Topography Measurement System
Figures & Tables(8)
Fig. 6. Point-cloud splicing effect by PSO-ICP algorithm. (a) Point cloud coarse registration; (b) point cloud fine matching
Table 1. Center coordinate of sphere after reconstruction
View tableTable 1. Center coordinate of sphere after reconstruction
Indicator value Reverse reconstruction /mm Laser tracker measurement /mm x coordinate of reference ball 14212.408 4212.488 y coordinate of reference ball 11622.423 1622.333 z coordinate of reference ball 1-1643.784 -1643.69 x coordinate of reference ball 25567.029 5566.939 y coordinate of reference ball 23712.285 3712.195 z coordinate of reference ball 2-1373.749 -1373.67 Ball center distance 2505.082 2504.99
Table 2. Positional deviation of test points
View tableTable 2. Positional deviation of test points
No. of comparison point Reference position Measuring position Deviation x y z x y z 1 -500 240 -43.294 -499.9962 240.0027 -43.2769 0.0177 2 -580 260 -56.274 -580.0134 260.0038 -56.2427 0.0343 3 -600 140 -87.3335 -600.014 140.001 -87.3145 0.0236 4 -700 160 -133.0625 -700.0026 160.0015 -133.0567 0.0065 5 -900 220 -274.0151 -899.9993 219.9997 -274.0157 -0.001 6 -920 80 -310.8796 -920.0157 79.9975 -310.8746 0.0167 7 -860 -80 -312.1011 -860.029 -80.0282 -312.0843 0.0438 8 -680 -160 -197.7479 -680.0222 -160.0348 -197.7299 0.0451 9 -500 -240 -171.6082 -500.0097 -240.034 -171.5918 0.039 10 -360 -180 -86.9163 -360.0022 -180.0115 -86.8977 0.022 11 40 -200 -80.1959 40.0009 -200.0083 -80.1846 0.014 12 320 -220 -116.2265 320.0007 -219.9925 -116.2345 -0.011 13 321.8608 -270.0838 -235.334 321.8545 -270.0496 -235.3415 -0.0356 14 520 -180 -218.7248 519.9833 -179.9697 -218.7353 -0.0361 15 660 -120 -301.9946 659.9718 -119.9584 -302.0073 -0.0519 16 736.1311 -41.4981 -305.627 736.1327 -41.4985 -305.6268 0.0017 17 760 140 -297.1258 759.9975 140.0004 -297.1269 -0.0028 18 720 180 -236.2321 720.0354 180.0072 -236.1898 0.0557 19 540 140 -122.7828 540.0248 140.0136 -122.7262 0.0633 20 540 140 -122.7828 540.0248 140.0136 -122.7262 0.0633 21 440 120 -79.5506 440.0183 120.0148 -79.4965 0.059 22 420 260 -55.1847 420.0178 260.0004 -55.1693 0.0235 23 340 260 -36.172 339.9916 260.0139 -36.1012 0.0727 24 320 160 -23.84 320.0083 159.9973 -23.7903 0.0505 25 180 100 -10.833 180.0029 100.0055 -10.7878 0.0457 26 -60 100 -3.8332 -60.0002 100.0102 -3.8054 0.0296 27 -200 100 -7.1439 -200.0008 100.0068 -7.1246 0.0205 28 -340 100 -15.852 -340.0032 99.9981 -15.8239 0.0283 29 -420 140 -29.0242 -419.9993 140.0025 -29.0167 0.008 30 -480 180 -35.6098 -479.9988 180.0025 -35.601 0.0093 Minimum -920 -270.0838 -312.1011 -920.0157 -270.0496 -312.0843 -0.0519 Maximum 760 260 -3.8332 759.9975 260.0139 -3.8054 0.0727
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Guoqing Ma, Li Liu, Zhenglin Yu, Guohua Cao, Qiang Wang. Point-Cloud Splicing Technology for Large-Scale Surface Topography Measurement System[J]. Chinese Journal of Lasers, 2019, 46(5): 0504001
Paper Information
Category: measurement and metrology
Received: Oct. 16, 2018
Accepted: Feb. 15, 2019
Published Online: Nov. 11, 2019
The Author Email: Ma Guoqing (magq@cust.edu.cn)
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