• Optics and Precision Engineering
  • Vol. 32, Issue 24, 3632 (2024)
Zhonghe LIU, Zongchun LI*, and Hua HE
Author Affiliations
  • Institute of Geospatial Information, Information Engineering University, Zhengzhou450001, China
  • show less
    DOI: 10.37188/OPE.20243224.3632 Cite this Article
    Zhonghe LIU, Zongchun LI, Hua HE. An optimization method for selecting common points considering position distribution and measuring precision in coordinate transformation[J]. Optics and Precision Engineering, 2024, 32(24): 3632 Copy Citation Text show less
    Distribution of homonymous points
    Fig. 1. Distribution of homonymous points
    Geometric position distribution of control points
    Fig. 2. Geometric position distribution of control points
    Location distribution of control points
    Fig. 3. Location distribution of control points
    Location distribution of control points
    Fig. 4. Location distribution of control points
    Point nameX/mY/mZ/m
    C130.50030.50030.500
    C2-30.50030.50030.500
    C3-30.500-30.50030.500
    C430.500-30.50030.500
    C530.50030.500-30.500
    C6-30.50030.500-30.500
    C7-30.500-30.500-30.500
    C830.500-30.500-30.500
    Table 1. Coordinates of inspection points
    SchemeStatisticCond(BWminσin/mσout/m
    RG(1 585,5 239)(0.22,0.65)(0.023,0.088)(0.060,2.915)
    AVE2 6070.510.0510.990
    SD4340.070.0100.415
    RG(1 315,3 911)(0.30,0.67)(0.020,0.095)(0.009,2.762)
    AVE1 9170.560.0500.452
    SD3020.050.0100.353
    RG(72,78)(0.62,0.65)(0.023,0.091)(0.010,0.100)
    AVE750.640.0500.041
    SD10.000.0090.013
    RG(51,54)(0.67,0.69)(0.020,0.097)(0.007,0.064)
    AVE530.680.0500.032
    SD00.000.0090.009
    Table 2. Statistical results
    MethodNumberPoint numberAVE(S¯)/mCond(BWminσin/mσout/mσtotal/mEr/radEt/rad
    LS601~604.19450.850.0620.0220.0620.0020.021
    Reference [11601~604.19450.850.0630.0220.0630.0020.021
    Reference [12601~604.19450.850.0630.0200.0630.0020.020
    Reference [2482,12,18,36,43,49,51,535.06150.550.0410.1120.0750.0100.080
    Reference [28811,13,2123,49,5152,536.174100.230.0490.0770.0760.0070.121
    Proposed method8112123,25,48,5152,556.77780.510.0350.0590.0740.0040.083
    16

    11,15,18,20,23,29,30,32,

    38,43,47,50,51,55,56,60

    4.88560.740.0450.0550.0670.0050.065
    Only consider σin811,21,29,37,41,45,49,564.57870.500.0170.1610.0880.0190.222
    Table 3. Result of coordinate transformation
    MethodNumberPoint numberAVE(S¯)/mCond(BWminσin/mσout/mσtotal/mEr/radEt/rad
    LS601~604.19750.850.0710.0290.0640.0030.041
    Reference [1160剔除11(XZ)、23(X)、51(X4.19750.850.0640.0290.0640.0030.041
    Reference [1260剔除11(XZ)、23(X)、51(X4.19750.850.0640.0190.0640.0020.032
    Reference [2482,12,18,36,43,49,51,535.08360.550.0670.1120.0770.0120.089
    Reference [28811,13,21,23,49,5152,536.197100.230.0970.1710.0840.0210.275
    Proposed method83,15,18,32,41,43,50,564.29860.590.0330.0870.0720.0100.080
    16

    1,2,8,10,15,16,18,31,41,

    43,45,49,50,53,56,58

    4.22550.760.0460.0700.0680.0080.072
    Table 4. Result of coordinate transformation
    MethodNumberPoint numberAVE(S¯)/mCond(BWminσin/mmσtotal/mm
    LS651~6566.592630.950.390.38
    Reference [1165剔除Z(13,15),Y(55,56,5766.592630.950.370.37
    Reference [12651~6566.592630.950.370.37
    Reference [2484,6,22,25,29,31,59,6267.902800.500.250.57
    Proposed method85,6,17,20,37,40,51,5970.912180.570.240.46
    16

    3,5,6,8,17,19,20,21,37,

    39,40,49,51,54,59,60

    71.192240.770.270.44
    Only consider σin819,23,34,39,41,43,45,4964.861 2200.230.120.96
    Table 5. Result of coordinate transformation
    Zhonghe LIU, Zongchun LI, Hua HE. An optimization method for selecting common points considering position distribution and measuring precision in coordinate transformation[J]. Optics and Precision Engineering, 2024, 32(24): 3632
    Download Citation