Full Space Monocular Light Pen Measurement Method Based on Rotary Platform

Fig. 6. Checkerboard images from different angles. (a) Checkerboard position 1; (b) checkerboard position 2; (c) checkerboard position 3; (d) checkerboard position 4

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Fig. 7. Simulation system

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Fig. 8. Simulation error

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Fig. 9. Large scale measurement

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Table 1. Parameters of camera translation
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Table 1. Parameters of camera translation
Angle /(°) X /mm Y /mm Z /mm
2 -1.65 -0.10 0.01
4 -3.27 -0.06 0.11
6 -4.90 -0.06 0.22
︙ ︙ ︙ ︙

Table 2. Rotor parameters
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Table 2. Rotor parameters
Rotor parameter Experimental result Error /mm
Plane equation -0.10629x-6.5193y-0.83029z-1=0
Direction of vector (-0.0162,-0.9919,-0.1263) 0.22
Rotor position (-0.2737,-6.10252,53.1738) 0.31

Table 3. Measured results of large scale measurement experimentsmm

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Table 3. Measured results of large scale measurement experimentsmm

Measured result oflaser rangefinder	Measured resultof method 1	Measured resultof method 2	Error of method 1	Error of method 2
500.80	500.62	500.52	0.18	0.28
1000.60	1000.77	1000.39	0.17	0.21
1499.80	1499.64	1499.60	0.16	0.20
2000.60	2000.83	2000.36	0.23	0.24
2500.30	Can't measure	2500.46	Can't measure	0.16
2999.50	Can't measure	2999.67	Can't measure	0.17
3500.20	Can't measure	3500.39	Can't measure	0.19
4000.00	Can't measure	4000.25	Can't measure	0.25
4499.30	Can't measure	4499.64	Can't measure	0.34
5000.20	Can't measure	4999.94	Can't measure	0.26

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Zhijing Yu, Zechuan Li, Xin Li, Jun Xu, Yanling Li, Jun Wu. Full Space Monocular Light Pen Measurement Method Based on Rotary Platform[J]. Acta Optica Sinica, 2020, 40(23): 2312001

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