Hehui Geng, Hong Zhao, Penghui Bu, Yueyang Ma, Yiying Zhuang, Zhentao Fu. High Accuracy Positioning Method Based on 2D Imaging for the Coordinates of the Center of a Sphere[J]. Laser & Optoelectronics Progress, 2019, 56(2): 021501
- Laser & Optoelectronics Progress
- Vol. 56, Issue 2, 021501 (2019)
Fig. 1. Sphere imaging model
Fig. 2. Imaging distortion analyze of spherical center
Fig. 3. Simulation of factors affecting the imaging distortion errors of spherical center. (a) L=1000 mm; (b) L=600 mm
Fig. 4. Influence of noise on the proposed method
Fig. 5. Influence of noise on the proposed algorithm under missing edge
Fig. 6. Experimental image
Fig. 7. Experimental results. (a) Distance between adjacent positions; (b) cumulative deviation
Fig. 8. Sphere image after removing 1/4 of the edge
Fig. 9. Experimental results after removing 1/4 edges. (a) Distance between adjacent positions; (b) cumulative deviation
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Table 1. Comparison between the results of the traditional method and proposed method
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Table 2. Comparison of the results before and after the removal of 1/4 edge points
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