Zhenya Chen, Zhuoqiang Ma, Xiang Li, Xingquan Shen, Shangjin Yang, Hongbin Miao, Chuanjie Lu. Deep hole roundness measurement method of circular structured light system[J]. Infrared and Laser Engineering, 2024, 53(4): 20230660

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- Infrared and Laser Engineering
- Vol. 53, Issue 4, 20230660 (2024)

Fig. 1. Schematic diagram of point coordinate measurement of circular structured light system

Fig. 2. Small hole imaging model

Fig. 3. Schematic diagram of measurement error analysis of circular structured light systems

Fig. 4. Schematic diagram of circular structured light system roundness measurement. (a) Before rigid body transformation; (b) After rigid body transformation

Fig. 5. Schematic diagram of grid search algorithm

Fig. 6. Schematic diagram of system calibration

Fig. 7. Circular structure light fitting results

Fig. 8. Roundness measurement experiment of circular structured light system

Fig. 9. Images of the halo taken during the experiment

Fig. 10. Results of halo center point extraction

Fig. 11. 3D point cloud of the inner surface to be measured

Fig. 12. Roundness assessment points for 5 sections
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Table 1. Internal camera parameters and lens distortion parameters
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Table 2. Circular structured light parameters
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Table 3. Roundness evaluation results of 5 cross sections
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Table 4. Results of 5 roundness evaluations of a single section before compensation
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Table 5. Results of 5 roundness evaluations of a single section after compensation

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