Peng Zhou, Chenghai Hu, Chao Bi, Xue Hao. Auto focusing technology of three-axis vision measuring system[J]. Infrared and Laser Engineering, 2021, 50(12): 20210141
- Infrared and Laser Engineering
- Vol. 50, Issue 12, 20210141 (2021)
Fig. 1. Composition diagram of three-axis visual coordinate system
Fig. 2. Defocus model of optical system
Fig. 3. Intersection point picture of two curves
Fig. 4. Schematic diagram of the large difference between the focus range center point and the on-focus point
Fig. 5. Schematic diagram of image collection point range
Fig. 6. Three-axis vision coordinate measuring system
Fig. 7. Schematic diagram of gauge block
Fig. 8. Schematic diagram of the gauge block perpendicular to the optical axis of the camera
Fig. 9. Relationship curve between camera position and image sharpness
Fig. 10. Gaussian fitting curve
Fig. 11. Placement diagram of two gauge blocks
Fig. 12. Measuring the thickness of the gauge block
|
Table 1. Curve intersection position of 10 times approximate positioning
|
Table 2. The on-focus position of 10 times Gaussian curve fitting
Set citation alerts for the article
Please enter your email address
© Copyright 2018-2021 | Chinese Laser Press. All Rights Reserved 沪ICP备15018463号-20