Jingfa Lei, Haoran Xie, Yongling Li, Dong Wu, Miao Zhang, Ruhai Zhao. High dynamic range surface measurement method based on adaptive multi-exposure fusion[J]. Infrared and Laser Engineering, 2024, 53(1): 20230370
- Infrared and Laser Engineering
- Vol. 53, Issue 1, 20230370 (2024)
Fig. 1. Schematic diagram of stripe projection profilometry
Fig. 2. Example of I 0 histogram
Fig. 3. Complementary Gray code and four step phase shift graph
Fig. 4. Schematic diagram of complementary Gray code
Fig. 5. Example of image histogram at 18 ms
Fig. 6. Fringe patterns fused with different exposure times. (a) First group exposure; (b) Second group exposure; (c) Adaptive exposure
Fig. 7. Fringe image of U-card in different methods. (a) Projection phase method; (b) Methods of Ref.[11]; (c) Proposed method
Fig. 8. Fringe image of connection block in different methods. (a) Projection phase method; (b) Methods of Ref.[11]; (c) Proposed method
Fig. 9. Fringe image of disc in different methods. (a) Projection phase method; (b) Methods of Ref.[11]; (c) Proposed method
Fig. 10. Point cloud image of U-card in different methods. (a) Projection phase method; (b) Methods of Ref.[11]; (c) Proposed method
Fig. 11. Point cloud image of U-card in different methods. (a) Projection phase method; (b) Methods of Ref.[11]; (c) Proposed method
Fig. 12. Point cloud image of disc in different methods. (a) Projection phase method; (b) Methods of Ref.[11]; (c) Proposed method
Fig. 13. The number and reconstruction rate of 3D point clouds measured using different methods. (a) U-card; (b) Connection block; (c) Disc
Fig. 14. Standard block step height measurement. (a) Standard block ladder physical diagram; (b) Standard block ladder 3D point cloud encapsulation diagram; (c) Height difference measurement results
|
Table 1. The parameter values of the tested object
|
Table 2. Comparative analysis of step error in measuring standard blocks using different methods
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