Qi Kang, Lina Zheng, Haijiang Wang. Aerial camera image focusing method based on out-of-phase differential filtering effect[J]. Infrared and Laser Engineering, 2021, 50(8): 20200432
- Infrared and Laser Engineering
- Vol. 50, Issue 8, 20200432 (2021)
Fig. 1. Ideal optical imaging system
Fig. 2. Distribution of typical power spectrum
Fig. 3. Output signal of spatial filter
Fig. 4. Schematic diagram of aerial camera image plane detection by spatial filtering effect
Fig. 5. Principle diagram of linear CCD image plane detection
Fig. 6. Out-of-phase differential detection algorithm
Fig. 7. Implementation process of out-of-phase differential focusing method
Fig. 8. Experimental acquisition of images
Fig. 9. Focusing curves in different imaging scenarios
|
Table 1. Repeatability accuracy comparison
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