Infrared and Laser Engineering, Volume. 50, Issue 3, 20200215(2021)
Research on extracting water weak texture based on optical filtering
Figures & Tables(16)
Fig. 3. MTF comparison between double-aperture and single-aperture
Fig. 5. MTF comparison for signal and clutter in double aperture and single aperture
Fig. 6. Ideal model comparison of double aperture and single aperture
Fig. 9. Comparison of signal and clutter in MTF of double aperture and single aperture
Fig. 11. Double aperture diaphragm, single aperture diaphragm and resolution target
Fig. 12. Imaging effect comparison between double aperture and single aperture
Table 1. [in Chinese]
View tableView in ArticleTable 1. [in Chinese]
Item Single aperture Double aperture SCR enhancement SCR/dB −44.6 −34.2 +23.3%
Table 2. [in Chinese]
View tableView in ArticleTable 2. [in Chinese]
Item Single aperture Double aperture Imaging 
Aperture function 
Non-interference MTF 
Digital contrast enhancement 
Table 3. [in Chinese]
View tableView in ArticleTable 3. [in Chinese]
Item Parameter of optical system Specification 1 Numeric aperture 0.1 2 Focal length/mm 153 3 Object distance/mm 6 000 4 Magnification 0.03 5 Camera parameter Sensor size 1/3 in Pixel size 1.67 μm
Table 4. [in Chinese]
View tableView in ArticleTable 4. [in Chinese]
Type of aperture Single aperture Double aperture Imaging 
SCR enhancment - +11.2%
Tools
Get Citation
Copy Citation Text
Xiangxiang Zhang, Yutian Fu, Yonghe Chen. Research on extracting water weak texture based on optical filtering[J]. Infrared and Laser Engineering, 2021, 50(3): 20200215
Paper Information
Category: Photoelectric measurement
Received: Nov. 15, 2020
Accepted: --
Published Online: Jul. 15, 2021
The Author Email:
© Copyright 2018-2021 | Chinese Laser Press.
All Rights Reserved 沪ICP备15018463号-20