Guoqing Qiu, Haijing Yang, Yantao Wang, Yating Wei, Pan Luo. Dim Target Detection in Airborne Infrared Images Based on Visual Feature Fusion[J]. Laser & Optoelectronics Progress, 2020, 57(18): 181004
- Laser & Optoelectronics Progress
- Vol. 57, Issue 18, 181004 (2020)
Fig. 1. Enhancement effect of high brightness cloud. (a) Original image; (b) edge extraction image; (c) overlay image
Fig. 2. Distribution maps of intensity and gradient of target and its neighborhood. (a) Original image; (b) 3D intensity distribution; (c) gradient map
Fig. 3. Cloud and its gradient distribution. (a) Original image; (b) gradient distribution of cloud edge region
Fig. 4. Gradient operators in four directions
Fig. 5. Detection results. (a) Original image; (b) 3D intensity distribution of original image; (c) effect image; (d) 3D intensity distribution of effect image
Fig. 6. Detection results of different methods. (a) Original image; (b) Top-Hat method; (c) LRES method; (d) NRAM method; (e) LIG method; (f) proposed method
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Table 1. Detection performance of different methods
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Table 2. SCR of different methods
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Table 3. BSF of different methods
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