Xin Li, Ming Gao, Bin Feng. Method for Target-Background Contrast Enhancement Based on Color Polarization Imaging[J]. Laser & Optoelectronics Progress, 2018, 55(12): 121103
- Laser & Optoelectronics Progress
- Vol. 55, Issue 12, 121103 (2018)
Fig. 1. Index of refraction of water and degree of polarization versus wavelength. (a) Index of refraction; (b) degree of polarization
Fig. 2. Index of refraction of SiO2 and degree of polarization versus wavelength. (a) Index of refraction; (b) degree of polarization
Fig. 3. Flow chart of polarization image processing
Fig. 4. Experimental setup
Fig. 5. Polarization images collected in experimental 1. (a) I0; (b) I45; (c) I90; (d) I135
Fig. 6. Polarization images within different channels in experiment 1. (a) R; (b) G; (c) B
Fig. 7. Images obtained in experiment 1. (a) Original color image; (b) synthesized color polarization image; (c) color polarization image with threshold of 0.2
Fig. 8. Polarization images collected in experimental 2. (a) I0; (b) I45; (c) I90; (d) I135
Fig. 9. Polarization images within different channels in experiment 2. (a) R; (b) G ; (c) B
Fig. 10. Images obtained in experiment 2. (a) Original color image; (b) synthesized color polarization image; (c) color polarization image with threshold of 0.2
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Table 1. Vector-angle distance and contrast between original and polarization images for each group of experiments
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