| 光谱学与光谱分析 |
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| Modeling and Simulation of Spectral Polarimetric BRDF |
| LING Jin-jiang, LI Gang, ZHANG Ren-bin, TANG Qian, YE Qiu |
| School of Computer and Information, Hefei University of Technology, Hefei 230009, China |
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Abstract Under the conditions of the polarized light, The reflective surface of the object is affected by many factors, refractive index, surface roughness, and so the angle of incidence. For the rough surface in the different wavelengths of light exhibit different reflection characteristics of polarization, a spectral polarimetric BRDF based on Kirchhof theory is proposee. The spectral model of complex refraction index is combined with refraction index and extinction coefficient spectral model which were got by using the known complex refraction index at different value. Then get the spectral model of surface roughness derived from the classical surface roughness measuring method combined with the Fresnel reflection function. Take the spectral model of refraction index and roughness into the BRDF model, then the spectral polarimetirc BRDF model is proposed. Compare the simulation results of the refractive index varies with wavelength, roughness is constant, the refraction index and roughness both vary with wavelength and origin model with other papers, it shows that, the spectral polarimetric BRDF model can show the polarization characteristics of the surface accurately, and can provide a reliable basis for the application of polarization remote sensing, and other aspects of the classification of substances.
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Received: 2014-08-01
Accepted: 2014-12-18
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Corresponding Authors:
LING Jin-jiang
E-mail: lingjinjiang@hotmail.com
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