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Model of bidirectional reflectance distribution function for metallic materials |
Kai Wang(王凯)1, Jing-Ping Zhu(朱京平)1, Hong Liu(刘宏)1,2, Xun Hou(侯洵)1 |
1. Key Laboratory for Physical Electronics and Devices of Ministry of Education and Shaanxi Key Laboratory of Information Photonic Technique, Xi'an Jiaotong University, Xi'an 710049, China; 2. The State Key Laboratory of Astronautic Dynamics, Xi'an Satellite Control Center, Xi'an 710043, China |
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Abstract Based on the three-component assumption that the reflection is divided into specular reflection, directional diffuse reflection, and ideal diffuse reflection, a bidirectional reflectance distribution function (BRDF) model of metallic materials is presented. Compared with the two-component assumption that the reflection is composed of specular reflection and diffuse reflection, the three-component assumption divides the diffuse reflection into directional diffuse and ideal diffuse reflection. This model effectively resolves the problem that constant diffuse reflection leads to considerable error for metallic materials. Simulation and measurement results validate that this three-component BRDF model can improve the modeling accuracy significantly and describe the reflection properties in the hemisphere space precisely for the metallic materials.
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Received: 24 December 2015
Revised: 29 April 2016
Accepted manuscript online:
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PACS:
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42.25.Gy
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(Edge and boundary effects; reflection and refraction)
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78.20.Bh
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(Theory, models, and numerical simulation)
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78.66.Bz
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(Metals and metallic alloys)
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Corresponding Authors:
Jing-Ping Zhu
E-mail: jpzhu@mail.xjtu.edu.cn
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Cite this article:
Kai Wang(王凯), Jing-Ping Zhu(朱京平), Hong Liu(刘宏), Xun Hou(侯洵) Model of bidirectional reflectance distribution function for metallic materials 2016 Chin. Phys. B 25 094201
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