Mar. 2021

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Chinese Optics> 2021> 14(2): 375-381.

LU Min, WANG Zhi-le, ZHANG Shu-qing. Establishment and analysis of the diffraction bidirectional reflection distribution function model for surface defects[J]. Chinese Optics, 2021, 14(2): 375-381. doi: 10.37188/CO.2020-0162

Citation:

LU Min, WANG Zhi-le, ZHANG Shu-qing. Establishment and analysis of the diffraction bidirectional reflection distribution function model for surface defects[J].Chinese Optics, 2021, 14(2): 375-381.doi:10.37188/CO.2020-0162

Citation:

LU Min, WANG Zhi-le, ZHANG Shu-qing. Establishment and analysis of the diffraction bidirectional reflection distribution function model for surface defects[J].Chinese Optics, 2021, 14(2): 375-381.doi:10.37188/CO.2020-0162

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Establishment and analysis of the diffraction bidirectional reflection distribution function model for surface defects

doi:10.37188/CO.2020-0162

Research Center for Space Optical Engineering, School of Astronautics, Harbin Institute of Technology, Harbin 150001, China

Funds:Supported by Aviation Science Foundation of China Aviation Research Institute (No. 20160177007)

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Corresponding author:18243087454@163.com
Received Date:07 Sep 2020
Rev Recd Date:23 Sep 2020

Available Online:08 Feb 2021

Publish Date:23 Mar 2021

Abstract

Abstract

The purpose of this paper is to establish a diffraction Bidirectional Reflection Distribution Function (BRDF) model of surface defects including scratches and pits, and to analyze the model being applied in various fields. By using nonparaxial scalar diffraction theory, a coherent window function filtering method is proposed, which can obtain the BRDF model of surface defect diffraction under incoherent light conditions. The effectiveness of the model is verified in related work, and the scattering characteristics of surface scratches and pits are obtained. The method and the results obtained by the model have high value in surface defect detection, surface defect stray light analysis and image rendering technology.
- diffraction,
- coherence,
- bidirectional reflection distribution function,
- Fourier optics,
- surface defects

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References (14)

References

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