Modified Model of Polarized Bidirectional Reflectance Distribution Function on Material Surface

Jiejun, 汪杰君 Wang; Peng, 王鹏 Wang; Fangyuan, 王方原 Wang; Song, 叶松 Ye; Xinqiang, 王新强 Wang

doi:10.3788/gzxb20194801.0126001

Cited by 5 publications

(3 citation statements)

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“…The BRDF represents the reflection characteristics of the object surface at any observation angle for different light incident angles, and is a deterministic function to describe the light reflection characteristics of the object surface. The microsurface element model in this paper adopts the Gaussian distribution as the probability distribution function of the normal distribution of microsurface elements on the rough object surface [15], and the expression is.…”

Section: Characteristics and Modelingmentioning

confidence: 99%

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Target Surface pBRDF Model Optimization and Polarization Characteristics Analysis

Liu

Wang

et al. 2023

IEEE Photonics J.

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In this paper, the scattering characteristics of polarized light are studied based on the microsurface element theory, and the Polarization Bi-directional Reflection Distribution Function (pBRDF) model applicable to rough surfaces is established according to the three-component model, and the expression of polarization of reflected light from the target surface is derived based on the model, and the accuracy of the model is verified by comparing the model with the conventional model. The modeling is also carried out from the scattering perspective, and the relationship between different artificial target particle diameters and polarization characteristics is analyzed. The results show that the Degree Of Polarization (DOP) is strongly related to the detection zenith angle. The DOP of the target is largest in the direction of the mirror reflection of the source. The polarization characteristics of different materials are different, and the relative error of the established model is significantly smaller than that of the conventional model. And the scattering model can make preliminary classification of different man-made targets according to different particle diameters, which can provide theoretical support for the analysis of the polarization characteristics of the target surface.

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Section: Characteristics and Modelingmentioning

confidence: 99%

“…Extending to the more general case, n can be considered as a non-integer [15] [22]. For higher order specular reflections there are:…”

Section: Fig 2 Schematic Diagram Of Simultaneous Shading and Masking ...mentioning

confidence: 99%

Target Surface pBRDF Model Optimization and Polarization Characteristics Analysis

Liu

Wang

et al. 2023

IEEE Photonics J.

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“…Specular Reflection Lobe F s : In the existing pBRDF model about specular reflection is more accurately described, according to the microfacet theory, the material surface can be considered as an infinite number of microfacet planes obeying Fresnel's reflection law and Gaussian distribution [32]. Its expression can be expressed as follows:…”

Section: A a Modified Multiple Scattering Pbrdf Modelmentioning

confidence: 99%

Multiple Scattering Properties Based on Modified Microsurface pBRDF Model

Hao,

Duan,

Liu

et al. 2023

IEEE Photonics J.

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Scattering polarization properties are one of the main characteristics of a target. Different material types of the target surface can be expressed by the scattering polarization properties, and the use of polarization to characterise the target more effectively is a highly interesting topic. However, the existing polarized bidirectional reflection distribution function (pBRDF) based on microfacet theory for modelling light transmission over rough surfaces is not general. Modelling the scattering phenomena accurately on microsurfaces from a single specularly polarized reflection to full consideration of diffuse polarization remains a challenging task. In this work, we further introduce a directional diffuse reflection lobe to completely define the polarization properties of light in scattering, and revisit the microsurface in the masking and shadowing function part of the model, expanding the traditional symmetric V-groove structure, which is complemented by an asymmetric V-groove structure to improve the accuracy of the model description. We verify through a series of simulations and experiments that our model is in better agreement with the actual truth and that it is more suitable for describing the scattering polarization properties of most targets.

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Research on detection performance improvement of polarization GM-APD LiDAR with adaptive adjustment of aperture diameter and spatial correlation method

Zhou

Sun

Fan

et al. 2022

Optics & Laser Technology

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Modified Model of Polarized Bidirectional Reflectance Distribution Function on Material Surface

Cited by 5 publications

References 0 publications

Target Surface pBRDF Model Optimization and Polarization Characteristics Analysis

Target Surface pBRDF Model Optimization and Polarization Characteristics Analysis

Multiple Scattering Properties Based on Modified Microsurface pBRDF Model

Research on detection performance improvement of polarization GM-APD LiDAR with adaptive adjustment of aperture diameter and spatial correlation method

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