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Optical material characterization through BSDF measurement andanalysis

机译:通过BSDF测量和分析来表征光学材料

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摘要

The optical scattering signature and the absorbance of a material are of interest in a variety of engineering applications, particularly for those pertaining to optical remote sensing. The John Hopkins University Applied Physics Laboratory has developed an experimental capability to measure in-plane bidirectional scattering distribution functions to retrieve optical properties of materials. These measurements are supported at high angular resolution with wavelengths that span the ultra-violet to the long-wave infrared. Models have been developed to fit Lambertian, diffuse, near-specular, and specular scattering at a range of incident angles. Useful material properties can then be determined through analysis of the modeled BSDF. Optical characterization results are shown for a variety of materials, including paints, metals, optical windows, and leaves.
机译:材料的光散射特征和吸光度在各种工程应用中都很重要,特别是对于那些与光学遥感有关的应用。约翰·霍普金斯大学应用物理实验室已开发出一种实验功能,可以测量平面内双向散射分布函数,以检索材料的光学特性。这些测量以高角度分辨率得到支持,其波长范围从紫外线到长波红外。已经开发了模型,以适合在一定入射角范围内的朗伯,漫反射,近镜面反射和镜面散射。然后可以通过对建模的BSDF进行分析来确定有用的材料属性。显示了多种材料的光学表征结果,包括油漆,金属,光学窗户和树叶。

著录项

  • 来源
  • 会议地点 San Diego CA(US)
  • 作者单位

    Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD,rnUSA 20723;

    Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD,rnUSA 20723;

    Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD,rnUSA 20723;

    Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD,rnUSA 20723;

    Johns Hopkins University Applied Physics Laboratory, 11100 Johns Hopkins Rd, Laurel, MD,rnUSA 20723;

  • 会议组织
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 光学;
  • 关键词

    surface scattering; BRDF; BSDF;

    机译:表面散射BRDF;自卫队;

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