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测量单个Coffea canephora叶子的光谱-极度测量双向反射因子数据集

Begzsuren Tumendemberel¹, Luvsanbat Khurelbaatar¹, Yukihiro Takahashi²

¹Department of Physics, National University of Mongolia, Ulaanbaatar, Mongolia.

|February 29, 2024

概括

这项研究通过分离光反射,将两极化方法与叶子双向反射分布函数 (BRDF) 联系起来. 研究人员使用液晶调节过器 (LCTF) 摄像头测量咖啡叶的BRDF,从而实现了详细的表面分析.

科学领域:

植物科学植物科学
光学是什么?光学是什么?光学是什么?
遥感是一种远程传感.

背景情况:

双向反射分布函数 (BRDF) 对于理解表面如何反射光线至关重要.
极化技术提供了一种方法来区分光谱和分散反射.
准确的BRDF测量对于遥感和农业监测等应用至关重要.

研究的目的:

为了将两极化技术与叶子 BRDF 的定向性质联系起来.
为了区分单一叶子的镜面和扩散反射功率组成部分.
建立详细的叶面光学属性分析方法.

主要方法:

使用液晶调节过器 (LCTF) 摄像头捕捉了Coffea canephora (咖啡) 的单片叶BRDF.
在460-780nm波长范围内使用线性偏振器.
利用多光谱LCTF摄像机的能力来切割特定的叶面区域进行分析.
在实验室环境中开发了一种自动气球计系统,用于在实验室中进行完整的BRDF测量.

主要成果:

用LCTF相机展示了极化成像的能力,以捕获定向反射率数据.
成功地区分了咖啡叶表面的镜面和分散反射特性.
验证了使用LCTF摄像系统精确地选择和分析叶面积的潜力.

结论:

极化技术,当与LCTF多谱成像相结合时,为分析叶子BRDF提供了强大的方法.
这种方法可以更详细地了解叶子表面的光物质相互作用.
开发的仪系统可方便进行全面的BRDF测量,以改善植物生物物理参数的检索.

关键词:

气球测量仪 (Goniometer) 是一个气球计.两极化的偏化一个单片叶的BRDFDF.频谱成像技术的使用.

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