Spectral Reflectance Processing via Local Wavelength-Direction Correlations

Xu Guanglang; Gritsevich Maria; Peltoniemi Jouni; Penttila Antti; Wilkman Olli; Ihalainen Olli; Muinonen Karri

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Spectral Reflectance Processing via Local Wavelength-Direction Correlations

机译：通过局部波长方向相关的光谱反射率处理

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摘要

The spectral bidirectional reflectance distribution function (BRDF) maps incident radiation of a surface to its outgoing counterpart at different wavelengths. This function plays a fundamental role in characterizing the various types of earth surfaces. Due to its high dimensionality, the measurements, analysis, and simulation of spectral BRDF are challenging. In this letter, we introduce a new method for processing spectral reflectance using the so-called data-adjacency, i.e., the correlation between adjacent wavelengths and viewing directions. The results show that the benefits of efficient representation, noise reduction, and analysis capability can all be integrated to the data.

机译：光谱双向反射率分布函数（BRDF）将表面的入射辐射映射到其输出对应于不同波长的对应物。该功能在表征各种类型的地面表面时起着基本作用。由于其高维度，光谱BRDF的测量，分析和模拟是具有挑战性的。在这封信中，我们使用所谓的数据邻接，即相邻波长和观察方向之间的相关性来介绍一种用于处理光谱反射率的新方法。结果表明，有效的表示，降噪和分析能力的好处都可以集成到数据中。

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来源
《IEEE Geoscience and Remote Sensing Letters》 |2020年第6期|948-952|共5页
作者
Xu Guanglang; Gritsevich Maria; Peltoniemi Jouni; Penttila Antti; Wilkman Olli; Ihalainen Olli; Muinonen Karri;
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作者单位

Univ Helsinki Dept Phys Helsinki 00100 Finland;

Univ Helsinki Dept Phys Helsinki 00100 Finland|Ural Fed Univ Inst Phys & Technol Ekaterinburg 620002 Russia|Natl Land Survey Finland Finnish Geospatial Res Inst FGI Helsinki 00520 Finland;

Natl Land Survey Finland Finnish Geospatial Res Inst FGI Helsinki 00520 Finland;

Univ Helsinki Dept Phys Helsinki 00100 Finland;

Natl Land Survey Finland Finnish Geospatial Res Inst FGI Helsinki 00520 Finland;

Univ Helsinki Dept Phys Helsinki 00100 Finland;

Univ Helsinki Dept Phys Helsinki 00100 Finland|Natl Land Survey Finland Finnish Geospatial Res Inst FGI Helsinki 00520 Finland;

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原文格式 PDF
正文语种 eng
中图分类
关键词
Remote sensing; spectroradiometers; wavelet transforms;

机译：遥感;光谱辐射计;小波变换;

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Spectral Reflectance Processing via Local Wavelength-Direction Correlations

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