Polarized Spectral Measurement and Analysis of Sedum Spectabile Boreau Using a Field Imaging Spectrometer System
Polarized Spectral Measurement and Analysis of Sedum Spectabile Boreau Using a Field Imaging Spectrometer System
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DOI：
10.1109/jstars.2013.2255862
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发表时间：
2013-04
影响因子：
5.5
通讯作者：
Taixia Wu;Lifu Zhang;Y. Cen;Changping Huang;Xuejian Sun;Hengqian Zhao;Q. Tong
中科院分区：
文献类型：
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作者：
Taixia Wu;Lifu Zhang;Y. Cen;Changping Huang;Xuejian Sun;Hengqian Zhao;Q. Tong
偏振高光谱成像是一种结合了偏振和高光谱特性优点的新型遥感方法。基于自行研制的偏振场成像光谱仪系统(FISS-P)，采集了景天叶片的偏振高光谱图像。对漫反射标准白板的偏振分析表明，FISS-P具有准确的偏振测量结果。本研究分析了10个相关的极化参数(I、Q、U、DoLP、AOP、R 0、R 60、120、R、R)。麦冬叶片的偏振角(AOP)光谱曲线没有独特的光谱特征。线偏振度(DoLP)光谱曲线具有明显的光谱特征。然而，叶片的DoLP和光谱反射率曲线呈现出相反的趋势。同一叶片的不同部分，或不同的光叶，产生不同的光谱曲线形状。对5个反射率参数的分析表明，R<sup>0</sup>、<I>R</sup><60</sup>、<I>R</sup><120</sub>、<R<sup>R</sup><sup>I</sup>和<I>R</sup>在所有光谱和空间方面都是一致的。
Polarized hyperspectral imaging is a new remote sensing method that combines the benefits of polarization and hyperspectral characteristics. Based on a new self-developed polarized field imaging spectrometer system (FISS-P), we collected polarized hyperspectral images of leaves of Sedum spectabile Boreau. Polarization analysis of the diffuse reflectance standard white plate indicated that the FISS-P produced accurate polarization measurements. Ten related polarization parameters (<i>I</i>, <i>Q</i>, <i>U</i>, DoLP, AoP, <i>R</i><sub>0</sub>, <i>R</i><sub>60</sub>, <i>R</i><sub>120</sub>, <i>R</i>, <i>R</i><sub>I</sub>) were analyzed in this study. The angle of polarization (AoP) spectral curves of the S. spectabile leaf had no unique spectral features. The degree of linear polarization (DoLP) spectral curves displayed distinct spectral characteristics. However, the DoLP and spectral reflectance curves of the leaf displayed contrasting trends. Different parts of the same leaf, or different S. spectabile leaves, produced different spectral curve shapes. Analysis of the five reflectance parameters demonstrated that <i>R</i><sub>0</sub>, <i>R</i><sub>60</sub>, <i>R</i><sub>120</sub>, <i>R</i><sub>I</sub>, and <i>R</i> were consistent for all spectral and spatial aspects.