用航空POLDER测量仪获取的方向性信息增强对北方森林冠层的识别（英文）

Ｐ．Ｂｉｃｈｅｒｏｎ; Ｍ．Ｌｅｒｏｙ; Ｏ．Ｈａｕｔｅｃｏｅｕｒ

doi:CNKI:SUN:YGXB.0.1997-S1-022

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用航空POLDER测量仪获取的方向性信息增强对北方森林冠层的识别（英文）
Enhanced Discrimination of Boreal Forest Covers Using Directional Signatures Measured by the  Airborne POLDER Instrument
1997年第S1期
纸质出版：1997
DOI： CNKI:SUN:YGXB.0.1997-S1-022
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[1]Ｐ．Ｂｉｃｈｅｒｏｎ,Ｍ．Ｌｅｒｏｙ,Ｏ．Ｈａｕｔｅｃｏｅｕｒ.用航空POLDER测量仪获取的方向性信息增强对北方森林冠层的识别(英文)[J].遥感学报,1997(S1):157-162. DOI： CNKI:SUN:YGXB.0.1997-S1-022.

P. Bicheron, M. Leroy, O. Hautecoeur. Enhanced Discrimination of Boreal Forest Covers Using Directional Signatures Measured by the  Airborne POLDER Instrument[J]. Journal of Remote Sensing, 1997, (S1). DOI： CNKI:SUN:YGXB.0.1997-S1-022.

摘要

ＰＯＬＤＥＲ（地球反射极化和方向）仪器在ＢＯＲＥＡＳ实验中曾搭载ＮＡＳＡ的一架Ｃ１３０飞机飞行。在ＢＯＲＥＡＳ的南部地区，ＰＯＬＤＥＲ获取了各种实验场地上的ＢＲＤＦ测量值。森林覆盖地区的大的热点特征，以及十个地区上的镜面反射分量得到了描述。该文通过ＰＯＬＤＥＲ的测量数据，对向常规的光谱特征中加入通过遥感获得的方向性特征后，对各种森林覆盖的分类和区分能力的提高给出了定量化的解。当将方向信息加入常规光谱信息后，采用无监督分类时，类间耦合矩阵的各项显著减小（减小倍数为２－５倍）。这一事实证明了用遥感方向特征可以增强对ＢＯＲＥＡＬ森林覆盖的区分能力。

Abstract

The POLDER instrument （POLarization and Directionality of Earth Reflectances） flew during the BOREAS experiment onboard a C130 aircraft from NASA. BRDF measurements were obtained by POLDER on various supersites in the South area of the BOREAS. Large hot spot features over forest covers

and specular components over fen areas are described. The paper quantifies with airborne POLDER data the improvement of classification and discrimination of various forest covers when remotelysensed directional signatures are added to the more conventional spectral signatures. When using non supervised classifications

the terms of interclass confusion matrices are much lower （by a factor between 2 and 5） when directional information is added to the conventional spectral information. This proves that directional signatures enhance the discrimination of boreal forest covers by remote sensing.

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