HIGH RESOLUTION BOREAL FOREST LAI MAPS USING DUAL POLARIZATION SAR IMAGES

被引：3
|
作者：
Manninen, Terhikki [1 ]
机构：
[1] Finnish Meteorol Inst, Helsinki, Finland
来源：
2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS) | 2012年
关键词：
Albedo; leaf area index; airborne; boreal forest; radiation; PINE;
D O I：
10.1109/IGARSS.2012.6351203
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A method for a leaf area index (LAI) map retrieval based on VV/HH polarization SAR images is presented for boreal forest. LAI estimation is carried out by non-local averaging and a previously derived relationship between LAI and the VV/HH backscattering ratio. When prior information of pixel order with respect to LAI magnitude is available, the microwave based LAI map obtained by non-local averaging is very similar to a corresponding optical image based LAI map. Finding an optimal method for pixel order determination without prior information is still a question of further research, but the first results using simple approaches are promising.
引用
收藏
页码：1680 / 1683
页数：4
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