ESTIMATION OF SUBPIXEL VEGETATION COVER USING RED INFRARED SCATTERGRAMS

被引：57

作者：

JASINSKI, MF

EAGLESON, PS

机构：

[1] NASA/Goddard Space Flight Center, Laboratory for Terrestrial Physics, Greenbelt, MD 20771, Hydrological Sciences Branch

[2] Ralph M. Parsons Laboratory for Water Resources and Hydrodynamics, Department of Civil Engineering, Massachusetts Institute of Technology, Cambridge

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 1990年 / 28卷 / 02期

关键词：

Canopy-soil reflectance model; scattergram; semi-vegetated landscapes; stochastic processes; subpixel variability; tasseled cap;

D O I：

10.1109/36.46705

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

The bulk properties of discontinuous vegetation canopies are estimated at subpixel scales by applying the method of moments to a linear stochastic geometric model of canopy-soil reflectance, and one set of multispectral observations without ground truth. The procedure involves the formulation of conditional moments for subsets of pixels that possess similar properties, and which can be identified through their common orientation in red-infrared scattergrams. The analysis is facilitated by assuming geometric similarity among the canopy elements and by formulating a sampling scale ratio in terms of the bulk geometric scales of the canopy and the pixel. Three versions of the method are demonstrated using two simulated scenes and an actual forested watershed for which aerial radiometric data and corresponding ground truth were obtained. © 1990 IEEE

引用

页码：253 / 267

页数：15

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