控制土壤背景的植被指数
首发时间:2009-06-12
摘要:随着遥感的发展,基于遥感影像的植被指数也随之发展。但是,遥感上的植被指数受很多因素的影响,如云、大气和土壤背景等。其中,土壤背景的影响尤为重要,因为这种影响不能简单地用校正来削弱。控制土壤背景的植被指数是一类削弱土壤背景对植被指数影响的植被指数。这类植被指数可以分为两种,一种是基于经验公式的,有SAVI、OSAVI和MSAVI2,另一种是基于土壤线计算的,有PVI、TSAVI和MSAVI。本文对土壤线和这六种植被指数做了详细的介绍。
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Vegetation Index Controlling the Influence of Soil Reflection
Abstract:By the develop of remote sensing, the vegetation index which base on remote image developed. However, some characters of remote sensing become the restriction of the vegetation index’s precision, including cloud, atmosphere and soil reflection. With in these elements, soil reflection is the most important., because the influence of soil reflection can not be weaken simply by correction. Vegetation is related closely to soil, we must reduce the influence of soil if we want the more corrective vegetation index., so that the vegetation index which reduce the influence of soil reflection develop. There are two types of these vegetation index, one bases on experience, such as SAVI, OSAVI and MSAVI2, the other based on the soil line, such as PVI, TSAVI and MSAVI. This paper gives a minute introduction of soil line and these six vegetation indexes.
Keywords: vegetation index soil line SAVI PVI
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No.3309247603512447****
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