A compound method for correcting vegetation information

doi:10.13474/j.cnki.11-2246.2022.0170.

Abstract

Abstract: Remote sensing technology can quickly obtain a large range of vegetation information. However, there exist some problems such as mixed classification of vegetation information. Therefore, a compound method for correcting vegetation information is established in the form of composite wavebands on the basis of spectral difference characteristics of ground objects. It is found that in terms of enhancing vegetation information, the method makes the information of high-cover vegetation information above 0.7, and alleviates the phenomenon of NDVI_radover-saturation in high-cover vegetation. In terms of restraining non-vegetation features, the method separate vegetation from non-vegetation. making the information of most non-vegetation features information below zero. Additionally, in terms of anti-terrain, the method introduces δ/Red factor, reducing the impact of terrain on vegetation extraction to some extent.

Key words: vegetation, spectrum analysis, topography, vegetation index, remote sensing image

CLC Number:

P237

LI Maolin, YAN Qingwu, ZHONG Xiaoya. A compound method for correcting vegetation information[J]. Bulletin of Surveying and Mapping, 2022, 0(6): 49-54142.

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