Vegetation index calculation method based on double-difference normalization

The invention relates to a vegetation index calculation method based on double-difference normalization and relates to the technical field of remote sensing image processing, thereby solving the problem of poor vegetation information and non-vegetation information distinguishing effect in existing v...

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Bibliographic Details
Main Author LUAN ZHUORAN
Format Patent
LanguageChinese
English
Published 11.05.2021
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:The invention relates to a vegetation index calculation method based on double-difference normalization and relates to the technical field of remote sensing image processing, thereby solving the problem of poor vegetation information and non-vegetation information distinguishing effect in existing vegetation index calculation; the method comprises the following specific steps: obtaining a multispectral remote sensing image subjected to radiation correction and atmospheric correction; selecting three wave bands Nir, R and G from the multispectral remote sensing image; according to the three wave bands Nir, R and G, calculating the vegetation index NTDVI according to the formula: NTDVI=(Nir+G-2*R)/(Nir+R+absolute of G-R). According to the method, the difference value between the green light wave band and the red light wave band of the chlorophyll in the vegetation in the electromagnetic spectrum reflectivity is introduced, so that the distinguishing degree of the vegetation information can be improved, the vege
Bibliography:Application Number: CN202110180023