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Vegetation region hyperspectral image simulation method

A technology of hyperspectral image and simulation method, applied in image data processing, 2D image generation, instruments, etc., can solve the problems of low production cost, high efficiency, and difficulty in obtaining synchronous data, and achieve low production cost, high efficiency, The effect of increasing the amount of information

Active Publication Date: 2017-12-05
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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Problems solved by technology

[0003] The present invention aims at the difficulty in obtaining synchronous data in the process of simulating hyperspectral data based on multispectral data using methods such as classification and abundance inversion, and designs a hyperspectral image simulation method for vegetation areas. The data is used to calculate the vegetation biochemical parameters to obtain the vegetation biochemical parameter image, and then use the typical vegetation radiation transfer model PROSAIL to input the vegetation biochemical parameter map into the model to realize hyperspectral image simulation, obtain high-precision spectral images, and increase the amount of information. Low production cost and high efficiency

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  • Vegetation region hyperspectral image simulation method

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[0032] The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0033] see Figure 1-5 :

[0034] A hyperspectral image simulation method for a vegetation area of ​​the present invention,

[0035] The overall process of the present invention is divided into four parts: "sample data generation module", "model construction module", "biochemical parameter map calculation module", "hyperspectral data simulation module", see figure 1 ,

[0036] the data shows:

[0037] 1. Multispectral image R multi is a three-dimensional matrix: M rows, N columns, L bands;

[0038] 2. The central wavelength array λ(L) of the multispectral image, where λ(i) represents the central wavelength of the i-th band;

[0039] 3. There are a total of L spectral response functions of the multispectral image, f λ(i) (2,nw(i)) is the spectral response function of the i-th band (1(i≤L), which is an array of two columns, the fi...

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Abstract

The present invention relates to a vegetation region hyperspectral image simulation method. Aiming at multispectral data, vegetation biochemical parameters are calculated and vegetation biochemical parameter images are obtained to employ a typical vegetation radiation transfer model PROSAIL to input the vegetation biochemical parameters into the model to realize hyperspectral image simulation and obtain high-precision spectrum images so as to improve the information content, reduce the manufacturing cost and improve the efficiency.

Description

technical field [0001] The invention belongs to a method for simulating a spectral image, in particular to a method for simulating a hyperspectral image in a vegetation area. Background technique [0002] Hyperspectral image simulation is to obtain image data with high spectral resolution through model building and calculation. The existing methods are mainly based on multispectral image data for classification, abundance inversion, and combined with ground object spectral data for spectral mapping or linear To obtain hyperspectral images by mixing, this method requires high-precision synchronous spectral data to ensure the accuracy of image simulation, and is limited by the algorithm. Spectral subdivision is mainly realized in multispectral data simulation hyperspectral image data, but there is no real Increase the amount of information. Contents of the invention [0003] The present invention aims at the difficulty in obtaining synchronous data in the process of simulat...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T11/00
CPCG06T11/001
Inventor 张文娟莫云华张兵陈正超高连如
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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