Field site straw extraction method and device based on aerospace remote sensing data fusion

Abstract

The invention provides a field site straw extraction method and device based on aerospace remote sensing data fusion. The method comprises the following steps: acquiring a satellite image and an unmanned aerial vehicle image of a target area; performing image fusion on the satellite image and the unmanned aerial vehicle image to generate a fused image; and based on a conditional random field of spatial-spectral fusion, performing ground feature classification marking according to the vegetation index and the texture parameter calculated by the fused image so as to generate a straw distribution map. According to the method, the advantage of high spatial resolution of an unmanned aerial vehicle image and the advantage of rich spectral information such as short-wave infrared of a satellite image are integrated, and the unmanned aerial vehicle image and the satellite image are fused to generate a fused image with the spectral information such as centimeter-level high spatial resolution and short-wave infrared; and according to the spatial-spectral fusion conditional random field, ground feature classification is carried out by calculating the vegetation index and the texture feature of the fusion image, and rapid and high-precision extraction of the ground straw is realized.

Description

technical field [0001] The invention relates to the technical field of agricultural remote sensing, in particular to a field straw extraction method and device based on air-space remote sensing data fusion. Background technique [0002] The unharvested upright crop straw distributed in the farmland in autumn and winter and the next spring is very likely to be burned, which seriously pollutes the air environment. Quick and accurate acquisition of the spatial distribution of unharvested field crop straw in the field can help the staff realize the control of straw burning, which is beneficial to environmental protection. [0003] UAVs are flexible, low-cost, and can quickly acquire centimeter-level high-resolution RGB images, but have less spectral information, especially the lack of short-wave infrared bands that are sensitive to straw information; satellite remote sensing images have short-wave infrared band information but spatial resolution Low, the extraction of scattered...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a field straw extraction method and device based on air-space remote sensing data fusion, which is used to solve the problem of low efficiency and accuracy of field straw extraction in the prior art

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