Method for extracting pine information of single plant infected with pine wood nematode disease based on RGB image

Abstract

The invention discloses a method for extracting pine wood information of a single plant infected with pine wood nematode disease based on an RGB image. The method comprises the following steps: S1, constructing pine wood nematode disease remote sensing indexes based on R, G and B wavebands; S2, extracting pine wood nematode disease epidemic wood pixel-level samples according to the pine wood nematode disease epidemic wood remote sensing indexes; S3, filtering the pine wood nematode disease epidemic wood pixel-level sample; and S4, extracting single tree information of the pine wood nematode disease epidemic wood pixel-level sample, and completing extraction of pine wood information of single plant infected with pine wood nematode disease. According to the method, only three most common visible light band images with least aerial remote sensing of the unmanned aerial vehicle are utilized, vegetation index extraction based on spectral characteristics is carried out, and single plant epidemic tree identification and information extraction are carried out by utilizing the spectral characteristics and high spatial resolution characteristics of the unmanned aerial vehicle.

Description

technical field [0001] The invention belongs to the technical field of pine wood nematode diseased pine wood, and in particular relates to a method for extracting information of a single plant infected with pine wood nematode disease pine wood based on RGB images. Background technique [0002] Remote sensing technology has the characteristics of long-distance, large-area and no direct contact, and has been widely used in the field of forest monitoring. At present, the detection technology of pine wilt disease (pine wood nematode) pine trees based on remote sensing technology usually uses multi-spectral and hyperspectral satellite images, combined with typical spectral features, to propose a suitable algorithm or manually set the spectral feature threshold technology to automatically identify the disease pine. However, such technology has the following deficiencies or limitations: (1) In cloudy and rainy areas in China, it is difficult to obtain high-resolution With high-sp...

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Problems solved by technology

[0005] The purpose of the present invention is to solve the problem of information extraction of pine trees infected with pine wood nematode from a single plant, and propose a method for extracting information from pine trees infected with pine wood nematode from a single plant based on RGB images

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