Oncomelania breeding place recognition method based on spectral characteristics

Abstract

The invention discloses an oncomelania breeding place recognition method based on spectral characteristics, and belongs to the technical field of remote sensing images. The method comprises the following steps: obtaining a multi-period multi-spectral satellite remote sensing image of an recognition area; determining a'winter-land and summer-water 'area of the recognition area; obtaining oncomelania breeding point coordinates and non-oncomelania breeding point coordinates of the recognition area; making a spectrum curve comparison diagram; deleting the gray value distortion image; the reflection and absorption characteristics of each wave band at the oncomelania breeding point are analyzed; the reflection and absorption characteristics of each wave band at non-oncomelania breeding points are analyzed; determining wave bands participating in oncomelania index construction; constructing oncomelania indexes; calculating an oncomelania index, a vegetation index and a humidity index; performing threshold segmentation on the image; the recognition precision of the oncomelania breeding place is calculated according to the overall precision and the Kappa coefficient test index; determining an optimal index; making an oncomelania breeding place map according to the recognition result of the optimal index; and oncomelania breeding place recognition based on spectral characteristics is completed.

Description

technical field [0001] The invention discloses a method for identifying oncomelania breeding grounds based on spectral characteristics, and belongs to the technical field of photogrammetry and remote sensing. Background technique [0002] Schistosomiasis is a natural source of disease and an endemic zoonotic parasitic disease. Wherever schistosomiasis is prevalent, oncomelania must breed. Oncomelania is the only intermediate host of schistosomiasis. The key measure of the strategy to eliminate schistosomiasis is to determine the breeding places of schistosomiasis. . The methods to identify the breeding sites of Oncomelania mainly include field investigation and remote sensing monitoring. It is time-consuming and labor-intensive to find the breeding locations of Oncomelania snails in the traditional field, and the investigation results are disturbed by human factors. Use remote sensing technology to monitor oncomelania breeding grounds, verify the monitoring results with ac...

AI Technical Summary

Problems solved by technology

[0005] The invention discloses a method for identifying oncomelania breeding sites based on spectral characteristics, in order to solve the problem in the prior art that the identification of oncomelania breeding sites does not rely on the spectral characteristics of the oncomelania site itself

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