Remote sensing identification method and device for urban black and odorous water bodies

Abstract

The embodiment of the present invention discloses a method and device for remote sensing identification of black and odorous water bodies in cities, which acquires remote sensing data of points to be identified on the water surface; calculates the spectral tri-stimulus value of the point to be identified on the water surface based on the obtained remote sensing data; calculates the tri-stimulus value based on the spectral tri-stimulus value The saturation of the point to be identified on the water surface; if the saturation is less than the preset threshold, it is determined that the point to be identified on the water surface is a black and odorous water body. It can be seen that the remote sensing identification method and device for black and odorous water bodies in cities provided by the embodiments of the present invention calculate the saturation based on remote sensing data, and identify whether the water body is black and odorous water bodies based on the saturation, which essentially reveals the difference between black and odorous water bodies in cities. The difference in water bodies realizes the identification of urban black and odorous water bodies, and fills the gap in remote sensing identification methods for urban black and odorous water bodies.

Description

technical field [0001] The invention relates to the technical field of remote sensing, and more specifically, to a method and device for remote sensing identification of urban black and odorous water bodies. Background technique [0002] During the process of urban prosperity, industrial, agricultural and domestic wastewater made the river water in the built-up area of ​​the city no longer clear, and even turned black in color and emitted foul odor, becoming an urban black and odorous water body. Traditional research on black and odorous water bodies is mainly related to the environment and ecology, focusing on the analysis and identification of biochemical causes. Research on the monitoring of urban black and odorous water bodies by means of remote sensing is very rare. [0003] In terms of using remote sensing images to identify black and odorous water bodies, remote sensing images are currently used to identify "lake floods". Lake floods can be considered as a special kin...

AI Technical Summary

Problems solved by technology

[0004] In the process of realizing the present invention, the inventor found that the current method for identifying lake floods has poor versatility, and can only identify lake flood-like black and odorous water bodies, but cannot identify urban black and odorous water bodies

Images