Urban black and odorous water recognition method and device

Abstract

The embodiment of the invention discloses an urban black and odorous water recognition method and device. The method comprises the following steps: calculating the interpolation reflectivity of a water level to-be-recognized point in a green light wave band according to remote sensing reflectivity of a bluelight wave band and the remote sensing reflectivity of a redlight wave band of the water level to-be-recognized point; calculating the black and odorous water grading index according to the interpolation reflectivity of the green light wave band and the interpolation reflectivity of the water level to-be-recognized point as well as the remote sensing reflectivity of the redlight wave band; and judging whether the water level to-be-recognized point is urban black and odorous water or notaccording to the black and odorous water grading index and grading the urban black and odorous water when the water level to-be-recognized point is urban black and odorous water or. The method not only recognizes the urban black and odorous water effectively, but also recognizes the urban black and odorous water in a graded manner.

Description

technical field [0001] This application relates to the technical field of remote sensing image processing, and more specifically, to a method and device for identifying black and odorous water bodies in cities. Background technique [0002] Water bodies polluted to a certain extent in urban built-up areas are called black and odorous water bodies. Urban black and odorous water not only brings extremely poor sensory experience to the masses, but also directly affects the production and life of the masses. Therefore, it is necessary to monitor urban black and odorous water bodies for treatment. [0003] With the launch of domestic high-resolution satellites such as GF series and ZY series, my country's remote sensing monitoring technology has reached the sub-meter level, and remote sensing methods can be used to monitor black and odorous water bodies in cities in a large scale, in real time, and quickly. [0004] However, the current black and odorous water body identificati...

AI Technical Summary

Problems solved by technology

[0004] However, the current black and odorous water body identification method can only distinguish whether it is black and odorous water body, but for black and odorous water body, it cannot distinguish whether it is severe black and odorous water body or mild black and odorous water body

Images