Urban black and odorous water recognition method and device

A technology for black and odorous water bodies and water bodies, which is applied in the measurement of color/spectral characteristics, etc., can solve the problem of inability to distinguish mildly black and odorous water bodies, and achieve the effect of classification and identification.

Active Publication Date: 2019-02-22
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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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

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  • Urban black and odorous water recognition method and device
  • Urban black and odorous water recognition method and device
  • Urban black and odorous water recognition method and device

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Embodiment Construction

[0060] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0061] In the process of implementing the present application, the inventor found that the changes in the remote sensing reflectance of black and odorous water bodies in the three bands of visible light blue, green, and red are more gentle than those of ordinary water bodies, and the baseline of black and odorous water bodies in the green band is high (green band The baseline height refers to the difference between the remote sensing reflectance of the green li...

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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...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/27
CPCG01N21/27
Inventor 申茜张兵姚月七珂珂杨旭朱学练
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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