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A Remote Sensing Identification Method for Marine Oil Spill Emulsion Based on Group Spectral Features

A spectral feature and remote sensing recognition technology, which is applied in the direction of optical testing for flaws/defects, can solve the problems of large water color background noise and difficult oil spill pollution areas, and achieve the effects of reducing time, improving real-time monitoring efficiency, and ensuring monitoring accuracy

Active Publication Date: 2020-10-09
NANJING UNIV
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: for the problems that it is difficult to monitor artificially in the oil spill polluted area, the background noise of the water color is large, the visual characteristics of different oil spill emulsions and Sargassum are the same, the spectral shape is similar, and it is difficult to distinguish at present. Hyperspectral remote sensing images, through the detection of characteristic spectra of different types of oil spill emulsions or sargassum's unique groups, realize their identification and classification (distinguishing), which is of great significance for the monitoring of marine oil spill pollution

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  • A Remote Sensing Identification Method for Marine Oil Spill Emulsion Based on Group Spectral Features
  • A Remote Sensing Identification Method for Marine Oil Spill Emulsion Based on Group Spectral Features
  • A Remote Sensing Identification Method for Marine Oil Spill Emulsion Based on Group Spectral Features

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Embodiment Construction

[0039] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0040]This embodiment is applied to 4 scenes of AVIRIS airborne hyperspectral image data, with a spectral range of 350-2400nm and a spectral resolution of 10nm; areas 1-3 are research areas for different types of oil spill emulsions, and area 4 is a research area for Sargassum; The hyperspectral images of the above-mentioned 4 scenes implement the present invention, and the distinguishing and identifying effects between classes (oil spill emulsion and sargassum) and within class (two types of oil spill emulsions) are accurate; based on the present invention, the Sargassum area is given Differentiate the result diagram to illustrate that the presen...

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Abstract

The invention relates to a method for remote sensing identification of a marine oil spill emulsion based on the spectral characteristics of groups. Unique spectral characteristics caused by oil-wateremulsion groups (-CH and -OH), and distribution modes thereof are used to quickly, accurately and efficiently identify different types of oil-water emulsions in hyperspectral images and achieve classification. Compared with the traditional observation means, the method can provide timely and efficient guidance information, can accurately identify and classify different types of the marine oil spill emulsions only based on the accurate radiation-corrected and atmosphere-corrected hyperspectral remote sensing reflectance image without wasting a lot of manpower and material resources, and can effectively avoid misjudgment as gulfweed (gulfweed is similar to some oil spill emulsions in visual characteristics and spectral form characteristics, as illustrated by examples in the description). Themethod can meet the demands of oil spill monitoring and improve the working efficiency of oil spill pollution control.

Description

technical field [0001] The invention relates to the technical field of remote sensing marine oil spill monitoring, in particular to a hyperspectral remote sensing identification and classification method for different types of marine oil spill emulsions based on group spectral characteristics. Background technique [0002] According to incomplete estimates, 47% of marine oil spills come from human activities and occur in many processes including oil exploration, processing, and transportation. The resulting oil spill pollution will seriously endanger the marine ecological environment and cause huge economic losses. loss. In addition, under the comprehensive influence of wind, waves, currents and other factors, oil spill pollution will also cause large-scale and long-term harm to seawater, sea surface atmosphere, seabed, and coastal zones. For example, the 2010 deep-sea oil well spill in the US Gulf of Mexico and the 2010 Dalian Xingang oil spill in China have caused huge en...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/94
CPCG01N21/94
Inventor 焦俊男石静陆应诚
Owner NANJING UNIV
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