A marine oil spill detection method based on spectral imaging technology

Abstract

The invention discloses a method for detecting oil spilling at sea based on a spectral imaging technology. The method comprises the following steps: S01) preparing a reference sample of an oil-water mixed solution; S02) establishing a reference sample spectral database; S03) reading to-be-measured data cubes; S04) identifying the spilled oil types; S05) predicting the oil thickness; and S06) calculating the oil spillage amount. The method uses the spectral imaging technology for qualitative and quantitative analysis on the spilled oil at sea, the method combines the spectrum characteristics such as position, width and amplitude of a spectral absorption peak and performs identification on the types of the spilled oil at sea based on a spectral coupling method, and according to a linear mapping relation between the spectral data and oil thickness, a least square method is employed for estimating the oil thickness and calculating the fuel quantity of the spilled oil at sea.

Description

technical field [0001] The invention belongs to the technical field of target detection and recognition, and in particular relates to a sea oil spill detection method using spectral imaging technology. Background technique [0002] The ocean area occupies about 71% of the earth's surface area. It is the most stable ecosystem on the earth, and plays a huge role in regulating the global ecological environment with its vast space and abundant resources. However, with the increase of the scope of human activities, marine pollution is becoming more and more serious, and marine oil spills from ships, oil platforms, wars, etc. are one of the main factors affecting marine pollution. [0003] For oil spills at sea, the positions and shapes of the absorption peaks of different oil species detected by Fourier transform imaging spectrometer are different; and the absorption peak shapes of the spectrum of the same oil species are also different under different oil thickness conditions. ...

AI Technical Summary

Problems solved by technology

[0004] Although traditional chemical analysis methods can accurately identify the type of oil spilled at sea, it is impossible to count the amount of oil spilled at sea in a large area, because the distribution of oil spilled at sea is irregular and uneven Therefore, it is impossible to calculate the amount of oil spilled with the method of "partial representation of the whole"

Although a single infrared thermal imaging technology can roughly calculate the area of ​​the oil spill area, it is useless in identifying the type of oil spilled and estimating the oil thickness.

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