Polarization-characteristic-based laboratory simulated sea surface oil spill detection method
A laboratory simulation and sea surface oil spill technology, applied in the field of laboratory simulation sea surface oil spill detection based on polarization characteristics, can solve the problems of scientific and reliable analysis of the physical mechanism of sea surface oil spill, single data processing, etc., to achieve reliable data , high precision effect
Inactive Publication Date: 2021-03-02
NANJING UNIV OF SCI & TECH
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Previous detection methods such as: visible light method, infrared spectrophotometry, microwave radiometer method, gas chromatography and fluorescence method, etc., are relatively simple in data processing, and cannot make a scientific and reliable analysis of the physical mechanism of sea oil spills
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[0031] The present invention will be further described below in conjunction with accompanying drawing.
[0032] The invention provides a detection method for simulating sea surface oil spill by utilizing the polarization characteristic detection laboratory of the measured object, comprising the following steps:
[0033] Step 1, collecting polarized light images.
[0034] figure 1 It is a structural schematic diagram of a laboratory simulation sea surface oil spill detection system based on polarization characteristics to realize the method of the present invention. Select condensate oil, Yiyang oil, and GII oil as the tested samples to simulate the oil spill pollution on the sea surface, and use water as the tested sample to compare with the oil spilled water surface. Using a parallel light halogen lamp as the light source (1), a beam of right-handed circularly polarized light is obtained through a 632.8nm filter (2) and a polarizer (3); the right-handed circularly polarized...
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The invention discloses a laboratory simulated sea surface oil spill detection method based on the polarization characteristic. The method comprises the following steps: collecting a plurality of groups of polarized light images at different angles in a same oil spilling area; performing data processing on the multiple groups of images to obtain a Mueller matrix of each pixel point of each group of sea surface oil spill images; calculating a Mueller matrix of each pixel point to obtain a Mueller Jones matrix; calculating the measurement value of the polarization optical characteristic of the simulated sea surface oil spill in the laboratory through the Mueller Jones matrix, and comparing the measurement value with a standard value to realize higher-precision sea surface oil spill detection. The method is high in precision and good in reliability.
Description
technical field [0001] The invention relates to the technical field of target detection, in particular to a method for detecting oil spills on a laboratory simulated sea surface based on polarization characteristics. Background technique [0002] With the rapid development of modern industry, oil spills from tankers, the development of coastal and estuary oil deposits, and the discharge of industrial wastewater from refineries will cause water bodies to be polluted by oil, especially in estuary waters and offshore waters, where oil pollution is very prominent, not only It has caused serious environmental pollution to the sea surface, severely damaged the marine ecosystem, affected human health, and caused huge losses to the economy. Therefore, the detection of oil spills on the sea surface and the improvement of detection accuracy have always been the research hotspots of the ecological security of the marine environment. [0003] In traditional target detection methods, ap...
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IPC IPC(8): G01N21/21
CPCG01N21/21
Inventor 任侃吕彦瑶陈钱顾国华钱惟贤路东明程成叶宏量宋聪聪周静马超张大伟
Owner NANJING UNIV OF SCI & TECH