Prof. Ruiqing Niu Profile

Prof. Ruiqing Niu

at China Univ of Geosciences

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Proceedings Article | 26 October 2013 Paper

Marine oil pollution detection with MODIS data

Yanfang Dong, Lina Xu, Ruiqing Niu, Shenghui Fang, Kang Xiao

Proceedings Volume 8921, 892106 (2013) https://doi.org/10.1117/12.2030393

KEYWORDS: MODIS, Remote sensing, Image enhancement, Image segmentation, Ocean optics, Sensors, Image analysis, Atmospheric corrections, Reflectivity, Water

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Marine oil pollution is one of the most serious pollutants on the damage to the contemporary marine environment, with the characteristics of a wide range of proliferation, which is difficult to control and eliminate. As a result, marine oil pollution has caused huge economic losses. The remote sensing sensors can detect and record the spectral information of sea film and background seawater. Here we chose to use 250-resolution MODIS data in the area of Dalian Xingang, China where ill spill case was happened on April.4th, 2005. Based on the image pre-processing and enhanced image processing, the spectral features of different bands were analyzed. More obvious characteristics of the spectral range of film was obtained. The oil-water contrast was calculated to evaluate the feature of oil at different spectral band. The result indicates that IR band has the maximum value of reflective. So band ratio was used between 400nm and 800nm and the original radiance images were used between 800nm and 2130nm. In order to get the most obvious images of entropy windows of different sizes were tested in order to decide the optimum window. At last, a FCM fuzzy clustering method and image texture analysis was combined for the MODIS images of the oil spill area segmentation. At last, the oil spill zone was estimated, the results were satisfied.

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