期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2000
卷号：XXXIII Part B1
页码：193-200
出版社：Copernicus Publications
摘要：A demonstration service has been set up which provides near-real time information on oil slicks in support of national coast guards surveillance. From a 2-year continuous monitoring of busy ship route locations in the Mediterranean, it has been found that every fifth ERS-SAR image contains at least one man-made slick of several kilometers length. At night, the percentage of images showing slicks, increases to about 22%. Due to the many features visible on SAR images from sea areas the correct attribution of dark patches to oil slicks is not easy and needs considerable experience. Useful assistance is provided by semi-automatic image processing tools, those, based on neural network techniques, assess the probability of an operator- proposed object to be an oil slick
