Multifractal filtering method for extraction of ocean eddies from remotely sensed imagery |
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| Authors: | GE Yong DU Yunyan CHENG Qiuming LI Ce |
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| Affiliation: | State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences & Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences & Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China;Department of Earth and Space Science and Engineering, York University, Toronto, m3J 1P3, Canada;State Key Laboratory of Geo-Processes and Mineral Resources, China University of Geosciences, Beijing 100083, China;State Key Laboratory of Resources and Environmental Information System, Institute of Geographic Sciences & Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China |
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| Abstract: | Traditional methods of extracting the ocean wave eddy information from remotely sensed imagery mainly use the edge detection technology such as Canny and Hough operators. However, due to the complexities of ocean eddies and image itself, it is sometimes difficult to successfully detect ocean eddies using these methods. A multifractal filtering technology is proposed for extraction of ocean eddies and demonstrated using NASA MODIS,SeaWiFS and NOAA satellite data set in the typical area, such as ocean west boundary current. Results showed that the new method has a superior performance over the traditional methods. |
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| Keywords: | remotely sensed imagery extraction of ocean eddies multifractal filtering |
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