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| 汶川地震前上空的地震云分析及自动检测研究 | |
| 引用本文： | 邹伟.汶川地震前上空的地震云分析及自动检测研究[J].科学技术与工程,2011(22). |
| 作者姓名： | 邹伟 |
| 作者单位： | 1. 上海交通大学航空航天学院,上海,200240 2. 国家卫星气象中心,北京,100081 3. 上海交通大学船舶海洋与建筑工程学院,上海,200240 |
| 摘 要： | 地震对于人类的生产生活有着巨大影响，如何准确地预测地震意义重大。本文利用FY-2D卫星云图序列图像研究了汶川地震前震区上空的地震云，在此基础上采用更高分辨率的MODIS数据进行地震云的检测研究，分别利用高斯马尔可夫场和高斯混合模型来实现云图的纹理分割和地震云异常检测。实验结果表明，此方法可有效检测出震区上空的地震云。 |
| 关 键 词： | 地震云 FY-2D MODIS 高斯马尔可夫场 高斯混合模型 |
| 收稿时间： | 4/14/2011 4:27:19 PM |
| 修稿时间： | 4/29/2011 6:09:44 PM |
The analysis and automatic detection of earthquake cloud before Wenchuan Earthquake |
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| zou wei.The analysis and automatic detection of earthquake cloud before Wenchuan Earthquake[J].Science Technology and Engineering,2011(22). | |
| Authors: | zou wei |
| Institution: | ZOU Wei1,LI Yuan-xiang1,SHI Chun-xiang2,DENG Xue-yuan3(School of Aeronautics & Astronautics,Shanghai Jiaotong University1,Shanghai 200240,P.R.China,National Satellite Meteorological Center,CMA2,Beijing 100081,School of Naval Architecture,Ocean and Civil Engineering,Shanghai Jiaotong University3,P.R.China) |
| Abstract: | Earthquake has a huge impact on human life, how to accurately predict earthquakes is of great significance. In this paper, we study the earthquake cloud over the area of Wenchuan by FY-2D satellite cloud image sequences. On this basis, MODIS data with higher resolution is used for further verifying the earthquake cloud. Gaussian Markov Field (GMF) and Gaussian Mixture Model (GMM) are employed to achieve cloud texture segmentation and seismic anomaly detection respectively. Experimental results show that this method can effectively detect the earthquake cloud. |
| Keywords: | Earthquake cloud FY-2D MODIS GMF GMM |
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