| 摘要: |
| 为了利用海冰图像识别技术获取海冰冰况信息, 探索了利用高斯混合模型进行海冰图像分割的技术途径, 描述了具体算法, 并利用高斯混合模型的最大期望值(EM)算法以及最小描述长度(MDL)准则对渤海海冰图像进行目标提取。研究结果表明, 该方法可以很好地实现海冰信息的有效提取和海冰图像的有效分割, 从而证明了建立在图像分割技术之上的海冰图像识别技术是处理海冰图像进而获得冰型、冰量等冰况信息的有效技术手段。 |
| 关键词: 海冰 高斯混和模型 图像分割 非监督聚类 |
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| 基金项目:中国海洋石油总公司科技发展项目(C/KJFJDSY 003-2008) |
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| Sea ice image segmentation with unsupervised clustering based on the Gaussian mixture model |
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| Abstract: |
| In order to obtain sea ice data from in situ video images, sea ice images were processed with image segmentation technology based on the Gaussian mixture model (GMM). Image segmentation of the Bohai sea ice with unsupervised clustering was realized by the expectation-maximization (EM) algorithm of GMM and minimum description length (MDL) criterion on the sea ice images for object extraction. The calculation procedures of sea ice image segmentation was described. The results indicate that GMM is effective in sea ice image segmentation and sea ice data extraction. It is concluded that sea ice image recognition, based on image segmentation, is an effective technology to process sea ice image for extraction of data on sea ice type and abundance. |
| Key words: sea ice, Gaussian mixture model, image segmentation, unsupervised clustering |
