| 一个快速Kalman滤波方法及其在GPS动态数据处理中的应用 |
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| 引用本文： | 董绪荣,陶大欣.一个快速Kalman滤波方法及其在GPS动态数据处理中的应用[J].测绘学报,1997,26(3):221-227,267. |
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| 作者姓名： | 董绪荣 陶大欣 |
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| 作者单位： | 郑州测绘学院 |
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| 摘 要： | 本文首先建立起利用Ｋａｌｍａｎ滤波进行动态ＧＰＳ数据处理的数学模型。然后，基于矩阵外积概念设计了一个很有实用价值的Ｋａｌｍａｎ滤波算法，并应用于动态ＧＰＳ数据处理问题。理论分析和计算结果表明：该方法不仅数值稳定性高，而且快速高效，所用ＣＰＵ时间仅为标准Ｋａｌｍａｎ滤波的八分之一。
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| 关 键 词： | Kalman滤波 矩阵外积 GPS 动态数据处理 |
A STUDY OF TEXTURE AND DESCRIPTION FOR AERIAL IMAGES |
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| Zheng Zhaobao,Zhou Yueqin.A STUDY OF TEXTURE AND DESCRIPTION FOR AERIAL IMAGES[J].Acta Geodaetica et Cartographica Sinica,1997,26(3):221-227,267. |
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| Authors: | Zheng Zhaobao Zhou Yueqin |
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| Abstract: | On the basis of former studies, this paper presents to regard neighbour pixels around a central pixel not the combination of the neighbour pixels as the texture primitives. The statistic regulation of gray values of the texture primitives reflects features of image texture. The features may be deseribed by Markov Random Field (MRF) and their parameters may be used as the basis for texture classification. Experimental analysis shows that the method presented in the paper is reasonable. |
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| Keywords: | Texture definition of aerial image Texture deseription Markov Random Field (MRF) |
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