约束型贝叶斯网络在遥感图像解译中的应用方法研究
陶建斌, 舒宁
武汉大学遥感信息工程学院|武汉430079
A STUDY OF THE RESTRICTED BAYESIAN NETWORK IN THE
INTERPRETATION OF REMOTE SENSING IMAGES
TAO Jian-Bin, SHU Ning
School of Remote Sensing and Information Engineering, Wuhan University,Wuhan 430079,China
摘要 采用一种带有约束条件的贝叶斯网络来构造分类器,即特征节点被约束为类节点的子节点,子节点间允许有不同的连接关系
,并将约束型贝叶斯网络的几种典型模型——NB、TAN、BAN用于遥感图像的解译中。通过评价结构的似然函数得到网络结构,综合特
征节点和类别节点的拓扑和概率统计信息学习得到分类器。将这些模型用于多光谱和高光谱影像的分类,并就其性能进行探讨。
Abstract :The Bayesian network is in fact the Markov blanket of the class node in the classification theme. This
paper deals with a Bayesian network with constraint, in which all feature nodes must be child nodes of class node,
the child nodes can have different relationships with each other, and then some generally-used models of restricted
Bayesian network, namely NB, TAN and BAN, are used to interpret remote sensing images. From the evaluation of the
likelihood function of structures, we can obtain net structure and get the classifier synthesizing the topology and
probability statistical information of feature nodes and the class node. The authors applied these models to the
classification of remote sensing images and discussed their performance.
收稿日期: 2008-10-08
出版日期: 2009-06-12
基金资助: 973项目“对地观测数据—空间信息—地学知识的转化机理”(2006CB701303)及(2004CB318206)共同资助。
通讯作者:
陶建斌(1975- ),男,博士生,研究方向为高光谱影像智能化解译。
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