西安交通大学电子与信息工程学院,西安,710049
网络首发:2010-08-10,
纸质出版:2010
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杨艺, 韩崇昭, 韩德强. 利用特征子空间评价与多分类器融合的高光谱图像分类[J]. 西安交通大学学报, 2010,44(8):20-24.
Hyperspectral Image Classification Based on Feature Subspace Evaluation and Multiple Classifier Fusion[J]. 2010, 44(8): 20-24.
为应对高光谱图像分类中的特征高维度问题
提出一种基于多分类器融合的高光谱图像分类方法.利用高光谱数据相邻波段的高相关性
通过自适应子空间分解产生多个特征子空间
进而训练生成子分类器; 利用ReliefF-S算法
对各特征子空间进行评价并生成各子分类器的权重
最终通过加权表决融合实现分类决策.实验表明
所提方法可有效规避高维特征问题并提升分类性能.
A novel approach for hyperspectral image classification is proposed based on fusion of multiple classifiers to deal with the high dimension in applications of hyperspectral image classification. High correlation of neighboring bands of hyperspectral image data is used to generate feature subsets through adaptive subspace decomposition. A modified ReliefF algorithm(ReliefF-S)is proposed to evaluate feature subsets and to generate their corresponding weight values. Member classifiers are trained based on resulting feature subspaces and their weighted majority voting
and then the fusion of multiple classifiers is accomplished. Experimental results show that the proposed approach reduces the dimension of features effectively
and improves the classification performance.
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