Optimal band selection for high dimensional remote sensing data using genetic algorithm | |
Zhang, Xianfeng ; Sun, Quan ; Li, Jonathan | |
2009 | |
英文摘要 | A 'fused' method may not be suitable for reducing the dimensionality of data and a band/feature selection method needs to be used for selecting an optimal subset of original data bands. This study examined the efficiency of GA in band selection for remote sensing classification. A GA-based algorithm for band selection was designed deliberately in which a Bhattacharyya distance index that indicates separability between classes of interest is used as fitness function. A binary string chromosome is designed in which each gene location has a value of 1 representing a feature being included or 0 representing a band being not included. The algorithm was implemented in MATLAB programming environment, and a band selection task for lithologic classification in the Chocolate Mountain area (California) was used to test the proposed algorithm. The proposed feature selection algorithm can be useful in multi-source remote sensing data preprocessing, especially in hyperspectral dimensionality reduction. ? 2009 SPIE.; EI; 0 |
语种 | 英语 |
DOI标识 | 10.1117/12.847907 |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/312367] ![]() |
专题 | 地球与空间科学学院 |
推荐引用方式 GB/T 7714 | Zhang, Xianfeng,Sun, Quan,Li, Jonathan. Optimal band selection for high dimensional remote sensing data using genetic algorithm. 2009-01-01. |
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