高光谱成像
冗余(工程)
计算机科学
排名(信息检索)
相似性(几何)
选择(遗传算法)
模式识别(心理学)
人工智能
数据挖掘
图像(数学)
操作系统
作者
Shuying Li,Baidong Peng,Long Fang,Qiang Zhang,Lei Cheng,Qiang Li
出处
期刊:IEEE Transactions on Geoscience and Remote Sensing
[Institute of Electrical and Electronics Engineers]
日期:2023-01-01
卷期号:61: 1-10
标识
DOI:10.1109/tgrs.2023.3242239
摘要
Various methods are proposed to reduce the dimensions of hyperspectral image by band selection in recent years. Most methods select one band from each group to construct a band subset. However, the redundancy in the selected bands from different groups is neglected. Furthermore, the researchers do not pay enough attention to how many bands are appropriated for selection. To solve these issues, we propose a hyperspectral band selection method via difference between inter-groups (DIG), which includes grouping strategy and ranking strategy. Specifically, the grouping strategy adopts intra-group similarity to reasonably distribute all partitioning point positions. The similarity of bands within the same group is significantly improved. For the ranking strategy, it not only takes into account the knowledge and intra-group similarity of bands, but also evaluates the differences between each band and other inter-group bands. The redundancy in band subset is reduced sufficiently. In order to accurately obtain the optimal number of bands, an evaluation function is designed to measure the information content and redundancy in various band subsets. Experimental results from different aspects show that the proposed model has a large performance advantage on three public datasets.
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