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大庆师范学院 机电工程学院, 黑龙江 大庆 163712
[ "成宝芝(1976—), 男, 吉林东丰人, 博士, 副教授, 2012年于哈尔滨工程大学获得博士学位, 2014年进入哈尔滨工程大学计算机科学与技术博士后流动站, 2017年9月出站, 主要从事高光谱图像处理与大数据分析方面的研究。E-mail:chengbaozhigy@163.com" ]
收稿日期:2019-04-10,
录用日期:2019-6-4,
纸质出版日期:2019-09-05
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成宝芝, 张丽丽. 基于双边滤波的最优波段子空间高光谱异常目标检测[J]. 液晶与显示, 2019,34(9):897-904.
Bao-zhi CHENG, Li-li ZHANG. Optimal bands subspace anomaly detection for hyperspectral imagery based on bilateral filtering[J]. Chinese journal of liquid crystals and displays, 2019, 34(9): 897-904.
成宝芝, 张丽丽. 基于双边滤波的最优波段子空间高光谱异常目标检测[J]. 液晶与显示, 2019,34(9):897-904. DOI: 10.3788/YJYXS20193409.0897.
Bao-zhi CHENG, Li-li ZHANG. Optimal bands subspace anomaly detection for hyperspectral imagery based on bilateral filtering[J]. Chinese journal of liquid crystals and displays, 2019, 34(9): 897-904. DOI: 10.3788/YJYXS20193409.0897.
针对KRX方法对高光谱图像进行异常目标检测时存在检测效率低和虚警率高的问题,在充分分析高光谱图像数据特征基础上,本文提出一种最优波段子空间方法的高光谱图像异常目标检测算法。该算法首先利用双边滤波方法对高光谱图像进行全局滤波,充分利用双边滤波的优点,使得高光谱图像背景信息得到抑制;然后采用经典的自动子空间方法对高光谱图像进行波段子集划分;再利用联合偏度-峰度指标,在每个波段子集内选出最优波段;最后利用这些最优波段构成新的波段最优子空间,在此基础上,在最优波段子空间中利用Kernel RX算法进行异常目标检测,从而得到异常检测结果。本文利用真实的高光谱图像进行仿真验证,获得异常目标、检测的虚警数和ROC等检测结果。结果表明,该算法具有鲁棒性强、虚警率低和检测精度高等优点。
In order to overcome the low detection accuracy and high false alarm rate of anomaly target detection in hyperspectral image based on Kernel RX anomaly detector
the new hyperspectral image anomaly target detection algorithm for optimal bands subspace is proposed on the basis of fully analyzing the characteristics of hyperspectral image data. First
the bilateral filtering method is used to filter the hyperspectral image
which makes the background information of hyperspectral images be suppressed by full using of the advantages of bilateral filtering. Then
the band subset of hyperspectral image is divided by adopting the classical ASD method
and then the optimal bands are selected by using the combined skewness-kurtosis index in each band subset. Finally
the Kernel RX algorithm is used to detect anomaly targets by using these optimal bands. The real AVIRIS hyperspectral imagery data sets are used in the experiments
and the detection results are obtained by anomaly targets
false alarm number and ROC curve. The results show that the proposed algorithm has strong robustness and lower false alarm probability.
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