Band Selection for Change Detection from Hyperspectral Images

被引:6
作者
Liu, Sicong [1 ]
Du, Qian [2 ]
Tong, Xiaohua [1 ]
机构
[1] Tongji Univ, Coll Surveying & Geoinformat, Shanghai, Peoples R China
[2] Mississippi State Univ, Dept Elect & Comp Engn, Mississippi State, MS 39762 USA
来源
ALGORITHMS AND TECHNOLOGIES FOR MULTISPECTRAL, HYPERSPECTRAL, AND ULTRASPECTRAL IMAGERY XXIII | 2017年 / 10198卷
关键词
change detection; hyperspectral images; dimensionality reduction; band selection; multitemporal images; remote sensing; DIMENSIONALITY REDUCTION;
D O I
10.1117/12.2263024
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
In this paper, we propose to apply unsupervised band selection to improve the performance of change detection in multitemporal hyperspectral images (HSI-CD). By reducing data dimensionality through finding the most distinctive and informative bands in the difference image, foreground changes may be better detected. Band selection-based dimensionality reduction (BS-DR) technique is considered to investigate in details the following sub-problems in HSI-CD including: 1) the estimated number of multi-class changes; 2) the binary CD; 3) the multiple CD; 4) the change discriminability; 5) the optimal number of selected bands. Thus it contributes at first time a quantitative analysis of the BS-DR approach impacting on the HSI-CD performance. Due to the difficulty of having training samples in an unknown environment, unsupervised band selection and change detection are considered. A pair of real multitemporal hyperspectral Hyperion data set has been used to validate the proposed approach. Experimental results confirmed the effectiveness of selecting a band subset to obtain a satisfactory CD result, comparing with the one using original full bands. In addition, the results also demonstrated that the reduced feature space is capable to maintain sufficient information for detecting the occurred spectrally significant changes. CD performance is enhanced with respect to the increasing of change representative and discriminable capabilities.
引用
收藏
页数:7
相关论文
共 27 条
[1]  
[Anonymous], 12 JPL AIRB EARTH WO
[2]  
[Anonymous], MULTITEMPORAL REMOTE
[3]   A Framework for Automatic and Unsupervised Detection of Multiple Changes in Multitemporal Images [J].
Bovolo, Francesca ;
Marchesi, Silvia ;
Bruzzone, Lorenzo .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2012, 50 (06) :2196-2212
[4]   Automatic analysis of the difference image for unsupervised change detection [J].
Bruzzone, L ;
Prieto, DF .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 2000, 38 (03) :1171-1182
[5]   A Novel Framework for the Design of Change-Detection Systems for Very-High-Resolution Remote Sensing Images [J].
Bruzzone, Lorenzo ;
Bovolo, Francesca .
PROCEEDINGS OF THE IEEE, 2013, 101 (03) :609-630
[6]  
Chang C.-I, 2013, Hyperspectral Data Processing: Algorithm Design and Analysis
[7]   TARGET-DRIVEN CHANGE DETECTION BASED ON DATA TRANSFORMATION AND SIMILARITY MEASURES [J].
Du, Peijun ;
Liu, Sicong ;
Bruzzone, Lorenzo ;
Bovolo, Francesca .
2012 IEEE INTERNATIONAL GEOSCIENCE AND REMOTE SENSING SYMPOSIUM (IGARSS), 2012, :2016-2019
[8]  
Du Q, 2004, 2003 IEEE WORKSHOP ON ADVANCES IN TECHNIQUES FOR ANALYSIS OF REMOTELY SENSED DATA, P374
[9]   Similarity-Based Unsupervised Band Selection for Hyperspectral Image Analysis [J].
Du, Qian ;
Yang, He .
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS, 2008, 5 (04) :564-568
[10]   HYPERSPECTRAL IMAGE CLASSIFICATION AND DIMENSIONALITY REDUCTION - AN ORTHOGONAL SUBSPACE PROJECTION APPROACH [J].
HARSANYI, JC ;
CHANG, CI .
IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING, 1994, 32 (04) :779-785