Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study

Synthetic aperture radar (SAR) has all-day and all-weather characteristics and plays an extremely important role in the military field. The breakthroughs in deep learning methods represented by convolutional neural network (CNN) models have greatly improved the SAR image recognition accuracy. Classi...

Full description

Bibliographic Details
Main Authors: Haifeng Li, Haikuo Huang, Li Chen, Jian Peng, Haozhe Huang, Zhenqi Cui, Xiaoming Mei, Guohua Wu
Format: Article
Language:English
Published: IEEE 2021-01-01
Series:IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9261933/
_version_ 1818821073903288320
author Haifeng Li
Haikuo Huang
Li Chen
Jian Peng
Haozhe Huang
Zhenqi Cui
Xiaoming Mei
Guohua Wu
author_facet Haifeng Li
Haikuo Huang
Li Chen
Jian Peng
Haozhe Huang
Zhenqi Cui
Xiaoming Mei
Guohua Wu
author_sort Haifeng Li
collection DOAJ
description Synthetic aperture radar (SAR) has all-day and all-weather characteristics and plays an extremely important role in the military field. The breakthroughs in deep learning methods represented by convolutional neural network (CNN) models have greatly improved the SAR image recognition accuracy. Classification models based on CNNs can perform high-precision classification, but there are security problems against adversarial examples (AEs). However, the research on AEs is mostly limited to natural images, and remote sensing images (SAR, multispectral, etc.) have not been extensively studied. To explore the basic characteristics of AEs of SAR images (ASIs), we use two classic white-box attack methods to generate ASIs from two SAR image classification datasets and then evaluate the vulnerability of six commonly used CNNs. The results show that ASIs are quite effective in fooling CNNs trained on SAR images, as indicated by the obtained high attack success rate. Due to the structural differences among CNNs, different CNNs present different vulnerabilities in the face of ASIs. We found that ASIs generated by nontarget attack algorithms feature attack selectivity, which is related to the feature space distribution of the original SAR images and the decision boundary of the classification model. We propose the sample-boundary-based AE selectivity distance to successfully explain the attack selectivity of ASIs. We also analyze the effects of image parameters, such as image size and number of channels, on the attack success rate of ASIs through parameter sensitivity. The experimental results of this study provide data support and an effective reference for attacks on and the defense capabilities of various CNNs with regard to AEs in SAR image classification models.
first_indexed 2024-12-18T23:02:24Z
format Article
id doaj.art-ebc82d05b5df4fe782f32cefed503373
institution Directory Open Access Journal
issn 2151-1535
language English
last_indexed 2024-12-18T23:02:24Z
publishDate 2021-01-01
publisher IEEE
record_format Article
series IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
spelling doaj.art-ebc82d05b5df4fe782f32cefed5033732022-12-21T20:48:33ZengIEEEIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing2151-15352021-01-01141333134710.1109/JSTARS.2020.30386839261933Adversarial Examples for CNN-Based SAR Image Classification: An Experience StudyHaifeng Li0https://orcid.org/0000-0003-1173-6593Haikuo Huang1Li Chen2Jian Peng3https://orcid.org/0000-0002-1820-4015Haozhe Huang4Zhenqi Cui5Xiaoming Mei6Guohua Wu7https://orcid.org/0000-0003-1552-9620School of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Geosciences and Info-Physics, Central South University, Changsha, ChinaSchool of Traffic and Transportation Engineering, Central South University, Changsha, ChinaSynthetic aperture radar (SAR) has all-day and all-weather characteristics and plays an extremely important role in the military field. The breakthroughs in deep learning methods represented by convolutional neural network (CNN) models have greatly improved the SAR image recognition accuracy. Classification models based on CNNs can perform high-precision classification, but there are security problems against adversarial examples (AEs). However, the research on AEs is mostly limited to natural images, and remote sensing images (SAR, multispectral, etc.) have not been extensively studied. To explore the basic characteristics of AEs of SAR images (ASIs), we use two classic white-box attack methods to generate ASIs from two SAR image classification datasets and then evaluate the vulnerability of six commonly used CNNs. The results show that ASIs are quite effective in fooling CNNs trained on SAR images, as indicated by the obtained high attack success rate. Due to the structural differences among CNNs, different CNNs present different vulnerabilities in the face of ASIs. We found that ASIs generated by nontarget attack algorithms feature attack selectivity, which is related to the feature space distribution of the original SAR images and the decision boundary of the classification model. We propose the sample-boundary-based AE selectivity distance to successfully explain the attack selectivity of ASIs. We also analyze the effects of image parameters, such as image size and number of channels, on the attack success rate of ASIs through parameter sensitivity. The experimental results of this study provide data support and an effective reference for attacks on and the defense capabilities of various CNNs with regard to AEs in SAR image classification models.https://ieeexplore.ieee.org/document/9261933/Adversarial example (AE)convolutional neural network (CNN)synthetic aperture radar (SAR)
spellingShingle Haifeng Li
Haikuo Huang
Li Chen
Jian Peng
Haozhe Huang
Zhenqi Cui
Xiaoming Mei
Guohua Wu
Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Adversarial example (AE)
convolutional neural network (CNN)
synthetic aperture radar (SAR)
title Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study
title_full Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study
title_fullStr Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study
title_full_unstemmed Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study
title_short Adversarial Examples for CNN-Based SAR Image Classification: An Experience Study
title_sort adversarial examples for cnn based sar image classification an experience study
topic Adversarial example (AE)
convolutional neural network (CNN)
synthetic aperture radar (SAR)
url https://ieeexplore.ieee.org/document/9261933/
work_keys_str_mv AT haifengli adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT haikuohuang adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT lichen adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT jianpeng adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT haozhehuang adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT zhenqicui adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT xiaomingmei adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy
AT guohuawu adversarialexamplesforcnnbasedsarimageclassificationanexperiencestudy