[1]郑儒楠,刘文波.应用虚拟样本对SAR图像目标识别的研究[J].机械与电子,2017,(06):12-17.
　ZHENG Runan,LIU Wenbo.Research on SAR Image Target Recognition based on Virtual Sample[J].Machinery & Electronics,2017,(06):12-17.
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应用虚拟样本对SAR图像目标识别的研究
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《机械与电子》[ISSN:1001-2257/CN:52-1052/TH]

卷:
期数:
2017年06期
页码:
12-17
栏目:
设计与研究
出版日期:
2017-06-24

文章信息/Info

Title:
Research on SAR Image Target Recognition based on Virtual Sample
文章编号:
1001-2257(2017)06-0012-06
作者:
郑儒楠; 刘文波
(南京航空航天大学自动化学院,江苏 南京 211106)
Author(s):
ZHENG Runan; LIU Wenbo
(College of Automation Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China)
关键词:
SAR图像;  机器学习;  目标识别;  虚拟样本
Keywords:
SAR image;  machine learning;  object recognition;  virtual sample
分类号:
TP751.1
文献标志码:
A
摘要:
鉴于SAR图像获取的困难,无法保证机器学习算法时需要的大数据量训练样本,因此影响了识别结果。首次提出了应用虚拟样本来扩大SAR图像目标识别训练集,提高SAR 图像目标识别率的方法。通过使用重采样算法,奇异值重构与轮廓波重构等方法构建虚拟样本,与原有样本组成训练集,并通过SVM支持向量机进行训练识别在MSTAR公共数据集上的识别实验结果表明,对于不同数量的实际训练样本,通过添加本文方法构建的虚拟样本扩大训练集后,SAR 图像目标识别率均会得到提高,尤其在小样本的情况下,识别率提高非常显著。该文证实了虚拟样本应用于SAR图像目标识别的有效性。在样本数目有限时,添加虚拟样本对SAR图像目标识别性能具有明显的改善作用。
Abstract:
Machine learning algorithm is one of the main methods of recognizing ground target SAR image; however, because of the difficulties of SAR image acquisition, it is impossible to guarantee a sufficient number of training samples during the machine learning algorithm. Thus, the recognition results will be affected. For the first time, this paper proposed the way to improve the recognition rate of SAR images by using virtual samples to expand the training set of SAR image target recognition. Through such methods as re-sampling algorithm, singular value reconstruction and contourlet reconstruction to generate virtual samples, this paper combined the training set with the original samples. An experiment was conducted on recognizing MSTAR data sets by means of training vector machine with SVM support. The results show that for different numbers of training samples, the recognition rate of SAR images can be improved by adding the virtual samples, especially in the case of small samples. This paper proves the effectiveness of using virtual sample in SAR image target recognition. When the number of samples is limited, adding virtual samples can significantly improve the performance of SAR image target recognition.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-02-08
基金项目:航空基金(20152052026); 国家自然科学基金(61471191)
作者简介:郑儒楠( 1992- ),男,江苏镇江人,硕士研究生,研究方向为计算机图形学、信号处理等; 刘文波( 1968- ),女,辽宁大连人,博士,教授,博士研究生导师,研究方向为信号处理及应用,计算机测试与控制技术。
更新日期/Last Update: 2017-06-25