系统仿真学报 ›› 2020, Vol. 32 ›› Issue (7): 1287-1293.doi: 10.16182/j.issn1004731x.joss.19-VR0504

• 仿真建模理论与方法 • 上一篇    下一篇

基于背景重建的高光谱图像异常检测

宋晓瑞1, 邹玲2, 3, 吴玲达1, 徐万朋1, 3   

  1. 1. 航天工程大学复杂电子系统仿真实验室,北京 101416;
    2. 北京电影学院数字媒体学院,北京 100088;
    3. 鹏城实验室,广东 深圳 518000
  • 收稿日期:2019-09-06 修回日期:2020-03-16 出版日期:2020-07-25 发布日期:2020-07-15
  • 作者简介:宋晓瑞(1990-),女,山东滨州,博士生,研究方向为高光谱图像处理技术;邹玲(1986-),女,北京,博士,硕导,研究方向为虚拟现实技术。

Hyperspectral Image Anomaly Detection Based on Background Reconstruction

Song Xiaorui1, Zou Ling2, 3, Wu Lingda1, Xu Wanpeng1, 3   

  1. 1. Science and Technology on Complex Electronic System Simulation Laboratory, Space Engineering University, Beijing 101416, China;
    2. Digital Media School, Beijing Film Academy, Beijing 100088, China;
    3. Peng Cheng Laboratory, Shenzhen 518000, China
  • Received:2019-09-06 Revised:2020-03-16 Online:2020-07-25 Published:2020-07-15

摘要: 针对高光谱图像异常检测中背景信息与异常目标信息难以有效区分,背景预测精度不佳的问题,提出一种新的基于背景重建的高光谱图像异常检测算法通过字典学习方法获取高光谱图像背景光谱字典,并利用该字典对待检测图像进行稀疏重建,得到预测背景图像。将预测背景图像与原始图像做差后得到残差图像,进而利用局部RX检测算法对残差图像进行遍历,实现异常目标检测。通过对真实高光谱图像场景进行实验,证明了算法的有效性。

关键词: 异常检测, 高光谱, 字典学习, 稀疏表示, 在线学习

Abstract: In the anomaly detection of hyperspectral images (HSIs), aiming at the difficulty of distinguishing the abnormal target from the background and the low accuracy of background prediction, a new HSI anomaly detection algorithm based on background sparse reconstruction is proposed. An online dictionary learning method is used to estimate the background spectral dictionary. The estimated background image is sparse reconstructed by the learning dictionary. The estimated background image is subtracted from the origin image to get the residual image. The anomaly detection is achieved by using the local RX detector to traverse the residual image. The effectiveness of the proposed HSI anomaly detection algorithm based on the background sparse reconstruction is illustrated in a series of real-world data experiments.

Key words: anomaly detection, hyperspectral image (HSI), dictionary learning, sparse representation, online learning

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