Noise-resistant change detection for remote sensing images based on spatial fuzzy C-means clustering and a Bayesian network
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摘要: 目前,大部分遥感变化检测算法无法有效处理受高斯、椒盐和混合噪声污染的图像。为了解决这一问题,文章将能够在噪声污染条件下有效分解混合像元的5种基于邻域空间信息的模糊C均值聚类(FCM_S1,FCM_S2,KFCM_S1,KFCM_S2和FLICM)算法分别与简单贝叶斯网络(simple Bayesian network,SBN)相结合,在后验概率空间变化向量分析(change vector analysis in posterior probability space,CVAPS) 框架下,实现了5种能够较好地抗高斯、椒盐和混合噪声的遥感变化检测方法。对比实验证明,该文所提出的变化检测算法对高斯、椒盐和混合噪声具有较好的鲁棒性。
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关键词:
- 变化检测 /
- 模糊C均值聚类 /
- 简单贝叶斯网络 /
- 后验概率空间变化向量分析
Abstract: Currently, most change detection algorithms for remote sensing images fail to effectively process images polluted by Gaussian, impulse, or mixed noise. To address this problem, this study presented five fuzzy C-means (FCM) clustering algorithms (FCM_S1, FCM_S2, KFCM_S1, KFCM_S2, and FLICM) based on neighborhood space information. These algorithms, which can efficiently decompose mixed pixels in the presence of noise pollution, were combined with a simple Bayesian network (SBN). Under the framework of change vector analysis in posterior probability space (CVAPS), this study developed five change detection methods for remote sensing images, exhibiting high resistance to Gaussian, impulse, and mixed noise. Comparative experiments demonstrate that the change detection algorithms proposed in this study manifest high robustness against the above-mentioned noise. -
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