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基于曲波变换和独立分量分析的有噪图像盲分离 被引量:4

Blind separation of noisy image based on the curvelet transform and independent component analysis
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摘要 曲波变换是在小波变换的基础上发展起来的一种新方法,能够有效地对具有复杂纹理的图像进行去噪。在分析独立分量分析(ICA)的基本模型和方法的基础上,提出利用快速离散曲波变换和FastICA算法进行有噪图像盲分离。仿真结果表明,对于含有加性观测噪声的混合图像,该方法能够有效地进行去噪分离。 The eurvelet transform is a new method developed from the wavelet transform, and it has good performance in denoising sophisticated image. This paper, based on the basic model and methods of Independent Component Analysis (ICA), proposed a new blind separation method of noisy image using Fast Discrete Curvelet Transforms (FDCT) via Unequally-Spaced Fast Fourier Transforms (USFFT) and the algorithm of Fast ICA. The simulation results show that for the mixed images with additive white Gaussian noise this method has effective performance in mixed image de - noising and separation.
作者 张志禹 毕杨
出处 《计算机应用》 CSCD 北大核心 2007年第2期438-441,共4页 journal of Computer Applications
关键词 独立分量分析 FASTICA算法 快速离散曲波变换 图像盲分离 Independent Component Analysis (ICA) algorithm of Fast ICA Fast Discrete Curvelet Transforms (FDCT) imageblind separation
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