New optimal diffusion parameter estimate method based on PM model

Computer Engineering and Applications ›› 2011, Vol. 47 ›› Issue (6): 20-22.

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New optimal diffusion parameter estimate method based on PM model

LIU Chanjuan^1，2，QIAN Xu¹，ZOU Hailin²

1.School of Mechanical Electronic & Information Engineering，China University of Mining & Technology，Beijing 100083，China
2.School of Information Science & Engineering，Ludong University，Yantai，Shandong 264025，China

Received:1900-01-01 Revised:1900-01-01 Online:2011-02-21 Published:2011-02-21

一种新的PM模型最优扩散参数估计方法

柳婵娟^1，2，钱旭¹，邹海林²

1.中国矿业大学（北京）机电与信息工程学院，北京 100083
2.鲁东大学信息科学与工程学院，烟台 264025

Abstract

Abstract: The key of image nonlinear diffusion filtering based on PDE（Partial Differential Equations） is to determine the appropriate diffusion mechanism and parameters.Combined with the images’structures and visual features，this paper proposes an optimal gradient threshold and optimal diffusion time scale estimate method on a basis of analyzing the characteristics of nonlinear diffusion.The experimental result shows that the new method has better stability and visual features compared with MSE，SNR and minimum correlation coefficient.

Key words: nonlinear diffusion, gradient threshold, optimal diffusion time scale

摘要： 基于偏微分方程的图像非线性扩散滤波，关键是确定合适的扩散机制与参量。在分析非线性扩散性质的基础上，结合图像的结构特征和视觉特性，提出了一种最优梯度阈值和最佳扩散时间尺度的估计方法。实验结果表明该方法与最小均方误差准则、信噪比准则和相关系数最小准则相比，具有更好的稳定性和视觉特性。

关键词: 非线性扩散, 梯度阈值, 最优扩散时间尺度

LIU Chanjuan^1，2，QIAN Xu¹，ZOU Hailin². New optimal diffusion parameter estimate method based on PM model[J]. Computer Engineering and Applications, 2011, 47(6): 20-22.

柳婵娟^1，2，钱旭¹，邹海林². 一种新的PM模型最优扩散参数估计方法[J]. 计算机工程与应用, 2011, 47(6): 20-22.

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New optimal diffusion parameter estimate method based on PM model

一种新的PM模型最优扩散参数估计方法

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