Application of Anisotropic Diffusion Equation in Digital Image Noise Reduction

张旭; 陈树越

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Application of Anisotropic Diffusion Equation in Digital Image Noise Reduction

更新时间：2026-09-14

- Application of Anisotropic Diffusion Equation in Digital Image Noise Reduction
- 各向异性扩散方程在数字图像去噪中的应用
- Issue 1, Pages: 45-48(2006)
- 作者机构：
  
  中北大学教育部仪器科学与动态测试重点实验室
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2006
- 稿件说明：
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张旭, 陈树越. Application of Anisotropic Diffusion Equation in Digital Image Noise Reduction[J]. 2006, (1): 45-48.
DOI：

张旭, 陈树越. Application of Anisotropic Diffusion Equation in Digital Image Noise Reduction[J]. 2006, (1): 45-48. DOI：

摘要

研究了各向异性扩散方程在去除数字图像瑞利噪声中的应用.在理论上对其去噪原理进行了分析

并在此基础上提出了改进算法.在实践中

通过实验给出了改进算法更好的去噪效果

并说明了这种方法的特点和适用情形.将这种方法与中值滤波结合提出了混合法同时改善被瑞利噪声和随机散粒噪声污染的图像.

Abstract

Anisotropic diffusion equation is used to reduce digital image noise.This paper has made a theoretical analysis on the mechanism of noise reduction

presented an improve algorithm accordingly

and explained the characteristics and applicability of the algorithm.Practical experiments prove that the improved algorithm can achieve a better noise reduction.Based on the combination of the improved algorithm with median filtration

the paper claims that the blending approach can also improve the image polluted by Rayleigh noise and random dot-noise.

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references

勒中鑫.数字图像信息处理[M].北京:国防工业出版社,2003:71-76.

Y U Y ONG JIAN,A CTON SCOTT T.SPECK LE REDUC ING AN ISOTROP IC D IFFUS ION[J].IEEE T RANSACTION ON IM AGE P ROCESS ING,2002,11(11):1260-1269.

A BD-E LM ON IEM K Z,K ADAH Y M,Y OUSSEF A B M.R EA L TIM E ADAPTIVE U LTRASOUND SPECK LE REDUCTION AND COHERENCEENHANCEM EN T[J].IEEE T RANSACTION ON B IOM ED ICA L,2002,9(49):99-1005.

LOUPAS T.A N ADAPTIVE W E IGH TED M ED IAN FILTER FOR SPECK LE SUPPRESS ION IN M ED ICA L U LTRASON IC IM AGE[J].IEEE T RANSON C IRCU ITS SYSTEM,1989,CA S-36(1):129-135.

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