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基于线性和非线性混合滤波器的噪声抑制技术
引用本文:张小义,陈东,韩晓广.基于线性和非线性混合滤波器的噪声抑制技术[J].计算机工程与设计,2004,25(9):1460-1462.
作者姓名:张小义  陈东  韩晓广
作者单位:空军图像处理实验室,北京,100085
基金项目:“十五”国防预研基金(41303040204)
摘    要:图像去噪处理的目的是抑制图像中的噪声、锐化边缘信息,为图像的后续处理(边缘检测和特征提取)提供基础,但目前的滤波技术较难达到同时平滑噪声,锐化边缘的要求,只能是在平滑噪声的同时,最大限度地保留边缘信息和细节。针对这一情况,在分析一般滤波器特点的基础上,提出了一种,基于线性和非线性混合滤波器的噪声抑制技术。该滤波器在平滑噪声的同时,能较好地保留边缘信息和细节。

关 键 词:边缘信息  锐化  边缘检测  特征提取  平滑  图像去噪  噪声抑制  滤波器  滤波技术  非线性
文章编号:1000-7024(2004)09-1460-03

Noise restraining technology based on combination of linear and nonlinear filter
ZHANG Xiao-yi,CHEN Dong,HAN Xiao-guang Air Force Image Processing Lab,Beijing ,China.Noise restraining technology based on combination of linear and nonlinear filter[J].Computer Engineering and Design,2004,25(9):1460-1462.
Authors:ZHANG Xiao-yi  CHEN Dong  HAN Xiao-guang Air Force Image Processing Lab  Beijing  China
Affiliation:ZHANG Xiao-yi,CHEN Dong,HAN Xiao-guang Air Force Image Processing Lab,Beijing 100085,China
Abstract:In image processing, noise suppressor can restrain the noise and get the sharp edge information which make the following process more convenience. At the present time, the filtering technology can only smooth down the noise while reserving a maximum of the information and detail on the edge but it can't do together with sharp edge. Aiming at this circumstance, after analyzing some normal filters, a noise suppressor based on combination of linear and nonlinear filter is proposed, which can smooth the noise and reserve more information of the edge simultaneously.
Keywords:smooth noise  sharp edge  filter  noise suppressor
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