计算机工程2011，Vol.37Issue(13)：213-215,218,4.DOI:10.3969/j.issn.1000-3428.2011.13.069
基于直方图统计信息的斑点噪声参数盲估计
Parameter Blind Estimation of Speckle Noise Based on Statistic Information of Histogram
摘要
Abstract
Focusing on a kind of familiar noise, i.e.speckle noise, this paper presents a simple and efficient method on blind parameter estimation of speckle noise in an image.In the method, after various intensity speckle noise are added into a simulation image respectively, the regularities of histogram distribution in unitary grey area are analyzed.On the basis of the regularities of distribution, noise characteristic value standing for noise intensity is constructed.A function map between noise parameters and noise characteristic values are deduced out.Experimental results indicate that the function map can estimate the noise intensity in noise-polluted images rapidly and efficiently without any prior knowledge.Potential applications includes noise circumstance assessment in cases of image acquisition or transmission, analysis on relationship between noise intensity and image quality, assistance on the improvement of current noise suppression algorithms, etc.关键词
直方图/斑点噪声/参数估计/盲估计/函数映射Key words
histogram/ speckle noise/ parameter estimation/ blind estimation/ function mapping分类
信息技术与安全科学引用本文复制引用
丁生荣,马苗..基于直方图统计信息的斑点噪声参数盲估计[J].计算机工程,2011,37(13):213-215,218,4.基金项目
国家自然科学基金资助项目(60803088,10974130) （60803088,10974130）
陕西省自然科学基金资助项目(2007D07,2009JM8018) （2007D07,2009JM8018）
中央高校基本科研业务费专项基金资助重点项目(GK200901006) （GK200901006）
陕西省青年科技新星基金资助项目(2011kjxx17) （2011kjxx17）
