一种基于小波变换的数字图像非线性滤波器快速算法  

Nonlinear Filter Fast Algorithm of Digital Image Based Wavelet

作　　者：牛江龙[1] 毕笃彦[1] 

机构地区：[1]空军工程大学工程学院,西安710038

出　　处：《弹箭与制导学报》2006年第S4期795-797,共3页Journal of Projectiles,Rockets,Missiles and Guidance

摘　　要：文中针对传统数字图像离散序列非线性滤波器算法中运算量大的缺陷,提出了一种新的基于小波变换的数字图像离散序列非线性滤波器计算方法。基本思路是将双边小波变换简化为单边小波变换,降低了计算模型的复杂度,利用向量奇偶分量同时代入模型计算,简化了数据恢复的步骤,从而大大提高了离散型非线性滤波器运算速度。实验结果证明,文中所提出的方法能够很好地兼顾算法的效率和概率分布图的准确性。In order to overcome the drawbacks of traditional Discrete Nonlinear filter fast Algorithm of Digital Image: heavy computation,this paper raises a new wavelet fast algorithm,which can be used to design a nonlinear filter.This algorithm changes bilateral wavelet transformation into a unilateral wavelet transformation,and raises the calculating speed and simplifies the algorithm model's complexity.To reduce the burden of computer,the odd and even vector of the original vector can be put into the model at the same time,so we can cross the output and simplifies the complexity of the data restoration.Experiments show that the proposed method can be balanced the computing time and the accuracy of Probability Distributing Figure.

关 键 词：非线性滤波器 双边小波变换 单边小波变换 向量奇偶分量 

分 类 号：TN713[电子电信—电路与系统]