期刊论文

Multi-focus image fusion method based on guided filtering and difference image

中文

计算机应用

1001-9081

2021

41

01

220-224

10.11772/j.issn.1001-9081.2020081456

湖南省教育厅科学研究基金资助项目（17B079）~~；

本校为其他机构

针对传统的多聚焦图像的空间域融合容易出现边缘模糊的问题,提出了一种基于引导滤波(GF)和差分图像的多聚焦图像融合方法。首先,将源图像进行不同水平的GF,并对滤波后图像进行差分,从而获得聚焦特征图像;随后,利用聚焦特征图像的梯度能量(EOG)信息获得初始决策图,对初始决策图进行空间一致性检查以及形态学操作以消除因EOG相近而造成的噪点;然后,对初始决策图进行GF以得到优化后决策图,从而避免融合后的图像存在边缘骤变的问题;最后,基于优化后决策图对源图像进行加权融合,以得到融合图像。选取3组经典的多聚焦图像作为实验图像,将所提方法与其他9种多聚焦图像融合方法得到的结果进行比较。主观...

To address the problem of edge blurring in traditional space domain fusion of multi-focus images,a multifocus image fusion method based on Guided Filtering(GF)and difference image was proposed.Firstly,the source images were filtered by GF in different levels,and the difference was performed to the filtered images,so as to obtain the focused feature map.Secondly,the Energy of Gradient(EOG)of the focused feature map was used to obtain initial decision map.And to remove the noisy pixels caused by similar HOG,the spatial consistency verification and morphological operation were performed to initia...