量子电子学报2017，Vol.34Issue(4)：405-413,9.DOI:10.3969/j.issn.1007-5461.2017.04.005
基于方向性对比度金字塔的图像融合方法
Image fusion method based on directional contrast pyramid
摘要
Abstract
The image fusion method based on contrast pyramid decomposition has good physical meaning,but there is no emphasis on direction.An image fusion method based on directional contrast pyramid decomposition is proposed.The contrast pyramid decomposition of multi-focus images is performed.Multiple directional sub-images are obtained for each high frequency image by using directional filter banks.According to the characteristics of different frequency domain,the decomposed sub-images are fused,and the fusion rule is that the weighted average value is selected for low frequency sub-band coefficients,while for high frequency sub-band coefficients,the coefficients with larger absolute value are employed.Results show that the fused images obtained by the proposed method have high definition and spatial resolution.Compared to the fusion methods based on the contrast pyramid (CP) decomposition and discrete wavelet transform (DWT),the proposed method can not only keep the meaning of contrast,but also provide 2n direction information.关键词
图像处理/图像融合/对比度塔形分解/方向滤波器组Key words
image processing/image fusion/contrast pyramid decomposition/directional filter banks分类
信息技术与安全科学引用本文复制引用
刘斌,董迪,陈俊霖..基于方向性对比度金字塔的图像融合方法[J].量子电子学报,2017,34(4):405-413,9.基金项目
Supported by National Natural Science Foundation of China(国家自然科学基金,61471160),Key Project of Natural Science Foundation of Hubei Province(湖北省自然科学基金重点项目,2012FFA053) （国家自然科学基金,61471160）
