重庆医学2016，Vol.45Issue(21)：2885-2889,5.DOI:10.3969/j.issn.1671-8348.2016.21.002
基于离散小波变换的多模态医学图像融合改进算法的研究
Study on improved algorithm for multimodal medical image fusion based on discrete wavelet transform
摘要
Abstract
Objective To propose an improved discrete wavelet transform (DWT ) and to apply it in multimodal medical im‐age fusion .Methods Firstly ,the source medical images were initially transformed into the high frequency and low frequency images by DWT ;then the high frequency part adopted the big direction absolute values ,which effectively preserved the detailed informa‐tion of image ,while the low frequency part used the fusion rule of local energy ratio for preserving the most of image information ;finally ,the discrete wavelet reverse transform was used for reconstructing the fusion sub‐images into fusion image .Results By comparing the fusion images by 3 groups of medical images ,this proposed algorithm was superior to other existing algorithms in the aspects of subjective visual effect and objective evaluation indicators .Conclusion The proposed algorithm of medical image fusion is rapid and accurate ,has excellent performance in the noise environment and clinical examples ,can obtain the high quality fusion im‐age and has higher clinical application value .关键词
离散小波变换/多模态/图像融合/融合规则Key words
discrete wavelet transform/multimodal/image fusion/fusion rule分类
信息技术与安全科学引用本文复制引用
徐磊,崔璨,张华伟,孟庆乐,杨瑞,田书畅,蒋红兵..基于离散小波变换的多模态医学图像融合改进算法的研究[J].重庆医学,2016,45(21):2885-2889,5.基金项目
南京市医学科技发展资金“青年工程”人才培养专项经费资助项目（QRX11033）。 （）
