NDLI: CT and MRI image fusion based on multiscale decomposition method and hybrid approach

Content Provider	IET Digital Library
Author	Chang, Lihong Feng, Xiangchu Zhu, Xiaolong Zhang, Rui He, Ruiqiang Xu, Chen
Abstract	In the fusion process of medical computed tomography (CT) and magnetic resonance image (MRI), traditional multiscale methods often reduce the contrast of fused images. Although sparse representation (SR) methods overcome this shortcoming, they are often too smooth along the strong edges of the fusion image. To overcome these shortcomings, CT and MRI image fusion based on multiscale decomposition method and hybrid approach is proposed. There are three main steps. First, the cartoon parts and texture parts of CT and MRI are obtained by the improved image decomposition method using global sparse gradients. Second, the large structure cartoon parts are fused using the specific cartoon dictionary and the ‘L1-max norm’ principle. The textured parts are fused using non-subsampled contourlet transformation (NSCT) and the maximum energy rule. Finally, the final result is obtained by superimposing the fused cartoon part and the fused texture part. The experimental results demonstrate that the proposed method outperforms the state-of-the-art method SR and NSCT in terms of visual effect and objective quality.
Starting Page	83
Ending Page	88
Page Count	6
ISSN	17519659
Volume Number	13
e-ISSN	17519667
Issue Number	Issue 1, Jan (2019)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-ipr/13/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-ipr.2018.5720
Journal	IET Image Processing
Publisher Date	2018-10-11
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	Biology And Medical Computing Biomedical Imaging/measurement Biomedical Magnetic Resonance Imaging Biomedical MRI Computed Tomography Computer Vision And Image Processing Technique Computerised Tomography Function Theory And Analysis Fused Cartoon Part Fused Texture Part Fusion Process Hybrid Approach Image Decomposition Method Image Fusion Image Representation Image Texture Integral Transforms Large Structure Cartoon Parts Magnetic Resonance Image Maximum Energy Rule Medical Image Processing Medical Magnetic Resonance Imaging And Spectroscopy MRI Multiscale Decomposition Method Nonsubsampled Contourlet Transformation Optical, Image And Video Signal Processing Patient Diagnostic Method And Instrumentation Radiography And Computed Tomography Sensor Fusion Sparse Representation Method Spectroscopy Textured Parts Transform X-Ray Technique X-Rays And Particle Beam
Content Type	Text
Resource Type	Article
Subject	Signal Processing Electrical and Electronic Engineering Computer Vision and Pattern Recognition Software

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