Title :
A new Pansharp based method for PET/CT image fusion
Author :
Wei Mu ; Zhe Chen ; Jie Tian ; Zhaohui Zhu ; Di Dong
Author_Institution :
Key Lab. of Mol. Imaging, Inst. of Autom., Beijing, China
fDate :
April 29 2014-May 2 2014
Abstract :
PET/CT image fusion has emerged as a new and promising research area in recent years, whereas the current standard method for PET/CT fusion, Alpha-blending, often blurs fine anatomical structure. In this paper, a new fusion method based on the Pansharp model is presented. Our proposed method consists of first up-scaling the PET image to the resolution of the CT data by bilinear interpolation and registering them with mutual information, then integrating the anatomical information into the original PET image and transforming it to a multi-channel RGB image using a color table, and then simulating the panchromatic image with multiple regression analysis, and finally obtaining the fused image according to the Pansharp model. Our method is verified based on 45 real data sets and both qualitative and quantitative analyses of the fusion results demonstrate the effectiveness and robustness of the proposed method.
Keywords :
image fusion; image registration; image resolution; interpolation; medical image processing; positron emission tomography; regression analysis; PET-CT image fusion; Pansharp model; alpha-blending; bilinear interpolation; image registration; image resolution; multichannel RGB image; multiple regression analysis; panchromatic image; Biomedical imaging; Computed tomography; Image color analysis; Image fusion; Image resolution; Positron emission tomography; Principal component analysis; PET/CT; Parsharp model; image fusion;
Conference_Titel :
Biomedical Imaging (ISBI), 2014 IEEE 11th International Symposium on
Conference_Location :
Beijing
DOI :
10.1109/ISBI.2014.6868076