Title :
Variational Model on Wavelet Domain for PET/CT Image Fusion
Author :
Tong Lei ; Chen Chao-min ; Ni Qian ; Liu Lin-Xiang
Author_Institution :
Guangdong Vocational Coll. of Mech. & Electr. Technol., Southern Med. Univ., Guangzhou, China
Abstract :
The objective of the study is to find a new algorithm for PET/CT image fusion. A variational model was used based on the wavelet transform. Firstly, PET and CT images were decomposed using wavelet transform. Then, images in approximate channel and detail channel were fused according to the two proposed assumption. Finally, decomposed images were synthesized to form fused image. Compared with the results form MATLAB wavelet fusion toolbox, the experimental results showed that the new variational image fusion model could provide more accurate result for target location in radiotherapy planning. According to experiments, the new algorithm can reach good results and meet requirement of clinical demands.
Keywords :
computerised tomography; diagnostic radiography; image fusion; medical image processing; positron emission tomography; radiation therapy; wavelet transforms; PET-CT image fusion; clinical requirement; radiotherapy planning; variational model; wavelet domain; Biomedical imaging; Chaos; Computed tomography; Image fusion; Lesions; Mathematical model; Positron emission tomography; Wavelet coefficients; Wavelet domain; Wavelet transforms;
Conference_Titel :
Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2901-1
Electronic_ISBN :
978-1-4244-2902-8
DOI :
10.1109/ICBBE.2009.5163745
