Title :
Normalized I-Alpha-Information for Medical Image Registration
Author :
Liu, Changchun ; Yang, Jinbao ; Hu, Shunbo ; Gu, Jason J. ; Yu, Mengsun
Author_Institution :
Shandong Univ., Jinan
Abstract :
As a similarity measure of medical image registration, f-information is studied. Mutual information is considered a special type of f-information. In order to reduce sensitivity to changes in overlap, two novel normalized I-alpha-information measures are proposed. The function curves, computational time and convergence are studied by applying these measures to rigid registration of computed tomography (CT)/magnetic resonance (MR) and MR/positron emission tomography (PET) images. The results of tests show the effectiveness of normalized I-alpha-information.
Keywords :
image registration; medical image processing; CT; MR images; PET images; computed tomography; magnetic resonance images; medical image registration; normalized i-alpha-information; positron emission tomography images; Biomedical engineering; Biomedical imaging; Computed tomography; Convergence; Electric variables measurement; Entropy; Image registration; Information theory; Mutual information; Positron emission tomography;
Conference_Titel :
Electrical and Computer Engineering, 2007. CCECE 2007. Canadian Conference on
Conference_Location :
Vancouver, BC
Print_ISBN :
1-4244-1020-7
Electronic_ISBN :
0840-7789
DOI :
10.1109/CCECE.2007.296
