Multilevel thresholding for mutual information based registration and image registration using a GPU

An exemplary embodiment of the present invention includes a method of registering images. The method includes: for each image, determining an optimum intensity threshold set from a plurality of intensity threshold sets that maximizes a variance between classes of each set, segmenting each image usin...

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Bibliographic Details
Main Authors CHEFD'HOTEL CHRISTOPHE, BOUSQUET GUILLAUME, YOUSFI RAZIK, LEFEBVRE ALBAN
Format Patent
LanguageEnglish
Published 20.05.2014
Subjects
CALCULATING
COMPUTING
COUNTING
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
PHYSICS
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Summary:An exemplary embodiment of the present invention includes a method of registering images. The method includes: for each image, determining an optimum intensity threshold set from a plurality of intensity threshold sets that maximizes a variance between classes of each set, segmenting each image using the corresponding determined optimum intensity threshold set, generating mutual information from a joint histogram of at least two of the segmented images, and registering the at least two images using the mutual information. The joint histogram may be generated using a geometry shader of a graphical processing unit.
Bibliography:Application Number: US20090509740