Multimodal matching by maximisation of mutual information and optical flow technique

Author

Palos, Georges ; Betrouni, Nacim ; Coulanges, Matthieu ; Vermandel, Maximilien ; Devlaminck, Vincent ; Rousseau, Jean

Author_Institution

Laboratoire d´´Automatique, Gonie Informatique et Signal, Univ. des Sci. et Technol. de Lille, Villeneuve d´´Ascq, France

Volume

1

fYear

2004

fDate

1-5 Sept. 2004

Firstpage

1679

Lastpage

1682

Abstract

Conformal radiotherapy is a therapeutic method requiring medical imaging, generally CT images to obtain Hounsfield number and electronic density data indications. The use of MRI simultaneously with CT imposes to deform CT images and superimpose them on MR images. The aim of this paper is to propose a nonrigid matching method between the two modalities (CT and MRI). The transformation model is defined by an optical flow registration algorithm, using mutual information as a similarity criterion.

Keywords

biomedical MRI; computerised tomography; image matching; image registration; image sequences; medical image processing; optimisation; radiation therapy; CT images; Hounsfield number; MRI; conformal radiotherapy; electronic density; maximisation; medical imaging; multimodal nonrigid image matching; mutual information; optical flow registration algorithm; Biomedical imaging; Biomedical optical imaging; Computed tomography; Entropy; Geometrical optics; Image motion analysis; Magnetic resonance imaging; Mutual information; Random variables; X-ray imaging; CT/MRI Multimodality; Matching; Multiresolution; Mutual Information; Nonrigid Registration; Optical Flow;

fLanguage

English

Publisher

ieee

Conference_Titel

Engineering in Medicine and Biology Society, 2004. IEMBS '04. 26th Annual International Conference of the IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-8439-3

Type

conf

DOI

10.1109/IEMBS.2004.1403506

Filename

1403506