Computing an average anatomical atlas using LDDMM and geodesic shooting

Author

Beg, M. Faisal ; Khan, Ali

Author_Institution

Sch. of Eng. Sci., Simon Fraser Univ., Burnaby, BC

fYear

2006

fDate

6-9 April 2006

Firstpage

1116

Lastpage

1119

Abstract

Average 3D digital atlas construction from a set of images is an important task for registration and assessment of intra- and inter-population differences in structural and functional imagery. In this paper, we describe the computation of an average atlas using LDDMM and geodesic shooting where the velocity vector fields transforming a provisional template to the ensemble are averaged and evolved via shooting using the equation for the geodesic conservation of momentum to give the average atlas. This guarantees that the averaged atlas so computed remains within the permissible shape space of the anatomical ensemble being averaged

Keywords

biomedical MRI; differential geometry; image registration; medical image processing; 3D digital atlas construction; LDDMM; MR images; average anatomical atlas; functional imagery; geodesic shooting; image registration; interpopulation differences; intrapopulation differences; large deformations diffeomorphics metric mapping; structural imagery; velocity vector fields; Anatomy; Biomedical engineering; Biomedical imaging; Equations; Geophysics computing; Image analysis; Laboratories; Shape; Statistical analysis; Vectors;

fLanguage

English

Publisher

ieee

Conference_Titel

Biomedical Imaging: Nano to Macro, 2006. 3rd IEEE International Symposium on

Conference_Location

Arlington, VA

Print_ISBN

0-7803-9576-X

Type

conf

DOI

10.1109/ISBI.2006.1625118

Filename

1625118