Title
Automatic landmarking of 2d medical shapes using the growing neural gas network
Abstract
MR Imaging techniques provide a non-invasive and accurate method for determining the ultra-structural features of human anatomy. In this study, we utilise a novel approach to segment out the ventricular system in a series of high resolution T1-weighted MR images. Our approach is based on an automated landmark extraction algorithm which automatically selects points along the contour of the ventricles from a series of 2D MRI brain images. Automated landmark extraction is accomplished through the use of the self-organising network the growing neural gas (GNG) which is able to topographically map the low dimension of the network to the high dimension of the manifold of the contour without requiring a priori knowledge of the structure of the input space. The GNG method is compared to other self-organising networks such as Kohonen and Neural Gas (NG) maps and an error metric is applied to quantify the performance of our algorithm compared to the other two.
Year
DOI
Venue
2005
10.1007/11569541_22
CVBIA
Keywords
Field
DocType
mr imaging technique,self-organising network,medical shape,neural gas network,high resolution,t1-weighted mr image,accurate method,neural gas,high dimension,automated landmark extraction,automated landmark extraction algorithm,automatic landmarking,gng method,a priori knowledge,topographic map,brain imaging
Computer vision,Pattern recognition,Landmark point,Computer science,Extraction algorithm,Minimum description length,A priori and a posteriori,Self-organizing map,Artificial intelligence,Landmark,Manifold,Neural gas
Conference
Volume
ISSN
ISBN
3765
0302-9743
3-540-29411-2
Citations 
PageRank 
References 
12
0.83
10
Authors
4
Name
Order
Citations
PageRank
Anastassia Angelopoulou110221.29
Alexandra Psarrou219927.14
José Garcia Rodriguez3559.71
Kenneth Revett431327.15