Title
A bilinear model for temporally coherent respiratory motion
Abstract
We propose a bilinear model of respiratory organ motion. The advantages of classical statistical shape modelling are combined with a preconditioned trajectory basis for separately modelling the shape and motion components of the data. The separation of a linear basis into bilinear form leads to a more compact representation of the underlying physical process and the resulting model respects the temporal regularity within the training data, which is an important property for modelling quasi-periodic data. Bilinear modelling is combined with a Bayesian reconstruction algorithm for sparse data under observation noise. By applying the model to liver motion data, we show that our bilinear formulation of respiratory motion is significantly more parsimonious and can even outperform linear PCA-based models.
Year
DOI
Venue
2014
10.1007/978-3-319-13692-9_21
ABDI@MICCAI
Keywords
Field
DocType
Respiratory motion,Bilinear model,Liver motion
Mathematical optimization,Bilinear form,Organ Motion,Respiratory motion,Algorithm,Reconstruction algorithm,Trajectory,Sparse matrix,Mathematics,Bayesian probability,Bilinear interpolation
Conference
Volume
ISSN
Citations 
8676
0302-9743
0
PageRank 
References 
Authors
0.34
8
2
Name
Order
Citations
PageRank
Frank Preiswerk1777.16
Philippe C. Cattin236746.80