Title
SPATIOTEMPORAL BLIND SOURCE SEPARATION USING DOUBLE-SIDED APPROXIMATE JOINT DIAGONALIZATION
Abstract
In independent component analysis (ICA) the common task is to achieve eitherspatial ortemporal independence by linearly mapping into a feature space. If the data possesses both spatial and temporal structures such as a sequence of images or 3d-scans taken at fixed time intervals, we can require the transformed data to be as indepen- dent as possible in both domains. First introduced by Stone using a joint entropy energy function, spatiotemporal ICA is a promising method for real-world data analysis. We propose a novel algorithm for performing spatiotemporal ICA by jointly diagonalizing various source conditions such as higher-order cumulants of the mixtures, both in time and in space. Similar to algebraic ICA algorithms, this provides a robust method for data analysis, which is confirmed by simulations.
Year
Venue
Field
2005
European Signal Processing Conference
Fixed time,Feature vector,Algebraic number,Matrix decomposition,Algorithm,Speech recognition,Cumulant,Joint entropy,Independent component analysis,Blind signal separation,Mathematics
DocType
ISBN
Citations 
Conference
978-160-4238-21-1
7
PageRank 
References 
Authors
0.68
5
5
Name
Order
Citations
PageRank
Fabian J. Theis193185.37
P. Gruber2515.80
Ingo R. Keck370.68
Anke Meyer-Bäse4152.58
Elmar Wolfgang Lang526036.10