Dynamics of vertebral column observed by stereovision and recurrent neural network model

Authors:
C. Fernando Mugarra Gonzalez;Stanisław Jankowski;Jacek J. Dusza;Vicente Carrilero López;Javier M. Duart Clemente
Affiliations:
Departament d'Enginyeria Electronica, Universitat de Valencia, Burjassot Valencia, Spain;Institute of Electronic Systems, Warsaw University of Technology, Warszawa, Poland;Institute of Electronic Systems, Warsaw University of Technology, Warszawa, Poland;Departament d'Enginyeria Electronica, Universitat de Valencia, Burjassot Valencia, Spain;Hospital Universitario La Fe, Valencia, Spain
Venue:
ISBMDA'05 Proceedings of the 6th International conference on Biological and Medical Data Analysis
Year:
2005

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Abstract

A new non-invasive method for investigation of movement of selected points on the vertebral column is presented. The registration of position of points marked on patient's body is performed by 4 infrared cameras. This experiment enables to reconstruct 3-dimensional trajectories of displacement of marked points. We introduce recurrent neural networks as formal nonlinear dynamical models of each point trajectory. These models are based only on experimental data and are set up of minimal number of parameters. Therefore they are suitable for pattern recognition problems.