Title
Visual motion and structure estimation using sliding mode observers
Abstract
The problem of estimating motion and structure from a sequence of images has been a major research theme in machine vision for many years and remains one of the most challenging ones. In this work, we use sliding mode observers to estimate the motion and the structure of a moving body with the aid of a change-coupled device (CCD) camera. We consider a variety of dynamical systems which arise in machine vision applications and develop a novel identification procedure for the estimation of both constant and time-varying parameters. The basic procedure introduced for parameter estimation is to recast image feature dynamics linearly in terms of unknown parameters and construct a sliding mode observer to produce asymptotically correct estimates of the observed image features, and then use the observer input to compute parameters. Much of our analysis has been substantiated by computer simulations and real experiments.
Year
DOI
Venue
2008
10.1080/00207720701747655
Int. J. Systems Science
Keywords
Field
DocType
structure estimation,parameter estimation,observed image feature,image feature dynamics linearly,basic procedure,observer input,machine vision,asymptotically correct estimate,mode observer,visual motion,novel identification procedure,machine vision application,computer simulation,image features,dynamic system,perspective,ccd camera
State observer,Computer vision,Machine vision,Control theory,Feature (computer vision),Artificial intelligence,Motion estimation,Estimation theory,Observer (quantum physics),System identification,Variable structure control,Mathematics
Journal
Volume
Issue
ISSN
39
2
0020-7721
Citations 
PageRank 
References 
2
0.37
22
Authors
4
Name
Order
Citations
PageRank
Mustafa Ünel115420.71
Asif Sabanovic224137.57
Burak Yilmaz320.37
Eray Dogan420.37