Paper Info
Title
Eccentricity estimator for wide-angle fovea sensor by FMI descriptor approach
Abstract
This paper proposes a method for estimating eccentricity that corresponds to an incident angle to a fovea sensor. The proposed method applies Fourier-Mellin Invariant descriptor for estimating rotation, scale, and translation, by taking both geometrical distortion and non-uniform resolution of a space-variant image by the fovea sensor into account. The following 2 points are focused in this paper. One is to use multi-resolution images computed by discrete wavelet transform for reducing noise caused by foveation properly. Another is to use a variable window function (although the window function is generally used for reducing DFT leakage caused by both ends of a signal.) for changing an effective field of view (FOV) in order not to sacrifice high accuracy. The simulation compares the root mean square (RMS) of the foveation noise between uniform and non-uniform resolutions, when a resolution level and a FOV level are changed, respectively. Experimental results show that the proposed method is consistent with the wide-angle space-variant image by the fovea sensor, i.e., it does not sacrifice high accuracy in the central FOV.
Year
DOI
Venue
2008
10.1109/ROBIO.2009.4913201
ROBIO
Keywords
Field
DocType
eye,non-uniform resolution,high accuracy,wide-angle fovea sensor,image resolution,multiresolution images,discrete wavelet transform,fourier-mellin invariant descriptor,fovea sensor,multi-resolution image,foveation noise,resolution level,central fov,geometrical distortion,fmi descriptor,eccentricity estimator,variable window function,fov level,nonuniform resolution,fmi descriptor approach,root mean square,discrete wavelet transforms,geometry,space-variant image,noise,correlation,lenses,field of view,optical imaging
Field of view,Computer vision,Eccentricity (behavior),Discrete wavelet transform,Root mean square,Artificial intelligence,Distortion,Image resolution,Mathematics,Window function,Estimator
Conference
ISBN
Citations 
PageRank 
978-1-4244-2679-9
0
0.34
References 
Authors
4
2
Name
Order
Citations
PageRank
Sota Shimizu146.52
Burdick, J.W.22988516.87