Patent · US Active

Pattern recognition system and method using Gabor functions

US9058517B1 · kind B1 · utility

4Cited by

4References

6Claims

0Family size

Assignee

I.R.I.S · BE

Inventors

Frederic Collet · Etterbeek, BE
Jordi Hautot · Neupré, BE
Michel Dauw · Machelen, BE
Pierre De Muelenaere · Court-Saint-Etienne, BE
Olivier Dupont · Sombreffe, BE
Gunter Hensges · Würselen, DE

Key dates

Filing date	Apr 16, 2014
Grant date	Jun 16, 2015
Priority date	—
Expiry date	Apr 16, 2034

Classification

Technology area (CPC G)Physics
CPC primaryG06V30/10
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A pattern recognition system and method which generates a feature vector by multiplying an image vector with a sparse matrix. The sparse matrix is generated from a Gabor function which is a sinusoidal wave multiplied by a Gaussian function. The Gabor function is a function of a set of parameters including a parameter related to the direction of the sinusoidal wave, a parameter related to a center of the Gabor function, and a parameter related to a wavelength of the sinusoidal wave. The wavelength takes at least two values, with a first wavelength value lower than or substantially equal to the distance between two adjacent centers of the Gabor function, and the first wavelength value is lower than a second wavelength value and higher than or substantially equal to half the second wavelength value.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.