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1. WO2006100000 - METHOD FOR RECOGNITION BETWEEN A FIRST OBJECT AND A SECOND OBJECT EACH REPRESENTED BY IMAGES

Publication Number WO/2006/100000
Publication Date 28.09.2006
International Application No. PCT/EP2006/002479
International Filing Date 17.03.2006
IPC
G06K 9/46 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
36Image preprocessing, i.e. processing the image information without deciding about the identity of the image
46Extraction of features or characteristics of the image
G06K 9/62 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
62Methods or arrangements for recognition using electronic means
CPC
G06K 9/00281
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
00268Feature extraction; Face representation
00281Local features and components; Facial parts
G06K 9/00288
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
00221Acquiring or recognising human faces, facial parts, facial sketches, facial expressions
00288Classification, e.g. identification
G06K 9/6273
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
KRECOGNITION OF DATA; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
9Methods or arrangements for reading or recognising printed or written characters or for recognising patterns, e.g. fingerprints
62Methods or arrangements for recognition using electronic means
6267Classification techniques
6268relating to the classification paradigm, e.g. parametric or non-parametric approaches
627based on distances between the pattern to be recognised and training or reference patterns
6271based on distances to prototypes
6272based on distances to cluster centroïds
6273Smoothing the distance, e.g. Radial Basis Function Networks
Applicants
  • CELIN TECHNOLOGY INNOVATION S.R.L. [IT]/[IT] (AllExceptUS)
  • MARCON, Marco [IT]/[IT] (UsOnly)
  • ONOFRIO, Davide [IT]/[IT] (UsOnly)
Inventors
  • MARCON, Marco
  • ONOFRIO, Davide
Agents
  • GATTI, Enrico
Priority Data
BG2005A00001324.03.2005IT
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD FOR RECOGNITION BETWEEN A FIRST OBJECT AND A SECOND OBJECT EACH REPRESENTED BY IMAGES
(FR) PROCEDE PERMETTANT D’ETABLIR UNE DISTINCTION ENTRE UN PREMIER OBJET ET UN DEUXIEME OBJET TOUS DEUX REPRESENTES PAR DES IMAGES
Abstract
(EN)
A method for recognition between a first object and a second object represented by at least one first image and at least one second image, comprising the following steps: defining a plurality of rectangular assemblies of random pixels; filtering said first image with the first n filters obtained from said rectangular assemblies of pixels to obtain n first filtered matrices; classifying said n first filtered matrices by providing a first centre and a first radius within a space of N dimensions; filtering said second image with the first n filters to obtain n second filtered matrices; classifying said n second filtered matrices by providing a second centre within said space of N dimensions; comparing said first centre and said first radius with said second centre; considering that recognition between said first object and said second object has taken place if at least one said second centre lies at a distance from said first centre which is less than or equal to at least one said first radius.
(FR)
L’invention concerne un procédé permettant d’établir une distinction entre un premier objet et un deuxième objet représentés par au moins une première image et au moins une deuxième image. Le procédé comprend les étapes consistant à : définir une pluralité d’ensembles rectangulaires de pixels aléatoires ; filtrer ladite première image par les n premiers filtres issus desdits ensembles rectangulaires de pixels afin d’obtenir n premières matrices filtrées ; classer lesdites n premières matrices filtrées en précisant un premier centre et un premier rayon dans un espace à N dimensions ; filtrer ladite deuxième image par les n premiers filtres afin d’obtenir n deuxièmes matrices filtrées ; classer lesdites n deuxièmes matrices filtrées en précisant un deuxième centre dans ledit espace à N dimensions ; comparer ledit premier centre et ledit premier rayon audite deuxième centre ; considérer qu’une distinction a été établie entre ledit premier objet et ledit deuxième objet si au moins un deuxième centre se situe à un distance dudit premier centre qui est inférieure ou égale à au moins un premier rayon.
Also published as
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