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1. WO2012062933 - FACIAL FEATURES DETECTION

Publication Number WO/2012/062933
Publication Date 18.05.2012
International Application No. PCT/EP2011/070079
International Filing Date 14.11.2011
IPC
G06K 9/00 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
CPC
G06K 9/00248
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
00228Detection; Localisation; Normalisation
00248using facial parts and geometric relationships
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
Applicants
  • ST-ERICSSON SA [CH]/[CH] (AllExceptUS)
  • AUBERGER, Stéphane [FR]/[FR] (UsOnly)
  • GRATON, Adrien [FR]/[FR] (UsOnly)
Inventors
  • AUBERGER, Stéphane
  • GRATON, Adrien
Agents
  • VERDURE, Stéphane
Priority Data
10306248.512.11.2010EP
61/42152109.12.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) FACIAL FEATURES DETECTION
(FR) DÉTECTION DE CARACTÉRISTIQUES FACIALES
Abstract
(EN)
There is described a method for facial features detection in a picture frame containing a skin tone area, comprising dividing (12) the skin tone area into a number of parts; and for each part of the skin tone area, constructing (14) a luminance map, constructing an edge map by extracting (18) edges from the luminance map, defining (20) an edge magnitude threshold, building (22) a binary map from the edge map by keeping only the edges having a magnitude beyond the defined edge magnitude threshold and eliminating the others; and then extracting (24) facial features from the built binary map. An inter-related facial features detector is further described.
(FR)
L'invention concerne un procédé de détection de caractéristiques faciales dans une trame d'image contenant une zone de teint de peau, comprenant les étapes consistant à diviser (12) la zone de teint de peau en un certain nombre de parties ; et pour chaque partie de la zone de teint de peau, construire (14) une carte de luminance, créer une carte de contours en extrayant (18) les contours à partir de la carte de luminance, définir (20) un seuil de grandeur de contour, établir (22) une carte binaire à partir de la carte de contours en gardant uniquement les contours ayant une grandeur excédant le seuil de grandeur de contour défini et en éliminant les autres ; puis extraire (24) des caractéristiques faciales à partir de la carte binaire construite. Un détecteur de caractéristiques faciales inter-reliées est en outre décrit.
Also published as
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