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1. FR2917869 - Vertical target object i.e. rectangular shaped American signaling panel, detecting method for motor vehicle, involves regrouping detected segments into parallelograms, and detecting target object from parallelograms, using control unit

Office
France
Application Number 0704558
Application Date 25.06.2007
Publication Number 2917869
Publication Date 26.12.2008
Grant Number 2917869
Grant Date 09.10.2009
Publication Kind B1
IPC
G06K 9/48
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
48by coding the contour of the pattern
B60W 40/00
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
WCONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION; CONTROL SYSTEMS SPECIALLY ADAPTED FOR HYBRID VEHICLES; ROAD VEHICLE DRIVE CONTROL SYSTEMS FOR PURPOSES NOT RELATED TO THE CONTROL OF A PARTICULAR SUB-UNIT
40Estimation or calculation of driving parameters for road vehicle drive control systems not related to the control of a particular sub-unit
G06T 5/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
G06T 7/00
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
CPC
G06V 20/582
G06V 20/63
Applicants VALEO VISION SA
Inventors HERBIN SAHLER ANNE
CHANUSSOT LOWIK
MOUTARDE FABIEN
Priority Data 0704558 25.06.2007 FR
Title
(EN) Vertical target object i.e. rectangular shaped American signaling panel, detecting method for motor vehicle, involves regrouping detected segments into parallelograms, and detecting target object from parallelograms, using control unit
(FR) PROCEDE DE DETECTION D'UN OBJET CIBLE
Abstract
(EN) The method involves detecting contours in an image acquired by a video camera and detecting horizontal and vertical segments based on size and a slope of the detected contours, using an image processing device. The detected segments are regrouped into parallelograms i.e. rectangles, and a vertical target object i.e. rectangular shaped American signaling panel, is detected from the parallelograms, using a control unit. Independent claims are also included for the following: (1) a vertical target object detecting device comprising an image processing device (2) a computer program product comprising instructions to perform a method for detecting a vertical target object.
(FR) L'invention concerne un procédé de détection d'un objet cible dans un environnement se trouvant dans le champ d'une caméra vidéo. Elle se caractérise en ce que le procédé comporte les étapes de :- détecter des contours dans une image acquise par la caméra vidéo ;- détecter des segments à partir desdits contours détectés ;- regrouper des segments détectés en parallélogrammes ; et- détecter un objet cible à partir desdits parallélogrammes.Application : véhicule automobile