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1. WO2010084521 - METHOD AND APPARATUS FOR IDENTIFYING RAINDROPS ON A WINDSHIELD

Publication Number WO/2010/084521
Publication Date 29.07.2010
International Application No. PCT/JP2009/000181
International Filing Date 20.01.2009
IPC
G01N 21/17 2006.01
GPHYSICS
01MEASURING; TESTING
NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible or ultra-violet light
17Systems in which incident light is modified in accordance with the properties of the material investigated
B60S 1/08 2006.01
BPERFORMING OPERATIONS; TRANSPORTING
60VEHICLES IN GENERAL
SSERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR
1Cleaning of vehicles
02Cleaning windscreens, windows, or optical devices
04Wipers or the like, e.g. scrapers
06characterised by the drive
08electrically driven
G01W 1/14 2006.01
GPHYSICS
01MEASURING; TESTING
WMETEOROLOGY
1Meteorology
14Rainfall or precipitation gauges
CPC
G06T 2207/10021
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10016Video; Image sequence
10021Stereoscopic video; Stereoscopic image sequence
G06T 2207/30252
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
30Subject of image; Context of image processing
30248Vehicle exterior or interior
30252Vehicle exterior; Vicinity of vehicle
G06T 5/005
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
001Image restoration
005Retouching; Inpainting; Scratch removal
G06T 5/50
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
50by the use of more than one image, e.g. averaging, subtraction
Applicants
  • 本田技研工業株式会社 HONDA MOTOR CO., LTD. [JP]/[JP] (AllExceptUS)
  • ガイコイェンツ GAYKO, Jens (UsOnly)
  • ローザー マルティン・ベンヤミン ROSER, Martin Benjamin (UsOnly)
  • ハリメー、ヤド・カミレ HALIMEH, Jad Camille (UsOnly)
Inventors
  • ガイコイェンツ GAYKO, Jens
  • ローザー マルティン・ベンヤミン ROSER, Martin Benjamin
  • ハリメー、ヤド・カミレ HALIMEH, Jad Camille
Agents
  • 大島陽一 OSHIMA, Yoichi
Priority Data
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) METHOD AND APPARATUS FOR IDENTIFYING RAINDROPS ON A WINDSHIELD
(FR) PROCÉDÉ ET APPAREIL D'IDENTIFICATION DE GOUTTES DE PLUIE SUR UN PARE-BRISE
(JA) ウインドシールド上の雨滴を同定するための方法及び装置
Abstract
(EN)
A vehicle vision system is used to detect raindrops on a windshield. A raindrop candidate on a windshield is usually represented with an optical model as a convex lens formed from a section of a sphere. Said optical model is used to reconstruct the image of each raindrop from the scene in front of the vehicle viewed through the windshield. If there is significant correlation between the actual image of the raindrop candidate and the reconstructed raindrop image, the raindrop candidate is identified as an actual raindrop. The identification result can be used to start wipers or other apparatuses.
(FR)
L'invention porte sur un système de vision de véhicule qui est utilisé pour détecter des gouttes de pluie sur un pare-brise. Une goutte de pluie candidate sur un pare-brise est habituellement représentée par un modèle optique sous la forme d'une lentille convexe formée à partir d'une section d'une sphère. Ledit modèle optique est utilisé pour reconstruire l'image de chaque goutte de pluie à partir de la scène devant le véhicule, visualisée à travers le pare-brise. S'il y a une corrélation significative entre l'image réelle de la goutte de pluie candidate et l'image de goutte de pluie reconstruite, la goutte de pluie candidate est identifiée comme étant une goutte de pluie réelle. Le résultat d'identification peut être utilisé pour démarrer les essuie-glaces ou d'autres appareils.
(JA)
 車両用ビジョンシステムを利用してウインドシールド上の雨滴を検出する。ウインドシールド上の雨滴候補を、通常、球の一切片からなる凸レンズとしての光学モデルにより表す。この光学モデルを用いて、各雨滴の像を、ウインドシールドを透過する車両前方の景色から再構成する。雨滴候補の実際の像と再構成雨滴像との間の相関が高い場合には、雨滴候補が実際に雨滴であると同定することができる。同定結果は、ワイパ等の他の装置を起動するために利用することができる。
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