PROBLEM TO BE SOLVED: To provide a device capable of performing detection of a vehicle and recognition of a number plate with a single device.SOLUTION: The device comprises: a plurality of cameras which are disposed with a predetermined space therebetween to perform photographing at the same time; a distance calculation unit which calculates a distance between the cameras and a photographed object on the basis of a plurality of images photographed by the plurality of cameras to output distance information; and a vehicle number recognition unit which performs operation of recognizing characters on a number plate on the basis of at least one photographed image photographed by the plurality of cameras and having the distance in the distance information obtained by the distance calculation unit within a predetermined range to output character recognition success/failure information indicating whether the recognition succeeded or not and vehicle number information recognized when the character recognition succeeded. The vehicle number of the vehicle is determined when the vehicle number recognition unit succeeded in the recognition of the vehicle number and it is determined that the presence of the vehicle is detected.
【課題】一つの装置で車両検知とナンバープレートの認識が可能な装置を提案する。【解決手段】複数のカメラは所定の間隔で配置して同時に撮影する。距離算出部は複数のカメラで撮影した複数の画像に基づいてカメラと撮影した物体との距離を算出して距離情報を出力する。車両番号認識部は、複数のカメラで撮影し、かつ距離算出部で得られた距離情報が所定範囲の距離である、少なくとも1枚の撮像画像に基づいてナンバープレートの文字認識動作を行い認識に成功したか否かの文字認識成否情報と文字認識が成功したときの認識した車両番号情報とを出力する。車両番号認識部が、車両番号の認識に成功したとき、車両の存在を検知したものとし、当該車両の車番を決定する。【選択図】 図1
VEHICLE DETECTION AND VEHICLE NUMBER RECOGNITION DEVICE
車両検知及び車両番号認識装置
09.11.2015
Patent
Elektronische Ressource
Japanisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS |
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