公开(公告)号：EP1383088A4

公开(公告)日：2007-05-30

申请号：EP02722729

申请日：2002-04-24

申请人： NIPPON CONLUX CO LTD

发明人： SUGATA MASANORI ,  TAKEDA TOMOKUNI

IPC分类号： G07D5/02 ,  G06T7/00 ,  G06T7/60 ,  G07D5/00 ,  G07D5/10

CPC分类号： G07D5/10 ,  G07D5/005

摘要： A coin distinguishing method capable of concurrently picking up the images of the surface and the side of a coin by using two light sources, downsizing a device, and providing high-accuracy coin distinguishing. The side of a coin (C) falling through a coin passage (101) in an advancing direction is irradiated with a first light (105) from a flash shooting first light source (104), and the outer periphery portion of the surface of the coin (C) is irradiated with a second light (107) from a flash shooting second light source (106). Then, a first reflection light (108) reflected off the side of the coin (C) and a second reflection light (109) reflected off the outer peripheral portion of the coin (C) are input to an image sensor (110) to concurrently obtain the images of the side and the surface of the coin (C). A mill direction distinguishing unit (113) detects the presence/absence of mills from the picked up images of the coin (C), and a projecting pattern distinguishing unit (114) detects projecting patterns to distinguish the coin (C) based on the detection results.

摘要翻译： 一种硬币识别方法，能够通过使用两个光源同时拾取硬币的表面和侧面的图像，使装置小型化并提供高精度的硬币识别。 从闪光拍摄用第一光源（104）向第一光（105）照射从硬币通路（101）向前进方向落下的硬币（C）的一侧，该硬币的表面的外周部 用来自闪光拍摄第二光源（106）的第二光（107）照射硬币（C）。 然后，从硬币（C）侧反射的第一反射光（108）和从硬币（C）的外周边部分反射的第二反射光（109）被同时输入到图像传感器（110） 获得硬币（C）的侧面和表面的图像。 研磨方向判别部（113）根据检测出的硬币（C）的摄像图像来检测研磨机的有无，投影图案判别部（114）根据检测结果来检测用于区别硬币（C）的投影图案 结果。