烟草在线检测与异物剔除系统  

Tobacco on-Line Detection and Foreign Matter Eliminating System

作　　者：陈杰[1] 李志敏[1] 钟先信[1] 陈文涛[1] 刘军[1] 

机构地区：[1]重庆大学光电技术及系统教育部重点实验室,重庆400044

出　　处：《光电工程》2003年第5期51-54,72,共5页Opto-Electronic Engineering

基　　金：国家计委基金资助项目 (2000-1882)。

摘　　要：以无屏闪光照系统作为光源,物料通过Y-Roller均散装置摊开后高速抛出时,CCD摄像机 采集到物料图像并送入PC机;在光学滤色镜组的作用下,烟草与异物的色度值拉开,以便后续的识别与剔除处理;建立中心阈值库以加快判别阈值的确定,用浮动阈值提高判别阈值的机敏度,提高系统的识别率。系统原理样机对白纸、鸡毛等典型异物的识别率可达到60%以上。With Flash illumination system without screen as light source, when materials pass through Y-Roller uniform spreading unit and being ejected, CCD camera samples the images of materials and sends them into PC. With the action of optical filter, the chromatic difference between tobacco and foreign matter is enhanced, thus is convenient for the follow-up recognition and elimination. The establishment of central threshold base speeds up the judgment and determination of threshold and the sensitivity of judgment threshold is improved by floating threshold, thus enhances the recognition ratio of the system. The recognition ratio of the prototype for the typical foreign materials such as white paper, chicken feather, etc. can be more than 60%.

关 键 词：实时测量 图像处理 CCD摄像机 浮动阈值 烟草 异物 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置] TS4[自动化与计算机技术—控制科学与工程]