The Researches Of The Copper Flat Line Surface Blemish Identifying On-line

Currently the examination work of the copper flat line surface blemish depends on a person with a naked eye. However the attention of persons is easily disturbed by outside condition also persons are easily get tired because of continuous working, the reliability of check results is hard to assure. Owing to this kind of circumstance, this item aim is studying to develop a set of copper flat line on-line surface blemish examination equipments.This item combine calculator sense of vision technique with the numerical picture processing technique which can analyze the image character of the copper flat line surface blemish. Make sure that originally the item adoption calculator sense of vision technique and the numerical picture processing technique combine together, can analyze the picture characteristic of the copper flat line surface blemish, carrying out an on-line consecution to identify the copper flat line surface spirit bubble oxide and rowing nick etc. do a marking and record to the defective position, and carry on alarm according to the demand.This system adopts two sets of high speed cameras and a set of industrial computer which build up the system of calculator examination. The two sets of cameras respectively collect the two sides surface picture of the copper flat on-line, the examination analysis of the picture is controlled by the industrial computer, the picture collected by the computer will be carried on actually analysis, complete picture orientation, picture go to yawp, picture box off, picture make the two values turn, shape of several covariance, the surface blemish judges and positions, end realization to the blemish position do a marking, to the quantity of the blemish carry on total amount, when it's necessary carry on alarm to us. The paper mainly studies the contents and result as follows:(1) According to copper the flat line surface examines the technique request of the system automatically, putting forward the total design project of the system, including the software and the hardware design;(2) Put forward making use of VFW to carry on the project that the video frequency collects card two developments with concrete implement method, carry out the copper flat line surface picture real time;(3) Through the research toward the copper flat line surface picture, put forward a method of obtaining the yawp picture, finding out the system yawp characteristic, and designed a kind of intelligence filter to this characteristic;(4) According to the research of the copper flat line surface blemish characteristic, put forward a kind of blemish examination calculate way according to the small district, it improve the accuracy of the blemish examination. Through the experiment verification, the above technique and methods all obtained better results.