NDLI: Study on a new method for detecting flatness defects of hot rolling strip

Content Provider	IEEE Xplore Digital Library
Author	Liu Jiang Wang Chang-song
Copyright Year	2010
Description	Author affiliation: Mechanical Engineering School, University of Science and Technology Beijing, China (Liu Jiang; Wang Chang-song)
Abstract	A new non-contact method for detecting the flatness of hot rolling strip, which is based on laser, CCD and digital image processing technology is presented. This new method projects linear lasers to the strip at some angle between 20 degree to 30 degree from the length and width direction of strip to become the latitudinal and longitudinal lines, and then uses one or several cameras to pick images of strip surface containing linear laser lines. The 3D curves are restored from the picked images containing 2D laser lines, and then the 3D surface of strip are built by the restored 3D curves, finally the flatness of strip is obtained based on the 3D surface. The paper explains the measuring principle, the component of system and the implementation in detail. During the implementation, mathmatical model and adjustment of camera, system calibration, image processing, restoring 3D curves, surface fitting, and analysis of flatness across the strip width are discussed.
Starting Page	1891
Ending Page	1896
File Size	612306
Page Count	6
File Format	PDF
ISBN	9781424450459
e-ISBN	9781424450466
DOI	10.1109/ICIEA.2010.5515453
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-06-15
Publisher Place	Taiwan
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Strips Surface emitting lasers Image restoration Surface fitting Cameras Charge coupled devices Digital images Laser modes Mathematical model Calibration strip component flatness detecting laser
Content Type	Text
Resource Type	Article

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