Tetsu-to-Hagane
Online ISSN : 1883-2954
Print ISSN : 0021-1575
ISSN-L : 0021-1575
Regular Article
Real-time Profile Measurement for Reinforcing Bar during Hot-rolling Using High-speed Color Image Processing Camera
Eiji TakahashiRyo KatayamaNaokazu Sakoda
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2015 Volume 101 Issue 3 Pages 190-197

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Abstract

We have developed a new real-time profile measurement for rebar during hot-rolling. We have devised a unique optics combined the width measurement by spontaneous light and the geometry measurement by light section method. And then, we have realized the on-site application experiment by using the developed high-speed color image processing camera. High-speed demand was achieved by applying an FPGA real-time parallel-image-processing circuit to a color image. Moreover, taking advantage of simultaneous measurement of width and profile, we have confirmed the actual technologies, such as center position correction, and oscillating removal technique.

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© 2015 The Iron and Steel Institute of Japan
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