Real-time Profile Measurement for Reinforcing Bar during Hot-rolling Using High-speed Color Image Processing Camera

  • Takahashi Eiji
    Production Systems Research Laboratory, Technical Development Group, Kobe Steel Ltd.
  • Katayama Ryo
    Production Systems Research Laboratory, Technical Development Group, Kobe Steel Ltd.
  • Sakoda Naokazu
    Production Systems Research Laboratory, Technical Development Group, Kobe Steel Ltd.

Bibliographic Information

Other Title
  • 高速カラー画像処理カメラによる異形棒鋼の圧延中リアルタイム形状計測
  • コウソク カラー ガゾウ ショリ カメラ ニ ヨル イギョウボウコウ ノ アツエン チュウ リアルタイム ケイジョウ ケイソク

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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.

Journal

  • Tetsu-to-Hagane

    Tetsu-to-Hagane 101 (3), 190-197, 2015

    The Iron and Steel Institute of Japan

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