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

• Published in: 鉄と鋼 Vol. 101; no. 3; pp. 190 - 197
• Main Authors: 高橋, 英二, 片山, 亮, 迫田, 尚和
• Format: Journal Article
• Language: Japanese
• Published: 一般社団法人 日本鉄鋼協会 2015
• Subjects: camera; color image processing; laser; real-time profile measurement; reinforcing bar
• ISSN: 0021-1575; 1883-2954
• DOI: 10.2355/tetsutohagane.101.190

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.