Machine Vision Based Automatic Detection Method of Indicating Values of a Pointer Gauge

• Published in: Mathematical problems in engineering Vol. 2015; no. 2015; pp. 1 - 19
• Main Authors: Jiang, Zhaoxuan, Liu, Jiwei, Liu, Lei, Chi, Jian-nan, Zhang, Guo-sheng
• Format: Journal Article
• Language: English
• Published: Cairo, Egypt Hindawi Publishing Corporation 01.01.2015; Hindawi Limited
• Subjects: Automation; Calibration; Cameras; Computer vision; Dials; Fittings; Gages; Gauges; Hough transformation; Hough transforms; Image detection; Machine vision; Mathematical analysis; Polar coordinates; Vision systems; Beijing China; China

This study proposes an automatic reading approach for a pointer gauge based on computer vision. Moreover, the study aims to highlight the defects of the current automatic-recognition method of the pointer gauge and introduces a method that uses a coarse-to-fine scheme and has superior performance in...