Open AccessAn Adaptive Method for Recognition of Dual-pointer Mechanical Instrument Based on Hough Transform
Author(s) -
Tong Ma,
Tiantai Li,
Ming Zhang,
Chuan Zhang,
Kexin Shi
Publication year - 2021
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/632/3/032038
Subject(s) - pointer (user interface) , hough transform , computer science , artificial intelligence , computer vision , dial , engineering , electrical engineering , image (mathematics)
For automatic and efficient reading of dual-pointer mechanical instruments in petroleum engineering applications, an adaptive recognition method based on Hough transform is proposed. Firstly, the instrument dial is detected by Hough transform. Then the center of circle is located, as well as the pointer is recognized. Finally, the linear relationship between the dial scale and the pointer is adopted to calculate the pointer reading. The experimental results show that the algorithm achieves high application value for the dual-pointer mechanical instrument with uniform scales.