67 / 2021-06-18 14:22:10
High Precision Multi-Frame Motion Detection for PMSLM’ Mover Based on Extended Upsampling Normalized Cross-Correlation
linear motor,normalized cross correlation,image processing,precision measurement
终稿
Jiwen Zhao / School of Electrical Engineering and Automation; Hefei University of Technology
A sub-pixel detection algorithm by means of extended upsampling normalized cross-correlation is studied to realize fast and accurate position detection of permanent magnet synchronous linear motor (PMSLM). First, a linear motor mover positioning system composed of a line scan camera and an aperiodic fence stripe image is designed to realize real-time signal acquisition during the motion of the mover. Second, a normalized cross-correlation (NCC) algorithm is utilized to obtain the initial estimation of displacement parameters between adjacent frames. Finally, a matrix multiplication discrete Fourier transform (DFT) is used to realize the local upsampling of the cross-correlation function, and the precise displacement parameters are obtained. Simulation results show that the proposed method can achieve 0.01 pixels accuracy. And the reliability and practicability of the proposed method are verified by setting up an experimental platform.
重要日期
  • 会议日期

    07月01日

    2021

    07月04日

    2021

  • 07月03日 2021

    报告提交截止日期

  • 11月03日 2021

    注册截止日期

主办单位
Huazhong University of Science and Technology, China
协办单位
University of Sydney, Australia
Southwest Jiaotong University, China
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询