Chinese Journal of Quantum Electronics, Volume. 29, Issue 1, 58(2012)

Center-determination of laser spot based on sub-pixel positioning technology

Qiang LI*
Author Affiliations
  • [in Chinese]
  • show less

    Center-determination of laser spot is key to crown placement measurement system because it immediately concerns accuracy of the displacement. By using Matlab software, the grabbed laser spot image was smoothed with noise cancellation and median filtering to improve separating capacity of the targets and background, which set the terms for the object extraction. Then the image was segmented with Canny operator to extract target image from cluttered background. Finally, based on the extracted target, center coordinates of the laser spot can be found by using gray barycenter algorithm.

    Tools

    Get Citation

    Copy Citation Text

    LI Qiang. Center-determination of laser spot based on sub-pixel positioning technology[J]. Chinese Journal of Quantum Electronics, 2012, 29(1): 58

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Category:

    Received: Apr. 20, 2011

    Accepted: --

    Published Online: Jan. 16, 2012

    The Author Email: Qiang LI (liqiang9677@126.com)

    DOI:10.3969/j.issn.1007-5461. 2012.01.010

    Topics