Sub-pixel edge detection of LED probes based on canny edge detection and iterative curve fitting

Nai Quei Chen, Jheng Jyun Wang, Li An Yu, Chung Yen Su

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Citations (Scopus)

Abstract

In recent years, the demands of LED are increasing. In order to test the quality of LEDs, we need LED probes to detect it, so the accuracy and manufacturing methods are attracted more attention by companies. LED probes are ground by people so far. When processing, we often consider the angle and radius of a probe (the radius is between 0.015 mm and 0.03 mm), so it is hard to balance between precision and quality. In this study, we proposed an effective method to measure the angle and radius of a probe. The method is based on Canny edge detection and a curve fitting with iteration. Experimental results show the effectiveness of the proposed method.

Original languageEnglish
Title of host publicationProceedings - 2014 International Symposium on Computer, Consumer and Control, IS3C 2014
PublisherIEEE Computer Society
Pages131-134
Number of pages4
ISBN (Print)9781479952779
DOIs
Publication statusPublished - 2014 Jan 1
Event2nd International Symposium on Computer, Consumer and Control, IS3C 2014 - Taichung, Taiwan
Duration: 2014 Jun 102014 Jun 12

Publication series

NameProceedings - 2014 International Symposium on Computer, Consumer and Control, IS3C 2014

Other

Other2nd International Symposium on Computer, Consumer and Control, IS3C 2014
CountryTaiwan
CityTaichung
Period14/6/1014/6/12

Keywords

  • Edge detection
  • LED
  • Probe
  • Sub-pixel edge detection

ASJC Scopus subject areas

  • Computer Science Applications
  • Control and Systems Engineering

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  • Cite this

    Chen, N. Q., Wang, J. J., Yu, L. A., & Su, C. Y. (2014). Sub-pixel edge detection of LED probes based on canny edge detection and iterative curve fitting. In Proceedings - 2014 International Symposium on Computer, Consumer and Control, IS3C 2014 (pp. 131-134). [6845477] (Proceedings - 2014 International Symposium on Computer, Consumer and Control, IS3C 2014). IEEE Computer Society. https://doi.org/10.1109/IS3C.2014.45