Research Article
Sub-pixel Edge Detection of LED Probes Based On Partial Area Effect
@ARTICLE{10.4108/icst.iniscom.2015.258308, author={Chung-Yen Su and Li-An Yu and Nai-Kuei Chen and Jheng-Jyun Wang and Ying-Hao Liu and Shuen-De Wu}, title={Sub-pixel Edge Detection of LED Probes Based On Partial Area Effect}, journal={EAI Endorsed Transactions on e-Learning}, volume={2}, number={7}, publisher={EAI}, journal_a={EL}, year={2015}, month={4}, keywords={edge detection, sub-pixel edge detection, probe, led}, doi={10.4108/icst.iniscom.2015.258308} }- Chung-Yen Su
Li-An Yu
Nai-Kuei Chen
Jheng-Jyun Wang
Ying-Hao Liu
Shuen-De Wu
Year: 2015
Sub-pixel Edge Detection of LED Probes Based On Partial Area Effect
EL
EAI
DOI: 10.4108/icst.iniscom.2015.258308
Abstract
In recent years, the demands for LED are increasing. For testing the quality of LEDs, a lot of LED probes are necessary, so the high precision and efficient methods are paid more attention by industrial applications. This paper is focused on the measurement of the angle and the radius of a LED probe by computer vision. In previous paper, we proposed an effective method based on Canny edge detection and curve fitting method with iteration. In this paper we add a new sub-pixel edge detection method: partial area effect. We improve the preciseness of angle from error 2.3% to 1.43% and enhance the accuracy of radius more than 30%.
Copyright © 2015 Ch-Y. Su et al., licensed to EAI. This is an open access article distributed under the terms of the Creative Commons Attribution licence (http://creativecommons.org/licenses/by/3.0/), which permits unlimited use, distribution and reproduction in any medium so long as the original work is properly cited.
