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%.

Details

Title
Sub-pixel Edge Detection of LED Probes Based On Partial Area Effect
Author
Chung-Yen, Su; Li-An, Yu; Chen, Nai-Kuei; Wang, Jheng-Jyun; Ying-Hao, Liu; Wu, Shuen-De
Section
Journal_Article
Publication year
2015
Publication date
Oct 2015
Publisher
European Alliance for Innovation (EAI)
e-ISSN
20329253
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2306235309
Copyright
© 2015. This work is licensed under http://creativecommons.org/licenses/by/3.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.