Sub-pixel Edge Detection of LED Probes Based On Partial Area Effect
Journal Title: EAI Endorsed Transactions on e-Learning - Year 2015, Vol 2, Issue 7
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%.
Authors and Affiliations
Chung-Yen Su, Li-An Yu, Nai-Kuei Chen, Jheng-Jyun Wang, Ying-Hao Liu, Shuen-De Wu
An Empirical Study of the Attention in the Interface of Learning Management System
This study aims to communicate the preliminary results of the Research taken forward by a UESiglo21 Research Group (Cordoba, Argentina). The same one focuses on the attention as cognitive process of renewed format, linke...
Maximizing Security Management Performance and Decisions with the MFC Cyber Security Model: e- learning case study
The Mean failure Cost (MFC) is a cascade of linear models that quantify security threats by taking into consideration the system’s stakeholders, security requirements, architectural components and threats. This quantitat...
Web Log Pre-processing and Analysis for Generation of Learning Profiles in Adaptive E-learning.
Adaptive E-learning Systems (AESs) enhance the efficiency of online courses in education by providing personalized contents and user interfaces that changes according to learner’s requirements and usage patterns. This pa...
A traditional-learning time predictive approach for e-learning systems in challenging environments
The explosion of world-wide-web has offered people a large number of online courses, e-classes and e-schools. Such e-learning applications contain a wide variety of learning materials which can confuse the choices of lea...
The PoSE Project: the Potential of Technological Learning for Postural Education in Schoolchildren
Back pain in children and adolescents is quite common, so developing preventive strategies for back pain is highly desirable. This article describes a planned school-based postural education project (PoSE) to promote hea...