LED阵列非均匀亮度自动补偿系统:定位LED中心的图像处理程序

Q3 Multidisciplinary

Walailak Journal of Science and Technology Pub Date : 2011-11-13 DOI:10.2004/WJST.V5I2.90

W. Kurdthongmee, Taofik Lamsub

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引用次数: 0

摘要

为了能够准确地研究光对植物或某些生物体生长的影响，光源必须能够改变其波长、亮度和照射时间。发光二极管(led)在这种应用中有很多好处。为了应用，光源需要集成到由数千个可变波长led组成的面板中。在面板内部，led通常会产生大约15%到20%或更多的亮度变化，除非有一个良好的匹配led选择。本文讨论了led亮度变化存在的问题和现有的解决方案，并提出了基于自动图像处理的程序。这些例程已被证明可以正确地定位面板中几乎所有led的位置。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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An Automatic System for Non-Uniform Brightness Compensation of LED Arrays: Image Processing Routines to Locate LED Centers

To be able to accurately study the effect of light on the growth of plants or some living organisms, a light source must be capable of changing its wavelength, brightness and exposure duration. Light Emitting Diodes (LEDs) have many benefits for use in this application. To be applicable, the light source needs to be integrated into a panel consisting of thousands of variable wavelength LEDs. Inside the panel, LEDs normally yield significant variations in brightness of around 15 to 20 % or more unless there is a fine selection of matched LEDs. In this paper, the problems and previously proposed solutions to the variations in brightness of LEDs are addressed and proposed automatic image processing based routines are presented. The routines have been proved to correctly locate the positions of almost all LEDs in the panel.

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来源期刊

Walailak Journal of Science and Technology Multidisciplinary-Multidisciplinary

CiteScore

0.80

自引率

0.00%

发文量

审稿时长

24 weeks

期刊介绍： The Walailak Journal of Science and Technology (Walailak J. Sci. & Tech. or WJST), is a peer-reviewed journal covering all areas of science and technology, launched in 2004. It is published 12 Issues (Monthly) by the Institute of Research and Innovation of Walailak University. The scope of the journal includes the following areas of research : - Natural Sciences: Biochemistry, Chemical Engineering, Chemistry, Materials Science, Mathematics, Molecular Biology, Physics and Astronomy. -Life Sciences: Allied Health Sciences, Biomedical Sciences, Dentistry, Genetics, Immunology and Microbiology, Medicine, Neuroscience, Nursing, Pharmaceutics, Psychology, Public Health, Tropical Medicine, Veterinary. -Applied Sciences: Agricultural, Aquaculture, Biotechnology, Computer Science, Cybernetics, Earth and Planetary, Energy, Engineering, Environmental, Food Science, Information Technology, Meat Science, Nanotechnology, Plant Sciences, Systemics