@inproceedings{669beafec2c940a4a53e36477eb43bbc,
title = "Portable vision screenings system",
abstract = "Visual acuity (VA) is a mandatory test in vision screenings. It is used to examine if there are any potential eye-sight problems in patients. Currently, the VA tests are performed in an analog format, such as using a paper chart and a light box. These materials are easily degraded by dirt and moist. Moreover, the analog format is difficult to be carried out in overseas screenings as paper charts and luminous devices should be carried. Sometimes, accurate measurements cannot be obtained in remote areas in overseas screenings due to various constraints. To solve these difficulties, an electronic version of the VA chart is designed so that a portable system can be developed to perform VA examination. The process of examination can be automatically performed by using the web socket as a communication media and determining answers through correlation-based template matching. Results show that VA symbols can be remotely re-sized and rendered accurately in mobile devices such as tablets and smart phones. Besides, we also evaluated the performance on executing correlation-based template matching algorithms over JavaScript. It was found that JavaScript was sufficient to support the required computations in image recognition algorithms irrespective of its limitations such as single-threaded and interpretation nature.",
keywords = "Sockets, Testing, Performance evaluation, Indexes, Smart phones, Hyperspectral imaging, Visualization",
author = "Lin, {Yeun Lok} and Law, {Ngai Fong} and Do, {Chi Wai}",
year = "2018",
month = feb,
day = "5",
doi = "10.1109/APSIPA.2017.8282135",
language = "English",
series = "Proceedings - 9th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "754--759",
booktitle = "Proceedings - 9th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017",
note = "9th Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA ASC 2017 ; Conference date: 12-12-2017 Through 15-12-2017",
}