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Determination of image conversion ratio for Transient Luminous Events (TLEs) observation system

Geem, C.H. and Mohd Mawardi, Saari and Amir Izzani, Mohamed and Mohd Herwan, Sulaiman (2017) Determination of image conversion ratio for Transient Luminous Events (TLEs) observation system. In: 8th IEEE Control and System Graduate Research Colloquium, ICSGRC 2017, 4-5 August 2017 , Shah Alam, Malaysia. pp. 217-220.. ISBN 978-153860380-2

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Abstract

Transient Luminous Events (TLEs) is a type of lightning events occurs at the upper atmosphere or in the D region of the ionosphere during a thunderstorm. The occurring of TLEs is fast and difficult observed by human eyes. Therefore, a camera sensitive to low light condition is needed for observation of this phenomena. In this paper, the camera is coupled with 50 mm f1.4 lens and Digital Video Recorder (DVR). A conversion of analog-to-digital between personal computer (PC) and the camera was applied to transfer the file by using DVR. This paper covers calculation of the conversion ratio between image dimension in PC monitor to a real dimension for horizontal and vertical axis. In the end of the paper, it is found that the calculated horizontal size is twice as smaller than the actual size and vertical size is 1.92 times smaller than actual size.

Item Type: Conference or Workshop Item (Speech)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Video recorder; Conversion ratio; TLEs; Lightning
Subjects: Q Science > QB Astronomy
T Technology > TK Electrical engineering. Electronics Nuclear engineering
Faculty/Division: Faculty of Electrical & Electronic Engineering
Depositing User: Dr. Amir Izzani Mohamed
Date Deposited: 20 Jul 2018 03:29
Last Modified: 20 Jul 2018 03:29
URI: http://umpir.ump.edu.my/id/eprint/18662
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