Impact of Defocusing of the Camera Lens on the Image in Optical Camera Communications

Hassan, Navid, Huang, Yingjia, Shou, Zhenyi, Ghassemlooy, Zabih, Zvanovec, Stanislav, Zhang, Min and Tang, Xuan (2018) Impact of Defocusing of the Camera Lens on the Image in Optical Camera Communications. In: First West Asian Colloquium on Optical Wireless Communications, 25 April 2018, Isfahan.

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Abstract

In this paper, we propose a theoretical model for the intensity of a blurred image of a light source (LS) due to defocusing in optical camera communications. The blurred image is characterized with four parameters of half power full width, maximum intensity, left and right slope of hazy area and we relate them to the LS, channel, and camera settings. We experimentally investigate the impact of these parameters on characterization of the blurred image and compare it with the predicted data. The results show that if the size of the LS compared to its distance from the camera is less than a certain value set by the camera settings, the interference level between two close LSs increases, i.e. by increasing the link span, the size of the image increases.

Item Type: Conference or Workshop Item (Paper)
Subjects: H600 Electronic and Electrical Engineering
P900 Others in Mass Communications and Documentation
Department: Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
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Depositing User: Becky Skoyles
Date Deposited: 13 Jul 2018 09:28
Last Modified: 18 Jul 2018 09:15
URI: http://nrl.northumbria.ac.uk/id/eprint/34975

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