Indoor visual positioning system using LED and mobile phone

Yingkui Gong; Zhengfa Shi; Yuqi Wang

doi:10.1117/12.2228824

26 January 2016 Indoor visual positioning system using LED and mobile phone

Yingkui Gong, Zhengfa Shi, Yuqi Wang

Proceedings Volume 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015; 97961N (2016) https://doi.org/10.1117/12.2228824
Event: Selected Proceedings of the Chinese Society for Optical Engineering Conferences held November 2015, 2015, Various, China

Abstract

An indoor visual positioning system is proposed, which using four or more LED ceiling lamps and a mobile phone. A 4*4 photodiode array is attached to the mobile phone to receive the three-dimensional coordinates of the LED lamps via visible light communication, and the front camera of the mobile phone is used to receive the high resolution image of the LED lamps. The mobile phone’s three-dimensional coordinates can be determined by matching the spot information and three-dimensional coordinates of the LED lamps with the image information provided by the mobile phone. An improved collinear equation model is proposed to build the mapping relationship between the three-dimensional coordinates of the LED lamps and the image information acquired by the front camera. A semi-physical simulation has been conducted and analyzed. The positioning scheme is proved to be valid and the positioning accuracy is up to decimeter level.

Citation Download Citation

Yingkui Gong, Zhengfa Shi, and Yuqi Wang "Indoor visual positioning system using LED and mobile phone", Proc. SPIE 9796, Selected Papers of the Photoelectronic Technology Committee Conferences held November 2015, 97961N (26 January 2016); https://doi.org/10.1117/12.2228824

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KEYWORDS

Light emitting diodes

Lamps

Cell phones

Cameras

3D image processing

3D modeling

Visualization

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