Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera
We consider indoor positioning based on visible light where the receiver adopts a commercial smartphone camera. Two positioning approaches are proposed, either the light emitting diode (LED) positions are known or not. When the LED positions are known, the LED light signal intensities are measured t...
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| Format: | Article |
| Language: | English |
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IEEE
2018-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/8519633/ |
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| author | Jiaojiao Xu Chen Gong Zhengyuan Xu |
| author_facet | Jiaojiao Xu Chen Gong Zhengyuan Xu |
| author_sort | Jiaojiao Xu |
| collection | DOAJ |
| description | We consider indoor positioning based on visible light where the receiver adopts a commercial smartphone camera. Two positioning approaches are proposed, either the light emitting diode (LED) positions are known or not. When the LED positions are known, the LED light signal intensities are measured to identify the identity of each LED in the image. Triangular similarity is adopted to estimate the receiver position. When the LED positions are unknown, we develop a shift rotation model on the receiver movement and further propose a novel indoor positioning algorithm. The algorithm estimates the rotation center in the image instead of treating the image center as the rotation center, leading to reduced positioning error. To achieve high accuracy, a location reference point is set such that the positioning errors of multiple LEDs have little effect. According to the experimental results, the average positioning error can be reduced to 1 cm, which outperforms the reported experimental results with receiver-ceiling distance larger than 2 m. |
| format | Article |
| id | doaj-art-a29fc5e8acd24c2580dfa1094eb372eb |
| institution | Matheson Library |
| issn | 1943-0655 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-a29fc5e8acd24c2580dfa1094eb372eb2025-07-01T23:43:17ZengIEEEIEEE Photonics Journal1943-06552018-01-0110611710.1109/JPHOT.2018.28785328519633Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone CameraJiaojiao Xu0https://orcid.org/0000-0003-4903-2532Chen Gong1https://orcid.org/0000-0002-7150-0024Zhengyuan Xu2https://orcid.org/0000-0001-9075-8875Key Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, School of Information Science and Technology, University of Science and Technology of China, Hefei, ChinaKey Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, School of Information Science and Technology, University of Science and Technology of China, Hefei, ChinaKey Laboratory of Wireless-Optical Communications, Chinese Academy of Sciences, School of Information Science and Technology, University of Science and Technology of China, Hefei, ChinaWe consider indoor positioning based on visible light where the receiver adopts a commercial smartphone camera. Two positioning approaches are proposed, either the light emitting diode (LED) positions are known or not. When the LED positions are known, the LED light signal intensities are measured to identify the identity of each LED in the image. Triangular similarity is adopted to estimate the receiver position. When the LED positions are unknown, we develop a shift rotation model on the receiver movement and further propose a novel indoor positioning algorithm. The algorithm estimates the rotation center in the image instead of treating the image center as the rotation center, leading to reduced positioning error. To achieve high accuracy, a location reference point is set such that the positioning errors of multiple LEDs have little effect. According to the experimental results, the average positioning error can be reduced to 1 cm, which outperforms the reported experimental results with receiver-ceiling distance larger than 2 m.https://ieeexplore.ieee.org/document/8519633/Indoor positioning systemvisible lightLEDcamera |
| spellingShingle | Jiaojiao Xu Chen Gong Zhengyuan Xu Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera IEEE Photonics Journal Indoor positioning system visible light LED camera |
| title | Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera |
| title_full | Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera |
| title_fullStr | Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera |
| title_full_unstemmed | Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera |
| title_short | Experimental Indoor Visible Light Positioning Systems With Centimeter Accuracy Based on a Commercial Smartphone Camera |
| title_sort | experimental indoor visible light positioning systems with centimeter accuracy based on a commercial smartphone camera |
| topic | Indoor positioning system visible light LED camera |
| url | https://ieeexplore.ieee.org/document/8519633/ |
| work_keys_str_mv | AT jiaojiaoxu experimentalindoorvisiblelightpositioningsystemswithcentimeteraccuracybasedonacommercialsmartphonecamera AT chengong experimentalindoorvisiblelightpositioningsystemswithcentimeteraccuracybasedonacommercialsmartphonecamera AT zhengyuanxu experimentalindoorvisiblelightpositioningsystemswithcentimeteraccuracybasedonacommercialsmartphonecamera |