Improved Target Signal Source Tracking and Extraction Method Based on Outdoor Visible Light Communication Using an Improved Particle Filter Algorithm Based on Cam-Shift Algorithm

被引:6
作者
Liu, Zhipeng [2 ]
Guan, Weipeng [3 ]
Wen, Shangsheng [1 ]
机构
[1] South China Univ Technol, Sch Mat Sci & Engn, Guangzhou 510640, Peoples R China
[2] South China Univ Technol, Sch Elect & Informat Engn, Guangzhou 510640, Peoples R China
[3] South China Univ Technol, Sch Automat Sci & Engn, Guangzhou 510640, Peoples R China
来源
IEEE PHOTONICS JOURNAL | 2019年 / 11卷 / 06期
关键词
Outdoor visible light communication (outdoor-VLC); complementary metal-oxide-semiconductor (CMOS) sensor; premise of communication; improve particle filter algorithm; Cam-Shift algorithm; robustness; in real time; non-linear and non-gaussian environment; CMOS IMAGE SENSOR;
D O I
10.1109/JPHOT.2019.2940773
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An improved particle filter algorithm based on Cam-Shift algorithm applied to outdoor visible light communication (outdoor-VLC) is presented in this paper. In the outdoor-VLC system, accurately and completely tracking and extracting the target signal source Light Emitting Diode (LED) area is the premise for realizing communication. However, few existing studies pay attention to it. In the dynamic outdoor environment, there will be a lot of different environmental interferences (such as background interference, similar object interference, etc.), which greatly increases the difficulty of tracking and extracting the target signal source LED area. Therefore, in this paper, an improved tracking algorithm is proposed to solve the problem of how to track and extract the target signal source LED area accurately, stably and in real time in the outdoor-VLC system under various environmental interferences, so as to increase the feasibility of practical application of VLC system in outdoor scenes. This improved algorithm combines the particle filter algorithm and Cam-Shift algorithm originally. Experimental results show that the proposed algorithm has good accuracy, robustness and real-time performance under the environment of multiple interference factors. Accordingly, the proposed algorithm can be applied to the outdoor-VLC system with various environmental interferences, and can realize the actual first step of communication in VLC system based on image sensor well, laying a foundation for feature extraction, data transmission and other subsequent steps.
引用
收藏
页数:20
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