A quick algorithm to detect LED array from the background in image sensor based visible light communication

Peng Liu, Xin Chen, Yue Li, Jiang Liu

研究成果: Conference contribution

抜粋

A quick detection algorithm based on the novel designed LED array and the connected component labeling technique is proposed and applied in image sensor based visible light communication (IS-VLC) system. Inspired by the Quick Response (QR) code design, the four corner LEDs on the array are defined as flag LEDs and three of them maintain on status all the time. A novel method to recognize flag LEDs by searching an isosceles triangle with the largest area is also proposed. By means of recognizing the flag LEDs, the proposed algorithm is able to detect and extract the LED array from the background quickly even though relative rotation exists between the LED array and an image sensor, which is particularly suitable for the LED-ID applications such as indoor positioning. An IS-VLC system is designed and the experiment is conducted to evaluate the performance. Compared with the Hough transform based LED array detection, it is proved that the proposed algorithm has lower bit error rate (BER) and shorter operating time.

元の言語English
ホスト出版物のタイトルIST 2018 - IEEE International Conference on Imaging Systems and Techniques, Proceedings
出版者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子版)9781538666289
DOI
出版物ステータスPublished - 2018 12 14
イベント2018 IEEE International Conference on Imaging Systems and Techniques, IST 2018 - Krakow, Poland
継続期間: 2018 10 162018 10 18

Other

Other2018 IEEE International Conference on Imaging Systems and Techniques, IST 2018
Poland
Krakow
期間18/10/1618/10/18

ASJC Scopus subject areas

  • Computer Vision and Pattern Recognition
  • Signal Processing

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  • これを引用

    Liu, P., Chen, X., Li, Y., & Liu, J. (2018). A quick algorithm to detect LED array from the background in image sensor based visible light communication. : IST 2018 - IEEE International Conference on Imaging Systems and Techniques, Proceedings [8577141] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IST.2018.8577141