• Title/Summary/Keyword: Lambertian Color Segmentation

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A Study on Lambertian Color Segmentation and Canny Edge Detection Algorithms for Automatic Display Detection in CamCom (저속 카메라 통신용 자동 디스플레이 검출을 위한 Lambertian 색상 분할 및 Canny Edge Detection 알고리즘 연구)

  • Han, Jungdo;Said, Ngumanov;Vadim, Li;Cha, Jaesang
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.11 no.5
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    • pp.615-622
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    • 2018
  • Recent advancements in camera communication (CamCom) technology using visible light exploited to use display as an luminance source to modulate the data for visible light data communication. The existing display-CamCom techniques uses the selected region of interest based camera capturing approach to detect and decode the 2D color coded data on display screen. This is not effective way to do communicate when the user on mobility. This paper propose the automatic display detection using Lambertian color segmentation combined with canny edge detection algorithms for CamCom in order to avoid manual region of interest selection to establish communication link between display and camera. The automatic display detection methods fails using conventional edge detection algorithms when content changes dynamically in displays. In order to solve this problem lambertian color segmentation combined with canny edge detection algorithms are proposed to detect display automatically. This research analysed different algorithms on display edge recognition and measured the performance on rendering dynamically changing content with color code on display. The display detection rate is achieved around 96% using this proposed solutions.