| Authors |
T. Masuda, T. Yendo, T. Yamazato, H. Okada, M. P. Tehrani, T. Fujii, M. Tanimoto |
| Title |
Hierarchical Encoding System for Road-to-Vehicle Communication Using LED Traffic Light |
| Authority |
Workshop on Picture Coding and Image Processing, PCSJ2010/IMPS2010 |
| Summary |
This paper discusses the visible light road-to-vehicle communication system at intersection as one of ITS (Intelligent Transport System) technique. The communication between a vehicle and an LED traffic light is approached using an LED traffic light as a transmitter, and on-vehicle high-speed camera as a receiver. In this system, it is able to send data by blinking the LEDs of the traffic light in two dimensional patterns, and able to receive them by high-speed camera with image processing.[1]
Here, we aim to conduct long-distance high-speed visible light communication. When the distance between transmitter and receiver is far, the image of the LED traffic light captured by on-vehicle high-speed camera is very small. So, if the data are put on two dimension patterns without modification, data would be mistaken, because the two dimension patterns can’t be realized correctly. To solve this problem, data are encoded hierarchically before they are lighted by the LED traffic light. This is called as hierarchical encoding that the data are assigned with each spatial frequency. |
| 年月 |
2010年12月 |
| DOI/Handle |
|
| 開催場所 |
Nagoya, Japan |
| 研究テーマ |
可視光通信／光無線通信
高度交通システム（ＩＴＳ）
|
| 言語 |
英語 |
| 原稿/プレゼン資料 |
 / 無し (ローカル限定) |
