| Presentation | 2012-03-09 Mobile Position Detection inside Tunnels by Visible Light Communication and Photogrammetry with TOF Image Sensor Yu HEMMI, Hideaki UCHIYAMA, Takao KAKEHASHI, Naoki NAGAMOTO, Shinichiro HARUYAMA, Tomoaki OHTSUKI, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | It is important for management organizations that maintain tunnels to find out their aging, such as cracks in a wall, accurately and easily. To identify the decrepit point, firstly, they take pictures of the wall continuously driving in the tunnel. After discovering the intended point from pictures, they need to identify the shooting location of the pictures. However, a global positioning system (GPS), which is a common position detection system, does not work with a high degree of accuracy inside tunnels, and as of now, the effective means to identify shooting points has not been developed. The visible light communication (VLC) by which we communicate using light from light-emitting diode (LED) is attracting attention. With the VLC technology, we can receive information from a number of lights at the same time by using an LED light as a transmitter and an image sensor as a receiver, respectively. In this report, we first realize the detection of light sources from shot pictures by employing the time-of-flight (TOF) image sensor, which calculates the distance from a target by determining TOF of light, as a receiver of VLC. Then, utilizing that capability, we propose a detection system of the shooting location by the photogrammetry technique. Finally, by doing experiments and evaluations, we demonstrate the effectiveness as the mobile position detecting system inside tunnels. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | VLC / LED / Photogrammetry / TOF / Image Sensor |
| Paper # | RCS2011-364 |
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| Committee | RCS |
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| Conference Date | 2012/2/29(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Radio Communication Systems (RCS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Mobile Position Detection inside Tunnels by Visible Light Communication and Photogrammetry with TOF Image Sensor |
| Sub Title (in English) | |
| Keyword(1) | VLC |
| Keyword(2) | LED |
| Keyword(3) | Photogrammetry |
| Keyword(4) | TOF |
| Keyword(5) | Image Sensor |
| 1st Author's Name | Yu HEMMI |
| 1st Author's Affiliation | Graduate School of Science and Technology, Keio University() |
| 2nd Author's Name | Hideaki UCHIYAMA |
| 2nd Author's Affiliation | INRIA |
| 3rd Author's Name | Takao KAKEHASHI |
| 3rd Author's Affiliation | Sumitomo Mitsui Construction Co., Ltd. |
| 4th Author's Name | Naoki NAGAMOTO |
| 4th Author's Affiliation | Sumitomo Mitsui Construction Co., Ltd. |
| 5th Author's Name | Shinichiro HARUYAMA |
| 5th Author's Affiliation | Graduate School of System Design and Management, Keio University |
| 6th Author's Name | Tomoaki OHTSUKI |
| 6th Author's Affiliation | Graduate School of Science and Technology, Keio University |
| Date | 2012-03-09 |
| Paper # | RCS2011-364 |
| Volume (vol) | vol.111 |
| Number (no) | 451 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |