2018 Fiscal Year Final Research Report
Integrated system of visible light communication and fast vehicle ahead recognition by high-speed stereo camera and visible light ID
| Project/Area Number |
16H04364
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Communication/Network engineering
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| Research Institution | Nagoya University |
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Principal Investigator |
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| Research Collaborator |
Kinoshita Masayuki
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| Project Period (FY) |
2016-04-01 – 2019-03-31
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| Keywords | 可視光通信 / 高速認識 / 高速二眼カメラ / 高速認識・通信統合システム |
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| Outline of Final Research Achievements |
The purpose of this research is to realize an integrated visible light communication (VLC) system that not only perform communication but also achieve range estimation.
The system adopts two high-speed cameras and analyzes a spatial-temporal image and a spatial-temporal cross image. Based on the analysis, we enable diversity reception for image-sensor based VLC. As a result, maximal ratio combining is also valid for image-sensor based VLC, and the system achieves a precious range estimation using sub-pixel estimation.
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| Free Research Field |
通信・ネットワーク
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| Academic Significance and Societal Importance of the Research Achievements |
本研究の成果は，可視光通信によるインフラ協調型安全運転支援システムに適用できる．とりわけ，本研究で明らかにしたサブピクセル単位での距離推定手法では，60m の距離で数10cm以下の測距特性を実現でき，有効性が高い．また，それに必要な演算処理も少なく，実用的である．なお，イメージセンタ可視光通信を対象に検討してきたが，LED信号機が点滅していることを考えると，測距については，十分適応可能であり，今後，その評価を行いたい．
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