K
Keiichiro Kagawa
Researcher at Shizuoka University
Publications - 281
Citations - 3262
Keiichiro Kagawa is an academic researcher from Shizuoka University. The author has contributed to research in topics: Image sensor & Pixel. The author has an hindex of 25, co-authored 267 publications receiving 2892 citations. Previous affiliations of Keiichiro Kagawa include Osaka University & Nara Institute of Science and Technology.
Papers
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Journal ArticleDOI
Image-sensor-based visible light communication for automotive applications
Takaya Yamazato,Isamu Takai,Hiraku Okada,Toshiaki Fujii,Tomohiro Yendo,Shintaro Arai,Michinori Andoh,Tomohisa Harada,Keita Yasutomi,Keiichiro Kagawa,Shoji Kawahito +10 more
TL;DR: Characteristics unique to image-sensor-based VLC as compared to radio wave technology are identified to improve automotive safety and demonstrate its effectiveness through a V2V communication field trial.
Journal ArticleDOI
Optical Vehicle-to-Vehicle Communication System Using LED Transmitter and Camera Receiver
TL;DR: An optical vehicle-to-vehicle (V2V) communication system based on an optical wireless communication technology using an LED transmitter and a camera receiver which employs a special CMOS image sensor, i.e, an optical communication image sensor (OCI).
Journal ArticleDOI
LED and CMOS Image Sensor Based Optical Wireless Communication System for Automotive Applications
TL;DR: This paper describes the design, fabrication, and capabilities of the OCI, as well as the development of the LED and image sensor based OWC system, which boasts a 20-Mb/s/pixel data rate without LED detection and a 15-M b/s-class data rate with a 16.6-ms real-time LED detection.
Journal ArticleDOI
Irregular Lens Arrangement Design to Improve Imaging Performance of Compound-Eye Imaging Systems
TL;DR: An efficient design method for improving the imaging performance is presented and results, including the peak signal-to-noise ratio of the super-resolved images, confirm the effectiveness of the proposed method.
Patent
Information-processing system using free-space optical communication and free-space optical communication system
TL;DR: In this article, a mobile phone is used to detect the pilot signal of each communication node and eliminate influences of any other light source that apparently resembles the pilot signals, and then, determining the position of each node and setting a limited range for reading the pixels around that position, the mobile phone 1 reads the detection signals of the pixels within the limited range at high speed.