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Dive into the research topics where Junichi Takagi is active.

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Featured researches published by Junichi Takagi.


ieee intelligent transportation systems | 1997

An image processing method to detect road surface condition using optical spatial frequency

Hiroshi Fukui; Junichi Takagi; Yoshiro Murata; Masashi Takeuchi

A road surface recognition method at fixed positions on the road is presented, with which a light source and a CCD camera are employed. The method has a certain optical configuration and two factors: road gloss and spatial frequency spectra of the road surface. Experimental results show that the road surface conditions that were expected to be discriminated in cold districts were recognized. Therefore, the method should be very useful for a traffic information system.


Archive | 2001

Surface light source, method for manufacturing the same and apparatus using it

Masayuki Shinohara; Junichi Takagi; Shigeru Aoyama


Optical Review | 1995

Optical Spatial Filter Sensor for Ground Speed

Yasunobu Sakai; Tetsuya Uno; Junichi Takagi; Tsukasa Yamashita


Archive | 2000

SURFACE LIGHT SOURCE AND METHOD OF FABRICATING IT

Shigeru Aoyama; Masayuki Shinohara; Junichi Takagi; 正幸 篠原; 茂 青山; 潤一 高木


Archive | 1950

Automatic door locking device

潤一 ▲高▼木; Takeshi Ishida; Yasumasa Sakai; Junichi Takagi; Tetsuya Uno; 徹也 宇野; 毅 石田; 泰誠 酒井


Archive | 1994

Road surface discriminator and apparatus applying same

Tetsuya Uno; Takeshi Ishida; Junichi Takagi; Yasunobu Sakai


Archive | 2001

Surface light source and manufacturing method for the same and apparatus using the same device

Masayuki Shinohara; Junichi Takagi


Archive | 1995

Sensor for detecting raindrops, wiper drive apparatus using the device, and vehicle using them

Hiroshi Fukui; Yasunobu Sakai; Junichi Takagi


Archive | 1998

Copper alloy foil current collector for secondary battery

Tatsuo Eguchi; Junichi Takagi; 達夫 江口; 潤一 高木


Jsae Review | 1995

Road Surface Recognition Method Using Optical Spatial Filter

Tetsuya Uno; Yasunobu Sakai; Junichi Takagi; Tsukasa Yamashita

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