K
Kentaro Akiyama
Publications - 8
Citations - 164
Kentaro Akiyama is an academic researcher. The author has contributed to research in topics: Image sensor & Shutter. The author has an hindex of 5, co-authored 8 publications receiving 111 citations.
Papers
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Journal ArticleDOI
3.2-MP Back-Illuminated Polarization Image Sensor With Four-Directional Air-Gap Wire Grid and 2.5- $\mu$ m Pixels
Yasushi Maruyama,Takashi Terada,Tomohiro Yamazaki,Yusuke Uesaka,Motoaki Nakamura,Yoshihisa Matoba,Kenta Komori,Yoshiyuki Ohba,Shinichi Arakawa,Yasutaka Hirasawa,Kondo Yuhi,Jun Murayama,Kentaro Akiyama,Yusuke Oike,Shuzo Sato,Takayuki Ezaki +15 more
TL;DR: In this paper, a 3.2-MP four-directional polarization image sensor with air-gap wire-grid polarizer is described, which is suitable for various megapixel fusion-imaging applications, such as reducing surface reflections, highly accurate depth mapping, and condition robust surveillance.
Proceedings ArticleDOI
An 8.3M-pixel 480fps global-shutter CMOS image sensor with gain-adaptive column ADCs and 2-on-1 stacked device structure
Yusuke Oike,Kentaro Akiyama,Luong D. Hung,Wataru Niitsuma,Akihiko Kato,Mamoru Sato,Yuri Kato,Wataru Nakamura,Hiroshi Shiroshita,Yorito Sakano,Yoshiaki Kitano,Takuya Nakamura,Takayuki Toyama,Hayato Iwamoto,Takayuki Ezaki +14 more
TL;DR: A 4K2K 480 fps global-shutter CMOS image sensor has been developed with super 35 mm format and employs newly developed gain-adaptive column ADCs to attain a dark random noise of 140 μVrms for the full-scale readout of 923 mV.
Journal ArticleDOI
8.3 M-Pixel 480-fps Global-Shutter CMOS Image Sensor with Gain-Adaptive Column ADCs and Chip-on-Chip Stacked Integration
Yusuke Oike,Kentaro Akiyama,Luong D. Hung,Wataru Niitsuma,Akihiko Kato,Mamoru Sato,Yuri Kato,Wataru Nakamura,Hiroshi Shiroshita,Yorito Sakano,Yoshiaki Kitano,Takuya Nakamura,Takayuki Toyama,Hayato Iwamoto,Takayuki Ezaki +14 more
TL;DR: This paper presents a 4K2K 480-fps global-shutter CMOS image sensor with a super 35-mm format for a highly realistic digital video system and employs newly developed gain-adaptive column analog-to-digital converters.
Proceedings ArticleDOI
Four-directional pixel-wise polarization CMOS image sensor using air-gap wire grid on 2.5-μm back-illuminated pixels
Tomohiro Yamazaki,Yasushi Maruyama,Yusuke Uesaka,Motoaki Nakamura,Yoshihisa Matoba,Takashi Terada,Kenta Komori,Yoshiyuki Ohba,Shinichi Arakawa,Yasutaka Hirasawa,Kondo Yuhi,Jun Murayama,Kentaro Akiyama,Yusuke Oike,Shuzo Sato,Takayuki Ezaki +15 more
TL;DR: In this article, a four-directional pixel-wise polarization CMOS image sensor using an air-gap wire grid on 2.5-μm back-illuminated pixels is presented.
Proceedings ArticleDOI
224-ke Saturation signal global shutter CMOS image sensor with in-pixel pinned storage and lateral overflow integration capacitor
Yorito Sakano,Shin Sakai,Yoshiaki Tashiro,Yuri Kato,Kentaro Akiyama,Katsumi Honda,Mamoru Sato,Masaki Sakakibara,Tadayuki Taura,Kenji Azami,Tomoyuki Hirano,Yusuke Oike,Yasunori Sogo,Takayuki Ezaki,Tadakuni Narabu,Teruo Hirayama,Shigetoshi Sugawa +16 more
TL;DR: In this article, a 3.875-μm pixel single exposure global shutter CMOS image sensor with an in-pixel pinned storage (PST) and a lateral-overflow integration capacitor (LOFIC) was presented.