Zobrazeno 1 - 10
of 22
pro vyhledávání: '"Tomoki Matsubara"'
Autor:
Kohei Tomioka, Kodai Kikuchi, Tomoki Matsubara, Takayuki Yamashita, Shoji Kawahito, Toshio Yasue, Ryohei Funatsu
Publikováno v:
IEEE Transactions on Electron Devices. 68:2326-2334
This article describes an improvement in the noise reduction performance of a column correlated multiple sampling (CMS) readout circuit using interleaved pixel source follower for high-resolution and high-framerate CMOS image sensors (CISs). In this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3f545870119f28f021204e7d732de06e
https://doi.org/10.1109/ted.2021.3069177
https://doi.org/10.1109/ted.2021.3069177
Publikováno v:
SMPTE Motion Imaging Journal. 129:25-34
We develop UHD-2/8K cameras capable of high-speed recording at 120 frames/sec or more to support the highest video format of ultrahigh definition television and for shooting slow-motion video. Previously, we developed a 1.25-in. 3-CMOS UHD-2/8K 240-f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c2283f08e147a1bf8428842f2bd1ef96
https://doi.org/10.5594/jmi.2020.2991917
https://doi.org/10.5594/jmi.2020.2991917
Autor:
Toshio Yasue, Ryohei Funatsu, Kodai Kikuchi, Shoji Kawahito, Takayuki Yamashita, Tomoki Matsubara, Kohei Tomioka
Publikováno v:
2020 IEEE SENSORS.
This paper describes the noise reduction effect of a folding-integration (FI) ADC applied to an 8K image sensor. To maximize the sampling number in correlated multiple sampling (CMS), we implement duplicated pixel source followers, which are operated
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f793d78b50c7ce9bd47cd1001fbf0c60
https://doi.org/10.1109/sensors47125.2020.9278849
https://doi.org/10.1109/sensors47125.2020.9278849
Autor:
Toshio Yasue, Ryohei Funatsu, Kohei Tomioka, Kodai Kikuchi, Takayuki Yamashita, Tomoki Matsubara
Publikováno v:
GCCE
A phase detection (PD) autofocus (AF) method for three-chip color imaging cameras is proposed. The method detects the focus state of a lens by calculating the disparity between a half-shielded PD pixel and other normal pixels corresponding to the sam
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::db7be0fb19b25dea837952eda95b1290
https://doi.org/10.1109/gcce50665.2020.9291985
https://doi.org/10.1109/gcce50665.2020.9291985
Autor:
Toshio Yasue, Tomoki Matsubara, Kohei Tomioka, Ryohei Funatsu, Kodai Kikuchi, Takayuki Yamashita
Publikováno v:
Ultra-High-Definition Imaging Systems III.
Focusing difficulty has become a critical issue in 8K ultra-high definition television (UHDTV) production. Especially in 8K high-speed shooting, defocus blur significantly degrades a user's experience of slow-motion playback video. For this reason, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d247bb93cd328e5687a8e0005bd58582
https://doi.org/10.1117/12.2545672
https://doi.org/10.1117/12.2545672
Autor:
Toshio Yasue, Kodai Kikuchi, Ryohei Funatsu, Kohei Tomioka, Yuichi Kusakabe, Kazuya Kitamura, Tomoki Matsubara
Publikováno v:
Applications of Digital Image Processing XLII.
This study proposes a flicker reduction method for 120 fps shooting under 100 Hz light fluctuation. In 120 fps videos, a 100 Hz light fluctuation causes a 20 Hz flicker, which is an aliasing artifact induced by its sampling frequency. In this method,
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f8cc63decc1ca265268bde945a9d3d1b
https://doi.org/10.1117/12.2527961
https://doi.org/10.1117/12.2527961
Publikováno v:
ICCE
We have developed an experimental prototype of 8K camcorder that can record a compressed 8K/60p video signal on four SDHC/SDXC memory cards. This prototype system is composed of camera and recorder units. The camera unit acquires an 8K/60p video sign
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::66d59dc287c8410f51f6444e508a91cb
https://doi.org/10.1109/icce.2018.8326186
https://doi.org/10.1109/icce.2018.8326186
Autor:
Toshiaki Kitajima, Kohei Tomioka, Tomohiko Kosugi, Toshio Yasue, Tomoki Matsubara, Ryohei Funatsu, Masanori Nagase, Sung-Wook Jun, Satoshi Aoyama, Shoji Kawahito, Takashi Watanabe
Publikováno v:
Electronic Imaging. 31:367-1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a637a8061542e351ce10f749dde3b562
https://doi.org/10.2352/issn.2470-1173.2019.9.imse-367
https://doi.org/10.2352/issn.2470-1173.2019.9.imse-367
Autor:
Kohei Tomioka, Toshio Yasue, Ryohei Funatsu, Kodai Kikuchi, Kazuya Kitamura, Yuichi Kusakabe, Tomoki Matsubara
Publikováno v:
Proceedings of SPIE; 7/19/2019, Vol. 11137, p1-10, 10p
Autor:
Wei Zhao, Kenji Kikuchi, Misao Kubota, Kenkichi Tanioka, Yuji Ohkawa, Alla Reznik, Kazunori Miyakawa, Oleksandr Bubon, John A. Rowlands, Giovanni DeCrescenzo, Tomoki Matsubara
Publikováno v:
Current Applied Physics. 12:983-988
Although avalanche amorphous selenium (a-Se) is a very promising photoconductor for a variety of imaging applications, it is currently restricted to applications with electron beam readout in vacuum pick-up tube called a High-gain Avalanche Rushing P
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9b29af303a597a0094ca973973726eaa
https://doi.org/10.1016/j.cap.2011.12.023
https://doi.org/10.1016/j.cap.2011.12.023