Ryohei Funatsu

Publication Activity (10 Years)

Years Active: 2007-2020
Publications (10 Years): 11

Top Topics

Gamut Mapping Algorithms

Top Venues

Publications

Kodai Kikuchi, Ryohei Funatsu, Toshio Yasue, Kohei Tomioka, Tomoki Matsubara, Takayuki Yamashita
Multi-Plane Phase Detection Autofocus for 8K Three-Chip Color Imaging Cameras. GCCE (2020)
Kohei Tomioka, Toshio Yasue, Ryohei Funatsu, Kodai Kikuchi, Tomoki Matsubara, Takayuki Yamashita, Shoji Kawahito
Noise Reduction Effect of Folding-integration ADC in an 8K Image Sensor driven at Various Frame Rates. IEEE SENSORS (2020)
Kohei Tomioka, Toshio Yasue, Ryohei Funatsu, Tomoki Matsubara, Tomohiko Kosugi, Sung-Wook Jun, Takashi Watanabe, Masanori Nagase, Toshiaki Kitajima, Satoshi Aoyama, Shoji Kawahito
Noise suppression effect of folding-integration applied to a column-parallel 3-stage pipeline ADC in a 2.1 μm 33-megapixel CMOS image sensor. IMSE (2019)
Takahiro Yamasaki, Tomohiro Nakamura, Ryohei Funatsu, Hiroshi Shimamoto
Hybrid autofocus system by using a combination of the sensor-based phase-difference detection and focus-aid signal. ICCE (2018)
Toshio Yasue, Kohei Tomioka, Ryohei Funatsu, Tomohiro Nakamura, Takahiro Yamasaki, Hiroshi Shimamoto, Tomohiko Kosugi, Sung-Wook Jun, Takashi Watanabe, Masanori Nagase, Toshiaki Kitajima, Satoshi Aoyama, Shoji Kawahito
A 33Mpixel CMOS imager with multi-functional 3-stage pipeline ADC for 480fps high-speed mode and 120fps low-noise mode. ISSCC (2018)
Ryohei Funatsu, Takeshi Kajiyama, Tomoki Matsubara, Hiroshi Shimamoto
Experimental prototype of SD memory card recordable 8K/60P camcorder. ICCE (2018)
Ryohei Funatsu, Kazuya Kitamura, Toshio Yasue, Daiichi Koide, Hiroshi Shimamoto
Development and Image Quality Evaluation of 8K High Dynamic Range Cameras with Hybrid Log-Gamma. IQSP (2017)
Jun Arai, Eisuke Nakasu, Takayuki Yamashita, Hitoshi Hiura, Masato Miura, Tomohiro Nakamura, Ryohei Funatsu
Progress Overview of Capturing Method for Integral 3-D Imaging Displays. Proc. IEEE 105 (5) (2017)
Tomohiro Nakamura, Takahiro Yamasaki, Ryohei Funatsu, Hiroshi Shimamoto
A full-resolution 8K single-chip portable camera system. IMSE (2017)
Ryohei Funatsu, Hiroyasu Masuda, Shinichiro Nakamura, Takayuki Yamashita, Hiroshi Shimamoto
High-visibility focus-aid signal for ultra-high-definition television cameras using maximum value filter with sparse noise reduction. BMSB (2016)
Tomohiro Nakamura, Ryohei Funatsu, Takahiro Yamasaki, Kazuya Kitamura, Hiroshi Shimamoto
Development of an 8K full-resolution single-chip color image acquisition system. IMSE (2016)
Ryohei Funatsu, Steven Huang, Takayuki Yamashita, Kevin Stevulak, Jeff Rysinski, David Estrada, Shi Yan, Takuji Soeno, Tomohiro Nakamura, Tetsuya Hayashida, Hiroshi Shimamoto, Barmak Mansoorian
6.2 133Mpixel 60fps CMOS image sensor with 32-column shared high-speed column-parallel SAR ADCs. ISSCC (2015)
Satohiro Tajima, Ryohei Funatsu, Yukihiro Nishida
Chromatic interpolation based on anisotropy-scale-mixture statistics. Signal Process. 97 (2014)
Takuji Soeno, Kohei Omura, Takayuki Yamashita, Ryohei Funatsu, Masayuki Sugawara, Makoto Okui
A 33M-pixel wide color gamut image capturing system using four CMOS image sensors at 120 Hz. Sensors, Cameras, and Systems for Industrial and Scientific Applications (2013)
Ryohei Funatsu, Takayuki Yamashita, Kohji Mitani, Yuji Nojiri
Single-chip color imaging for UHDTV camera with a 33M-pixel CMOS image sensor. Sensors, Cameras, and Systems for Industrial, Scientific, and Consumer Applications (2011)
Hiroshi Shimamoto, Takayuki Yamashita, Ryohei Funatsu, Kohji Mitani, Yuji Nojiri
Characteristics of experimental single-chip color HDTV image acquisition system with 8M-pixel image sensor. Digital Photography (2007)