Characteristics of experimental single-chip color HDTV image acquisition system with 8M-pixel image sensor. - Hiroshi Shimamoto; Takayuki Yamashita; Ryohei Funatsu; Kohji Mitani; Yuji Nojiri (Digital Photography, 2007)

Single-chip color imaging for UHDTV camera with a 33M-pixel CMOS image sensor. - Ryohei Funatsu; Takayuki Yamashita; Kohji Mitani; Yuji Nojiri (Sensors, Cameras, and Systems for Industrial, Scientific, and Consumer Applications, 2011)

A 33M-pixel wide color gamut image capturing system using four CMOS image sensors at 120 Hz. - Takuji Soeno; Kohei Omura; Takayuki Yamashita; Ryohei Funatsu; Masayuki Sugawara; Makoto Okui (Sensors, Cameras, and Systems for Industrial and Scientific Applications, 2013)

Chromatic interpolation based on anisotropy-scale-mixture statistics. - Satohiro Tajima; Ryohei Funatsu; Yukihiro Nishida (Signal Process., 2014)

6.2 133Mpixel 60fps CMOS image sensor with 32-column shared high-speed column-parallel SAR ADCs. - Ryohei Funatsu; Steven Huang; Takayuki Yamashita; Kevin Stevulak; Jeff Rysinski; David Estrada; Shi Yan; Takuji Soeno; Tomohiro Nakamura; Tetsuya Hayashida; Hiroshi Shimamoto; Barmak Mansoorian (ISSCC, 2015)

High-visibility focus-aid signal for ultra-high-definition television cameras using maximum value filter with sparse noise reduction. - Ryohei Funatsu; Hiroyasu Masuda; Shinichiro Nakamura; Takayuki Yamashita; Hiroshi Shimamoto (BMSB, 2016)

Development of an 8K full-resolution single-chip color image acquisition system. - Tomohiro Nakamura; Ryohei Funatsu; Takahiro Yamasaki; Kazuya Kitamura; Hiroshi Shimamoto (IMSE, 2016)

A full-resolution 8K single-chip portable camera system. - Tomohiro Nakamura; Takahiro Yamasaki; Ryohei Funatsu; Hiroshi Shimamoto (IMSE, 2017)

Development and Image Quality Evaluation of 8K High Dynamic Range Cameras with Hybrid Log-Gamma. - Ryohei Funatsu; Kazuya Kitamura; Toshio Yasue; Daiichi Koide; Hiroshi Shimamoto (IQSP, 2017)

Progress Overview of Capturing Method for Integral 3-D Imaging Displays. - Jun Arai; Eisuke Nakasu; Takayuki Yamashita; Hitoshi Hiura; Masato Miura; Tomohiro Nakamura; Ryohei Funatsu (Proc. IEEE, 2017)

Experimental prototype of SD memory card recordable 8K/60P camcorder. - Ryohei Funatsu; Takeshi Kajiyama; Tomoki Matsubara; Hiroshi Shimamoto (ICCE, 2018)

Hybrid autofocus system by using a combination of the sensor-based phase-difference detection and focus-aid signal. - Takahiro Yamasaki; Tomohiro Nakamura; Ryohei Funatsu; Hiroshi Shimamoto (ICCE, 2018)

A 33Mpixel CMOS imager with multi-functional 3-stage pipeline ADC for 480fps high-speed mode and 120fps low-noise mode. - Toshio Yasue; Kohei Tomioka; Ryohei Funatsu; Tomohiro Nakamura; Takahiro Yamasaki; Hiroshi Shimamoto; Tomohiko Kosugi; Sung-Wook Jun; Takashi Watanabe 003; Masanori Nagase; Toshiaki Kitajima; Satoshi Aoyama; et al. (ISSCC, 2018)

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. - Kohei Tomioka; Toshio Yasue; Ryohei Funatsu; Tomoki Matsubara; Tomohiko Kosugi; Sung-Wook Jun; Takashi Watanabe 003; Masanori Nagase; Toshiaki Kitajima; Satoshi Aoyama; Shoji Kawahito (IMSE, 2019)

Multi-Plane Phase Detection Autofocus for 8K Three-Chip Color Imaging Cameras. - Kodai Kikuchi; Ryohei Funatsu; Toshio Yasue; Kohei Tomioka; Tomoki Matsubara; Takayuki Yamashita (GCCE, 2020)

Noise Reduction Effect of Folding-integration ADC in an 8K Image Sensor driven at Various Frame Rates. - Kohei Tomioka; Toshio Yasue; Ryohei Funatsu; Kodai Kikuchi; Tomoki Matsubara; Takayuki Yamashita; Shoji Kawahito (IEEE SENSORS, 2020)