Ryohei Funatsu

According to our database, Ryohei Funatsu authored at least 16 papers between 2007 and 2020.

Collaborative distances:

• Dijkstra number of five.
• Erdős number of five.

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

Proceedings of the 2020 IEEE Sensors, Rotterdam, The Netherlands, October 25-28, 2020, 2020

Multi-Plane Phase Detection Autofocus for 8K Three-Chip Color Imaging Cameras.

Kodai Kikuchi, Ryohei Funatsu, Toshio Yasue, Kohei Tomioka, Tomoki Matsubara, Takayuki Yamashita

Proceedings of the 9th IEEE Global Conference on Consumer Electronics, 2020

2019

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, Masanori Nagase, Toshiaki Kitajima, Satoshi Aoyama, Shoji Kawahito

Proceedings of the Image Sensors and Imaging Systems 2019, 2019

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, Masanori Nagase, Toshiaki Kitajima, Satoshi Aoyama, Shoji Kawahito

Proceedings of the 2018 IEEE International Solid-State Circuits Conference, 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

Proceedings of the IEEE International Conference on Consumer Electronics, 2018

Experimental prototype of SD memory card recordable 8K/60P camcorder.

Ryohei Funatsu, Takeshi Kajiyama, Tomoki Matsubara, Hiroshi Shimamoto

Proceedings of the IEEE International Conference on Consumer Electronics, 2018

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

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

Proceedings of the Image Quality and System Performance XIV, Electronic Imaging 2017, 2017

A full-resolution 8K single-chip portable camera system.

Tomohiro Nakamura, Takahiro Yamasaki, Ryohei Funatsu, Hiroshi Shimamoto

Proceedings of the Image Sensors and Imaging Systems 2017, 2017

2016

Development of an 8K full-resolution single-chip color image acquisition system.

Tomohiro Nakamura, Ryohei Funatsu, Takahiro Yamasaki, Kazuya Kitamura, Hiroshi Shimamoto

Proceedings of the Image Sensors and Imaging Systems 2016, 2016

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

Proceedings of the IEEE International Symposium on Broadband Multimedia Systems and Broadcasting, 2016

2015

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

Proceedings of the 2015 IEEE International Solid-State Circuits Conference, 2015

2014

Chromatic interpolation based on anisotropy-scale-mixture statistics.

Satohiro Tajima, Ryohei Funatsu, Yukihiro Nishida

Signal Process., 2014

2013

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

Proceedings of the Sensors, 2013

2011

Single-chip color imaging for UHDTV camera with a 33M-pixel CMOS image sensor.

Ryohei Funatsu, Takayuki Yamashita, Kohji Mitani, Yuji Nojiri

Proceedings of the Sensors, 2011

2007

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

Proceedings of the Digital Photography III, San Jose, CA, USA, January 29-30, 2007, 2007