Visiting Scholars

Visiting Scholar, 2015-2016 Masao Sambongi received the B.S., M.S., and Ph.D. degrees in physics from Keio University in 1997, information processing from Tokyo Institute of Technology in 1999 and 2003, respectively. He joined Olympus Corporation in 2003 and has been engaged in research on imaging technology. His research interests include image processing, computational photography and computer graphics.

Visiting Scholar, 2014-2015 Hosup Choi received the B.S., M.S., and Ph.D. degrees from the School of Materials Science and Engineering, Seoul National University, Seoul, Korea, in 1999,2001, and 2006, respectively. He joined TV Development Center, LCD Division, Samsung Electronics 2006, where he led several TV development projects such as 55" FHD 120Hz. Since 2012, he has been a TV development project leader at Samsung Display. Recently, he has been involved in the development of he 65" UHD 120Hz curved TV. He is interested in picture quality enhancement algorithms and new pixel architectures for TV.

Visiting Scholar, 2013-2014 Jumpei Koyama is a visiting scholar of the Stanford Center for Image Systems Engineering (SCIEN) at Stanford University. He works with Prof. Girod for image-based retrieval. He received the B.E., M.E. and Ph.D. degrees from The University of Tokyo in 2003, 2005 and 2008 respectively. He joined FUJITSU LABORATORIES LTD. in 2008 and has been engaged in research on video coding technologies. His research interests include video coding, neural networks and machine learning.

Visiting Scholar, 2013-2014 Il-Koo Kim received the B.S., M.S., and Ph.D. degrees from the School of Electrical Engineering, Seoul National University, Seoul, Korea, in 1999,2001, and 2006, respectively. He has been with the Digital Media and Communications Research and Development Center, Samsung Electronics, Suwon, Korea, since 2006, where he has been engaged in development of high-efficiency video coding. Since 2010, he has been an active contributor to the Joint Collaborative Team on Video Coding for High Ef?ciency Video Coding standardization. His main research interests include video compression and processing.

Visiting Scholar, 2013-2014 Munenori Fukunishi is a researcher on image processing algorithm at Olympus Corporation, Japan. He received B.S. and M.S. degree in mechanical engineering from Waseda University in 1999 and Tokyo Institute of Technology in 2001 respectively. After having professional research career at Hitachi Ltd. and Keyence Corp., he joined Olympus Corporation in 2007. He has been engaged in research on image processing algorithm for consumer camera application. From 2013 to 2014, he is a visiting scholar at Stanford University, and works with Prof. Brian A Wandell on image quality evaluation and color filter array study.

Visiting Scholar, 2010-2011 Yusuke Oike received the B.S., M.S., and Ph.D. degrees in electronic engineering from the University of Tokyo, Japan in 2000, 2002 and 2005, respectively. In 2005, he joined Sony Corporation, Japan, where he has been engaged in research and development of architectures, circuits and devices for CMOS image sensors. From 2010 to 2011, he is a visiting scholar at Stanford University, and works with Prof. Abbas El Gamal for hardware implementation of compressed sensing. His research interests include architecture and mixed-signal circuit design for image sensors and image processing. He is a member of the IEEE and the ITE of Japan. Since 2011, he is a member of the technical program committee of the International Solid-State Circuits Conference (ISSCC).

Visiting Scholar, 2008-2009 Youngdae Kim received the B.E. and M.E. degrees from Department of Electrical and Electronics Engineering, the Dongguk University in 1992 and 1999 respectively. In 1992, he joined Semiconductor division of Samsung Electronics Corporation, Korea where he has been engaged in CCD(Charge Coupled Device) Process development including Test. He has also been involved in the various development projects such as CPU, Printer, Modem, AP(Application Processor) etc. from 1999 to 2007. He is currently developing the advanced new pixel(APS) design and the various product of CIS.

Visiting Scholar, 2007-2008 Keiichi Chono was born in Ehime, Japan, in 1976. He received the B.E. and M.E. degrees in electronics engineering from the Kyushu University, Fukuoka, Japan, in 1999 and 2001, respectively. In 2001, he joined the Signal Processing Laboratories, NEC Corporation, Japan. Since then he has been engaged in research and development of video data compression techniques, particularly for digital broadcasting. He is now with Common Software Platform Research Laboratories of NEC. His research interests are in visual signal processing and compression. He is a member of the IEICE of Japan and the IEEE.

Visiting Scholar, 2007-2008 Kasuo Sugimoto received the B.E. and M.E. degrees from Department of Electrical Engineering, The University of Tokyo in 1994 and 1998 respectively. From 1995 to 1997, he served as a missionary of The Church of Jesus Christ of Latter-Day Saints in Nagoya Mission, Japan. In 1998 he joined Mitubishi Electric Corporation where he has been engaged in research on video compression, video processing and watermarking. He has also been involved in various development projects such as MPEG codec F/W on DSP, MPEG codec LSI and video watermarking FPGA. From 2002 to 2004 he was a visiting researcher at Multimedia laboratories in NTT DoCoMo Corporation. He is currently a head researcher at Source Coding Team of Information Technology R&D Center, Mitsubishi Electric Corporation.

Visiting Scholar, 2006-2007 Takayuki Nakachi is currently a visiting scholar at Stanford Center for Image Systems Engineering (SCIEN) at Stanford University. He works with Prof. Bernd Girod in the area of image/video coding. His current research interests include scalable video coding, range image coding and distributed source coding. He received a Ph.D. degree in electrical engineering from Keio University in 1997. Since he joined NTT Laboratories in 1997, He has been engaged in research on Super High Definition (SHD) image coding, especially in the area of lossless and near-lossless coding. For recent years, he has been researching scalable image/video coding in order to distribute the SHD image contents.

Visiting Scholar, 2005-2006 Hiroshi Shimamoto received M.S. degree in electrical engineering from Tokyo Institute of Technology in 1991. He joined NHK (Japan Broadcasting Corporation) in 1991. Since 1993, he has been engaged in research and development on high resolution and high frame rate television camera systems, such as 60-fps progressive-scan 3-CCD HDTV color camera, high dynamic range image system, 8k x 4k ultra-high definition cameras, and high-quality single-chip HDTV camera using 8M-pixel sensor, at NHK Science and Technical Research Laboratories.

Visiting Scholar, 2005-2006 Seishi Takamura received the B.E., M.E. and Ph.D. degrees from Department of Electronic Engineering, Faculty of Engineering, The University of Tokyo in 1991, 1993 and 1996 respectively. In 1996 he joined Nippon Telegraph and Telephone (NTT) Corporation, Japan, where he has been engaged in research on efficient video coding and ultra-high quality video coding (e.g, high frame rate video, multi-spectral video and super-high definition). He is currently a senior research engineer at Video Coding Group of NTT Cyber Space Laboratories. From 2005 to 2006 he had been a Visiting Scientist at Stanford University, California. He has been academically awarded 10 times including IPSJ Nagao Special Researcher Award in 2006. Dr. Takamura is a member of IPSJ, IIEEJ and ITE and a senior member of IEEE.

Visiting Scholar, 2006-2007 Jianhua Zheng received the B.S. degree in communication engineering from Northwestern Polytechnical University (NWPU), China, in 1997, the M.S. degree and Ph.D. degree in signal and information processing both from NWPU in 2001 and 2005, respectively. Since 2005, he joined Huawei Technologies Co., Ltd.,China, and engaged in video coding standard research. He is currently the head of image coding group in Advanced Research Department of HiSilicon. His research interests include video coding and processing, multimedia transmission, content-based image and video retrieval, as well as video semantic analysis. He is an active participant for Audio Video Coding Standard (AVS) and has over 20 proposals for AVS/MPEG/JVT, as well as about 15 journal papers and conference papers, and he holds three patents. From 2005 to 2006, he works with Prof. Yun He for visiting research at Image and Communication Lab., Tsinghua University, and engaged in AVS standard. He is currently a visiting scholar at Stanford Center for Image Systems Engineering (SCIEN), Stanford University, and works with Prof. Bernd Girod for networked video coding and wireless video delivery.