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Hiroyuki Okuhata
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2020 – today
- 2021
- [c29]Shiho Hanashiro, Junfeng Xue, Junya Morioka, Ryusuke Miyamoto, Takuma Hamagami, Kentaro Yanagihara, Yasutaka Kawamoto, Hiroyuki Okuhata, Hiroyuki Yomo, Tomohito Takubo:
Testing Environment for Developing a Wireless Networking System based on Image-assisted Routing for Sports Applications. icSPORTS 2021: 138-143 - 2020
- [j7]Takuma Hamagami, Shinsuke Hara, Hiroyuki Yomo, Ryusuke Miyamoto, Yasutaka Kawamoto, Takunori Shimazaki, Hiroyuki Okuhata:
Performance Prediction of Wireless Vital Data Collection System for Exercisers by a Network Simulator. IEICE Trans. Commun. 103-B(6): 653-661 (2020) - [c28]Takuma Hamagami, Shinsuke Hara, Yasutaka Kawamoto, Hiroyuki Yomo, Ryusuke Miyamoto, Hiroyuki Okuhata:
Summary of Experimental Results on Accurate Wireless Sensing System for a Group of Exercisers Spread in an Outdoor Ground. ISMICT 2020: 1-4 - [c27]Shinsuke Hara, Takuma Hamagami, Yasutaka Kawamoto, Hiroyuki Yomo, Ryusuke Miyamoto, Hiroyuki Okuhata:
An Adaptive Superframe Change in a Wireless Vital Sensor Network for a Group of Outdoor Exercisers. VTC Fall 2020: 1-6
2010 – 2019
- 2019
- [j6]Dabwitso Kasauka, Kenta Sugiyama, Hiroshi Tsutsui, Hiroyuki Okuhata, Yoshikazu Miyanaga
:
An Architecture for Real-Time Retinex-Based Image Enhancement and Haze Removal and Its FPGA Implementation. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 102-A(6): 775-782 (2019) - [c26]Shinsuke Hara, Takunori Shimazaki, Takuma Hamagami, Yasutaka Kawamoto, Hiroyuki Yomo, Ryusuke Miyamoto, Hiroyuki Okuhata, Fumie Ono:
A Real-time Vital Data Collection System for a Group of Persons during a Variety of Sporting Activities in a Large Outdoor Ground. icSPORTS 2019: 138-145 - 2018
- [c25]Shinsuke Hara, Takuma Hamagami, Yasutaka Kawamoto, Hiroyuki Yomo, Ryusuke Miyamoto, Takunori Shimazaki, Hiroyuki Okuhata, Fumie Ono, Kenichi Takizawa:
AccuWiSe: Accurate Wireless Vital Sensing System for a Group of Exercisers - Hardware Configuration. CHASE 2018: 9-10 - [c24]Takuma Hamagami, Yasutaka Kawamoto, Shinsuke Hara, Hiroyuki Yomo, Ryusuke Miyamoto, Takunori Shimazaki, Hiroyuki Okuhata, Fumie Ono, Kenichi Takizawa:
AccuWiSe: Accurate Wireless Vital Sensing System for a Group of Exercisers - System Performance. CHASE 2018: 11-12 - [c23]Takuma Hamagami, Yasutaka Kawamoto, Shinsuke Hara, Hiroyuki Yomo, Ryusuke Miyamoto, Takunori Shimazaki, Hiroyuki Okuhata:
Wireless Multi-Hop Networking for a Group of Exercisers Spread in a Sports Ground. HealthCom 2018: 1-6 - 2017
- [j5]Shinsuke Hara, Hiroyuki Yomo, Ryusuke Miyamoto, Yasutaka Kawamoto, Hiroyuki Okuhata, Takashi Kawabata, Hajime Nakamura:
Challenges in Real-Time Vital Signs Monitoring for Persons During Exercises. Int. J. Wirel. Inf. Networks 24(2): 91-108 (2017) - [c22]Takunori Shimazaki, Masaya Kimoto, Shinsuke Hara, Hiroyuki Okuhata:
An energy-efficient task sharing in a wireless vital data collection system. ECCTD 2017: 1-4 - [c21]Shinsuke Hara, Takunori Shimazaki, Hiroyuki Okuhata, Hajime Nakamura, Takashi Kawabata, Kai Cai
Parameter optimization of motion artifact canceling PPG-based heart rate sensor by means of cross validation. ISMICT 2017: 73-76 - 2016
- [j4]Shinsuke Hara, Hiroyuki Okuhata, Takashi Kawabata, Hajime Nakamura, Hiroyuki Yomo:
Real-Time Vital Monitoring for Persons during Exercises - Solutions and Challenges -. IEICE Trans. Commun. 99-B(3): 556-564 (2016) - [c20]Dabwitso Kasauka, Hiroshi Tsutsui, Seijiro Imai, Takashi Imagawa, Hiroyuki Okuhata, Yoshikazu Miyanaga
Image smoothing in the spatial domain using multigrid conjugate gradient methods based on accelerated iterative shrinkage. APSIPA 2016: 1-5 - [c19]Shinsuke Hara, Takunori Shimazaki, Hiroyuki Okuhata, Isao Shirakawa, Hiroyuki Yomo:
A real-time vital sensing system for persons during exercises. ICCE-Berlin 2016: 20-23 - [c18]Seijiro Imai, Dabwitso Kasauka, Hiroshi Tsutsui
Processing time reduction of tone mapping based on iterative shrinkage smoothing using parallel processing. ISPACS 2016: 1-4 - 2015
- [c17]Dabwitso Kasauka, Hiroshi Tsutsui
Image smoothing using spatial iterative methods based on accelerated iterative shrinkage. APSIPA 2015: 779-783 - [c16]Takunori Shimazaki, Shinsuke Hara, Hiroyuki Okuhata, Hajime Nakamura, Takashi Kawabata:
Motion artifact cancellation and outlier rejection for clip-type ppg-based heart rate sensor. EMBC 2015: 2026-2029 - 2014
- [c15]Dabwitso Kasauka, Hiroshi Tsutsui
Computational cost analysis and implementation of accelerated iterative shrinkage smoothing. APSIPA 2014: 1-4 - [c14]Takunori Shimazaki, Shinsuke Hara, Hiroyuki Okuhata, Hajime Nakamura, Takashi Kawabata:
Cancellation of motion artifact induced by exercise for PPG-based heart rate sensing. EMBC 2014: 3216-3219 - [c13]Shinsuke Hara, Tetsuo Tsujioka, Takunori Shimazaki, Kouhei Tezuka, Masayuki Ichikawa, Masato Ariga, Hajime Nakamura, Takashi Kawabata, Kenji Watanabe, Masanao Ise, Noa Arime, Hiroyuki Okuhata:
Elements of a real-time vital signs monitoring system for players during a football game. Healthcom 2014: 460-465 - [c12]Hiroyuki Okuhata, Rintaro Imai, Masanao Ise, Roberto Yusi Omaki, Hajime Nakamura, Shinsuke Hara, Isao Shirakawa:
Implementation of dynamic-range enhancement and super-resolution algorithms for medical image processing. ICCE 2014: 181-184 - [c11]Shinsuke Hara, Kouhei Tezuka, Tetsuo Tsujioka, Hajime Nakamura, Takashi Kawabata, Kenji Watanabe, Masanao Ise, Noa Arime, Hiroyuki Okuhata:
Performance evaluation of packet forwarding methods in real-time vital data collection for players during a football game. ISMICT 2014: 1-5 - 2013
- [c10]Hiroyuki Okuhata, Hajime Nakamura, Shinsuke Hara, Hiroshi Tsutsui
Application of the real-time Retinex image enhancement for endoscopic images. EMBC 2013: 3407-3410 - [c9]Shinsuke Hara, Tetsuo Tsujioka, Toui Kanda, Hajime Nakamura, Takashi Kawabata, Kenji Watanabe, Masanao Ise, Noa Arime, Hiroyuki Okuhata:
Development of a real-time vital data collection system from players during a football game. Healthcom 2013: 409-413 - [c8]Hiroyuki Okuhata, Masanao Ise, Roberto Yusi Omaki, Isao Shirakawa:
Implementation of super-resolution scaler for Full HD and 4K video. ICCE-Berlin 2013: 1-5 - 2012
- [c7]Hiroshi Tsutsui, Satoshi Yoshikawa, Hiroyuki Okuhata, Takao Onoye:
Halo artifacts reduction method for variational based realtime retinex image enhancement. APSIPA 2012: 1-6
2000 – 2009
- 2005
- [j3]Atsushi Kosaka, Hiroyuki Okuhata, Takao Onoye, Isao Shirakawa:
Design of Ogg Vorbis Decoder System for Embedded Platform. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. 88-A(8): 2124-2130 (2005) - 2004
- [c6]Atsushi Kosaka, Satoshi Yamaguchi, Hiroyuki Okuhata, Takao Onoye, Isao Shirakawa:
SoC design of Ogg Vorbis decoder using embedded processor. Conf. Computing Frontiers 2004: 481-487
1990 – 1999
- 1998
- [c5]Takao Onoye, Gen Fujita, Hiroyuki Okuhata, Morgan Hirosuke Miki, Isao Shirakawa:
Low-Power Implementation of H.324 Audiovisual Codec Dedicated to Mobile Computing. ASP-DAC 1998: 589-594 - [c4]Gen Fujita, Hiroyuki Okuhata, Morgan Hirosuke Miki, Takao Onoye, Isao Shirakawa:
Implementation of H.324 audiovisual codec for mobile computing. CICC 1998: 193-196 - [c3]Hiroyuki Okuhata, Morgan Hirosuke Miki, Takao Onoye, Isao Shirakawa:
A low-power DSP core architecture for low bitrate speech codec. ICASSP 1998: 3121-3124 - 1997
- [j2]Hiroyuki Okuhata, Hiroshi Uno, Keiji Kumatani, Isao Shirakawa, Toru Chiba:
A Low Power Receiver Architecture for 4 Mbps Infrared Wireless Communication. J. Circuits Syst. Comput. 7(5): 483-494 (1997) - [j1]Hiroshi Uno, Keiji Kumatani, Hiroyuki Okuhata, Isao Shirakawa, Toru Chiba:
ASK digital demodulation scheme for noise immune infrared data communication. Wirel. Networks 3(2): 121-129 (1997) - [c2]Hiroshi Uno, Keiji Kumatani, Hiroyuki Okuhata, Isao Shirakawa, Toru Chiba:
Low power architecture for high speed infrared wireless communication system. ISLPED 1997: 255-258 - [c1]Yukihiro Yoshida, Bao-Yu Song, Hiroyuki Okuhata, Takao Onoye, Isao Shirakawa:
An object code compression approach to embedded processors. ISLPED 1997: 265-268
Coauthor Index
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