Hiroyuki Takahashi

Publication Activity (10 Years)

Years Active: 1989-2024
Publications (10 Years): 38

Top Topics

Signal Detection

Prognostic Factors

Top Venues

Publications

Takayuki Kobayashi, Shimpei Shimizu, Akira Kawai, Masanori Nakamura, Masashi Abe, Takushi Kazama, Takeshi Umeki, Munehiko Nagatani, Kosuke Kimura, Hitoshi Wakita, Yuta Shiratori, Fukutaro Hamaoka, Hiroshi Yamazaki, Hiroyuki Takahashi, Yutaka Miyamoto
C+L+U-Band 14.85-THz WDM Transmission Over 80-km-Span G.654.E Fiber with Hybrid PPLN-OPA/EDFA U-Band Lumped Repeater Using 144-Gbaud PCS-QAM Signals. OFC (2024)
Michel Pohl, Mitsuru Uesaka, Hiroyuki Takahashi, Kazuyuki Demachi, Ritu Bhusal Chhatkuli
Respiratory motion forecasting with online learning of recurrent neural networks for safety enhancement in externally guided radiotherapy. CoRR (2024)
Hitoshi Wakita, Munehiko Nagatani, Yoshihiro Ogiso, Masanori Nakamura, Fukutaro Hamaoka, Yuta Shiratori, Takayuki Kobayashi, Yutaka Miyamoto, Hiroyuki Takahashi
100-GHz-bandwidth InP-based On-board Coherent Tx Front-end enabling 2-Tb/s/λ Optical Transmission. OFC (2024)
Chun Wang, Hans Herdian, Wenbin Zheng, Chenxin Liu, Jill C. Mayeda, Yuxuan Liu, Olivia Angel Yong, Wenqian Wang, Yuncheng Zhang, Carrel da Gomez, Abanob Shehata, Sena Kato, Ibrahim Abdo, Teruo Jyo, Hiroshi Hamada, Hiroyuki Takahashi, Hiroyuki Sakai, Atsushi Shirane, Kenichi Okada
24.3 A 236-to-266GHz 4-Element Amplifier-Last Phased-Array Transmitter in 65nm CMOS. ISSCC (2024)
Masanori Nakamura, Munehiko Nagatani, Hiroshi Yamazaki, Teruo Jyo, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Hiroki Taniguchi, Shuto Yamamoto, Fukutaro Hamaoka, Takayuki Kobayashi, Hiroyuki Takahashi, Yutaka Miyamoto
AMUX-based Bandwidth Tripler with Time-interleaved Nonlinear Digital Pre-distortion Enabling 216-GBd PS-PAM8 Signal. OFC (2024)
Atsushi Mukai, Minato Kanda, Kenji Shimazoe, Fumihiko Ishida, Eiji Takada, Yusuke Tamura, Hanwool Woo, Hiroyuki Takahashi, Mizuki Uenomachi, Hajime Asama, Jun Kawarabayashi, Kosuke Tanabe, Ken'ichi Tsuchiya, Kei Kamada, Hideki Tomita
Development of Unmanned Remote System to Find Radiation Sources Based on 4π Gamma Imaging. J. Robotics Mechatronics 36 (1) (2024)
Wenke Karbole, Stefan B. Ploner, Jungeun Won, Anna Marmalidou, Hiroyuki Takahashi, Nadia K. Waheed, James G. Fujimoto, Andreas K. Maier
3D Deep Learning-based Boundary Regression of an Age-related Retinal Biomarker in High Resolution OCT. Bildverarbeitung für die Medizin (2024)
Marcel Reimann, Jungeun Won, Hiroyuki Takahashi, Antonio Yaghy, Yunchan Hwang, Stefan B. Ploner, Junhong Lin, Jessica Girgis, Kenneth Lam, Siyu Chen, Nadia K. Waheed, Andreas K. Maier, James G. Fujimoto
Unsupervised detection of Small Hyperreflective Features in Ultrahigh Resolution Optical Coherence Tomography. Bildverarbeitung für die Medizin (2023)
Marcel Reimann, Jungeun Won, Hiroyuki Takahashi, Antonio Yaghy, Yunchan Hwang, Stefan B. Ploner, Junhong Lin, Jessica Girgis, Kenneth Lam, Siyu Chen, Nadia K. Waheed, Andreas K. Maier, James G. Fujimoto
Unsupervised detection of small hyperreflective features in ultrahigh resolution optical coherence tomography. CoRR (2023)
Hitoshi Wakita, Teruo Jyo, Munehiko Nagatani, Hiroyuki Takahashi
Quad-Channel 100-GHz-Bandwidth InP- HBT-Based Linear Amplifier Module for High Symbol Rate Communications. BCICTS (2023)
Teruo Jyo, Munehiko Nagatani, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Hiroyuki Takahashi
A DC-to-150-GHz InP-DHBT Active Combiner Module for Ultra-Broadband Signal Generation. BCICTS (2023)
Masanori Nakamura, Hiroki Taniguchi, Shuto Yamamoto, Fukutaro Hamaoka, Munehiko Nagatani, Teruo Jyo, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Takayuki Kobayashi, Hiroyuki Takahashi, Yutaka Miyamoto
Beyond 200-GBd QAM Signal Detection Based on Trellis-path-limited Sequence Estimation Supporting Soft-decision Forward Error Correction. OFC (2023)
Daisuke Kitayama, Adam Pander, Hiroyuki Takahashi
Analysis of Asymmetry in Active Split-Ring Resonators to Design Circulating-Current Eigenmode: Demonstration of Beamsteering and Focal-Length Control toward Reconfigurable Intelligent Surface. Sensors 22 (2) (2022)
Hideki Tomita, Shintaro Hara, Atsushi Mukai, Keita Yamagishi, Hidetake Ebi, Kenji Shimazoe, Yusuke Tamura, Hanwool Woo, Hiroyuki Takahashi, Hajime Asama, Fumihiko Ishida, Eiji Takada, Jun Kawarabayashi, Kosuke Tanabe, Kei Kamada
Path-Planning System for Radioisotope Identification Devices Using 4π Gamma Imaging Based on Random Forest Analysis. Sensors 22 (12) (2022)
Teruo Jyo, Hiroshi Hamada, Munehiko Nagatani, Hitoshi Wakita, Ibrahim Abdo, Miwa Mutoh, Yuta Shiratori, Kenichi Okada, Atsushi Shirane, Hiroyuki Takahashi
A 220-294 GHz Power Amplifier with 10-dBm Psat and 2.2% PAE in 250-nm InP DHBT. BCICTS (2022)
Atsushi Mukai, Shintaro Hara, Keita Yamagishi, Ryohei Terabayashi, Kenji Shimazoe, Yusuke Tamura, Hanwool Woo, Takuya Kishimoto, Hiroki Kogami, Zhihong Zhong, Mizuki Uenomachi, Agus Nurrachman, Hiroyuki Takahashi, Hajime Asama, Fumihiko Ishida, Hidetake Ebi, Eiji Takada, Jun Kawarabayashi, Kosuke Tanabe, Kei Kamada, Hideki Tomita
Optimization of Detector Movement Algorithm Using Decision Trees Analysis for Radiation Source Identification Based on 4π Gamma Imaging. SII (2022)
Michel Pohl, Mitsuru Uesaka, Hiroyuki Takahashi, Kazuyuki Demachi, Ritu Bhusal Chhatkuli
Prediction of the position of external markers using a recurrent neural network trained with unbiased online recurrent optimization for safe lung cancer radiotherapy. Comput. Methods Programs Biomed. 222 (2022)
Sumire Aoki, Hiroshi Hamada, Hiroto Yamamoto, Atsushi Fukuda, Teruo Jyo, Hiroyuki Takahashi, Hiroshi Okazaki, Yasunori Suzuki
A Design of InP-HBT 100-GHz Diode Linearizer Toward 6G. APCC (2022)
Munehiko Nagatani, Hitoshi Wakita, Teruo Jyo, Tsutomu Takeya, Hiroshi Yamazaki, Yoshihiro Ogiso, Miwa Mutoh, Yuta Shiratori, Minoru Ida, Fukutaro Hamaoka, Masanori Nakamura, Takayuki Kobayashi, Hiroyuki Takahashi, Yutaka Miyamoto
110-GHz-Bandwidth InP-HBT AMUX/ADEMUX Circuits for Beyond-1-Tb/s/ch Digital Coherent Optical Transceivers. CICC (2022)
Mizuki Uenomachi, Kenji Shimazoe, Hiroyuki Takahashi
A double photon coincidence detection method for medical gamma-ray imaging. Bio Algorithms Med Syst. 18 (1) (2022)
Xiaodong Yue, Madhushanka Rukshani Liyanaarachchi, Kenji Shimazoe, Kenichiro Ogane, Hiroyuki Takahashi, Miwako Takahashi, Kazuaki Hara, Etsuko Kobayashi, Ichiro Sakuma
Design of a Flat Panel Detector for the PET-Laparoscope System Using Simulations. J. Medical Robotics Res. 7 (1) (2022)
Madhushanka R. Liyanaarachchi, Kenji Shimazoe, Hiroyuki Takahashi, Keiichi Nakagawa, Etsuko Kobayashi, Ichiro Sakuma
Development and evaluation of a prototype detector for an intraoperative laparoscopic coincidence imaging system with PET tracers. Int. J. Comput. Assist. Radiol. Surg. 16 (1) (2021)
Teruo Jyo, Munehiko Nagatani, Miwa Mutoh, Yuta Shiratori, Hitoshi Wakita, Hiroyuki Takahashi
An Over 130-GHz-Bandwidth InP-DHBT Baseband Amplifier Module. BCICTS (2021)
Michel Pohl, Mitsuru Uesaka, Hiroyuki Takahashi, Kazuyuki Demachi, Ritu Bhusal Chhatkuli
Prediction of the Position of External Markers Using a Recurrent Neural Network Trained With Unbiased Online Recurrent Optimization for Safe Lung Cancer Radiotherapy. CoRR (2021)
Junichi Fujikata, Masataka Noguchi, Seok-Hwan Jeong, Yosuke Onawa, Daisuke Shimura, Kazuki Kawashita, Riku Katamawari, Hideaki Okayama, Shigeki Takahashi, Hideki Ono, Hiroyuki Takahashi, Hiroki Yaegashi, Yasuhiko Ishikawa, Takahiro Nakamura
High-Speed and 16 λ-WDM Operation of Ge/Si Electro-Absorption Modulator for C-Band Spectral Regime. OFC (2020)
Hideki Tomita, Agus Nurrachman, Hiroyuki Takahashi, Hidetake Ebi, Fumihiko Ishida, Eiji Takada, Jun Kawarabayashi, Ken'ichi Tsuchiya, Tetsuo Iguchi, Atsushi Mukai, Kotaro Kanamori, Kenji Shimazoe, Hanwool Woo, Yusuke Tamura, Shintaro Hara, Ryohei Terabayashi, Mizuki Uenomachi
Gamma-ray Source Identification by a Vehicle-mounted 4π Compton Imager. SII (2020)
Yuri Yoshihara, Naoki Nakada, Yuki Mizumachi, Mizuki Uenomachi, Kenji Shimazoe, Hiroyuki Takahashi
Portable Compton Imaging System with Ce: GAGG Crystals and Dynamic Time-over-Threshold Method. SII (2019)
Hideaki Okayama, Yosuke Onawa, Hiroyuki Takahashi, Daisuke Shimura, Hiroki Yaegashi, Hironori Sasaki
Silicon waveguide polarization rotation Bragg grating using directional coupling. OECC/PSC (2019)
Hideki Ono, Hideaki Okayama, Yosuke Onawa, Isao Tamai, Hiroyuki Takahashi, Satoshi Miyamura, Tatsushi Hasegawa, Masanori Itoh, Daisuke Shimura, Hiroki Yaegashi, Hironori Sasaki
Receiver Characteristics of 4ch Transceiver Module with Si Photonics Integrated Chip Suitable for TWDM-PON ONU. OECC/PSC (2019)
Hideaki Okayama, Yosuke Onawa, Hiroyuki Takahashi, Daisuke Shimura, Hiroki Yaegashi, Hironori Sasaki
Silicon waveguide polarization beam splitter using reversed Δβ coupler structure. OECC/PSC (2019)
Hideki Ono, Junichi Fujikata, Masataka Noguchi, Hiroyuki Takahashi, Daisuke Shimura, Hiroki Yaegashi, Hasaki Sasaki
Si Photonics Butt-Coupled Waveguide Germanium Avalanche Photodiodes with Lateral SAM Structures. OFC (2019)
Peter Ström, Kimmo Kartasalo, Henrik Olsson, Leslie Solorzano, Brett Delahunt, Daniel M. Berney, David G. Bostwick, Andrew J. Evans, David J. Grignon, Peter A. Humphrey, Kenneth A. Iczkowski, James G. Kench, Glen Kristiansen, Theodorus H. van der Kwast, Katia R. M. Leite, Jesse K. McKenney, Jon Oxley, Chin-Chen Pan, Hemamali Samaratunga, John R. Srigley, Hiroyuki Takahashi, Toyonori Tsuzuki, Murali Varma, Ming Zhou, Johan Lindberg, Cecilia Bergström, Pekka Ruusuvuori, Carolina Wählby, Henrik Grönberg, Mattias Rantalainen, Lars Egevad, Martin Eklund
Pathologist-Level Grading of Prostate Biopsies with Artificial Intelligence. CoRR (2019)
Tsuyoshi Horikawa, Daisuke Shimura, Hiroyuki Takahashi, Jun Ushida, Yohei Sobu, Akemi Shiina, Masatoshi Tokushima, Seok-Hwan Jeong, Keizo Kinoshita, Tohru Mogami
Resonant Wavelength Variation Modelling for Microring Resonators based on Fabrication Deviation Analysis. ECOC (2017)
Qiang Yi, Stanley Y. P. Chien, Li Fu, Lingxi Li, Yaobin Chen, Rini Sherony, Hiroyuki Takahashi
Clothing color of surrogate Bicyclist for Pre-Collision System evaluation. Intelligent Vehicles Symposium (2017)
Masashi Ohno, Tomoya Irimatsugawa, Hiroyuki Takahashi, Chiko Otani, Takashi Yasumune, Koji Takasaki, Chikara Ito, Takashi Ohnishi, Shinichi Koyama, Shuichi Hatakeyama, R. M. Thushara Damayanthi
Superconducting Transition Edge Sensor for Gamma-Ray Spectroscopy. IEICE Trans. Electron. (3) (2017)
Naoki Nakada, Kenji Shimazoe, Hiroyuki Takahashi, Yoshiaki Shikaze
Directional Gamma-ray imaging for unmanned aerial monitoring system. SII (2017)
Kentaro Takagi, Yasumichi Yone, Hiroyuki Takahashi, Rei Sakai, Hajime Hojyo, Tatsuya Kamiura, Mutsumi Nomura, Naishen Liang, Tatsuya Fukazawa, Hisashi Miya, Toshiya Yoshida, Kaichiro Sasa, Yasumi Fujinuma, Takeshi Murayama, Hiroyuki Oguma
Forest biomass and volume estimation using airborne LiDAR in a cool-temperate forest of northern Hokkaido, Japan. Ecol. Informatics 26 (3) (2015)
Kazushi Maruya, Junji Watanabe, Hiroyuki Takahashi, Shoji Hashiba
A learning system utilizing learners' active tracing behaviors. LAK (2015)
Jun Takeuchi, Akihiko Hirata, Hiroyuki Takahashi, Naoya Kukutsu
A Finline Orthomode Transducer for 120-GHz-Band Wireless Links. IEICE Trans. Electron. (2) (2014)
Jun Takeuchi, Akihiko Hirata, Hiroyuki Takahashi, Naoya Kukutsu, Yoshiaki Yamada, Kei Kitamura, Mitsuhiro Teshima
10-Gbit/s Bidirectional and 20-Gbit/s Unidirectional 2-ch Wireless Data Transmission System Using 120-GHz-Band Finline Orthomode Transducers. IEICE Trans. Electron. (2) (2014)
Hiroyuki Takahashi, Toshihiko Kosugi, Akihiko Hirata, Jun Takeuchi, Koichi Murata, Naoya Kukutsu
120-GHz-Band Amplifier Module with Hermetic Sealing Structure for 10-Gbit/s Wireless System. IEICE Trans. Electron. (6) (2014)
Yutaka Urino, Nobuaki Hatori, Takeshi Akagawa, Takanori Shimizu, Makoto Okano, Masashige Ishizaka, Tsuyoshi Yamamoto, Hideaki Okayama, Yosuke Onawa, Hiroyuki Takahashi, Daisuke Shimura, Hiroki Yaegashi, Hidetaka Nishi, Hiroshi Fukuda, Koji Yamada, Makoto Miura, Junichi Fujikata, Suguru Akiyama, Takeshi Baba, Tatsuya Usuki, Yoshiji Noguchi, Masataka Noguchi, Masahiko Imai, Naoki Hirayama, Shigeru Saitou, Masashi Yamagishi, Masashi Takahashi, Emiko Saito, Daisuke Okamoto, Masahiko Mori, Tsuyoshi Horikawa, Takahiro Nakamura, Yasuhiko Arakawa
First demonstration of athermal silicon optical interposers with quantum dot lasers operating up to 125 °C. ECOC (2014)
Daisuke Okamoto, Yutaka Urino, Takeshi Akagawa, Suguru Akiyama, Takeshi Baba, Tatsuya Usuki, Makoto Miura, Junichi Fujikata, Takanori Shimizu, Makoto Okano, Nobuaki Hatori, Masashige Ishizaka, Tsuyoshi Yamamoto, Hiroyuki Takahashi, Yoshiji Noguchi, Masataka Noguchi, Masahiko Imai, Masashi Yamagishi, Shigeru Saitoh, Naoki Hirayama, Masashi Takahashi, Emiko Saito, Daisuke Shimura, Hideaki Okayama, Yosuke Onawa, Hiroki Yaegashi, Hidetaka Nishi, Hiroshi Fukuda, Koji Yamada, Masahiko Mori, Tsuyoshi Horikawa, Takahiro Nakamura, Yasuhiko Arakawa
Demonstration of 25-Gbps optical data links on silicon optical interposer using FPGA transceiver. ECOC (2014)
Takanori Shimizu, Makoto Okano, Hiroyuki Takahashi, Nobuaki Hatori, Masashige Ishizaka, Tsuyoshi Yamamoto, Masahiko Mori, Tsuyoshi Horikawa, Yutaka Urino, Takahiro Nakamura, Yasuhiko Arakawa
Demonstration of over 1000-channel hybrid integrated light source for ultra-high bandwidth interchip optical interconnection. OFC (2014)
Hiroyuki Takahashi, Akihiko Hirata, Katsuhiro Ajito, Shintaro Hisatake, Tadao Nagatsuma
10-Gbit/s close-proximity wireless system meeting the regulation for extremely low-power radio stations. IEICE Electron. Express 11 (3) (2014)
Kai Yang, Eliza Yingzi Du, Edward J. Delp, Pingge Jiang, Yaobin Chen, Rini Sherony, Hiroyuki Takahashi
A new approach of visual clutter analysis for pedestrian detection. ITSC (2013)
Azhar H. Malik, Kenji Shimazoe, Hiroyuki Takahashi
Measurement of radioactivity concentration in blood by using newly developed ToT LuAG-APD based small animal PET tomograph. EMBC (2013)
Kai Yang, Eliza Y. Du, Edward J. Delp, Pingge Jiang, Feng Jiang, Yaobin Chen, Rini Sherony, Hiroyuki Takahashi
An Extreme Learning Machine-based pedestrian detection method. Intelligent Vehicles Symposium (2013)
Toshihiko Kosugi, Hiroyuki Takahashi, Akihiko Hirata, Koichi Murata
Broadband InP MMICs for 120 GHz wireless data communications. RWS (2013)
Azhar H. Malik, Kenji Shimazoe, Hiroyuki Takahashi
EGS5 simulations to design a Ce: GAGG scintillator based Compton camera. EMBC (2013)
Hirofumi Aoki, Hiroyuki Takahashi, Satoshi Udaka, Toshinori Okita, Hiroyasu Ichida, Masami Aga
Human Centered Design of a Pre-collision System. HCI (22) (2013)
Jun Takeuchi, Akihiko Hirata, Hiroyuki Takahashi, Naoya Kukutsu
Evaluation of Interference between Parallel 120-GHz-Band Wireless Link Systems with High-Gain Cassegrain Antennas. IEICE Trans. Electron. (10) (2013)
Renran Tian, Eliza Yingzi Du, Kai Yang, Pingge Jiang, Feng Jiang, Yaobin Chen, Rini Sherony, Hiroyuki Takahashi
Pilot study on pedestrian step frequency in naturalistic driving environment. Intelligent Vehicles Symposium (2013)
Jun Takeuchi, Akihiko Hirata, Hiroyuki Takahashi, Naoya Kukutsu
10-Gbit/s Bi-directional wireless data transmission system using 120-GHz-band ortho-mode transducers. RWS (2012)
Tomotaka Wada, Hiroyuki Takahashi, Kouichi Mutsuura, Hiromi Okada
A Novel Fast Mobile IPv6 Handover Scheme Using Dual Bands in Road-to-Vehicle Communications. IEICE Trans. Fundam. Electron. Commun. Comput. Sci. (1) (2012)
Kai Yang, Eliza Yingzi Du, Pingge Jiang, Yaobin Chen, Rini Sherony, Hiroyuki Takahashi
Automatic categorization-based multi-stage pedestrian detection. ITSC (2012)
Hiroyuki Takahashi, Takashi Minohara
Enhancing location privacy in Mobile IPv6 by using redundant home agents. PerCom Workshops (2012)
Toshihiko Kosugi, Hiroki Sugiyama, Koichi Murata, Hiroyuki Takahashi, Akihiko Hirata, Naoya Kukutsu, Yuichi Kado, Takatomo Enoki
A 125-GHz 140-mW InGaAs/InP composite-channel HEMT MMIC power amplifier module. IEICE Electron. Express 6 (24) (2009)
Daiji Fukuda, Nobuyuki Zen, Masataka Ohkubo, Hiroyuki Takahashi, Kuniaki Amemiya, Mitiyuki Endo
Improvements in the AIST Cryogenic Radiometer With Superconducting Thermometer. IEEE Trans. Instrum. Meas. 56 (2) (2007)
Hiroshi Ito, Tomofumi Furuta, Toshihiko Kosugi, Akihiko Hirata, Hiroyuki Takahashi, Yoshifumi Muramoto, Masami Tokumitsu, Yasuhiro Sato, Tadao Nagatsuma, Tadao Ishibashi
Over-10-dBm output uni-traveling-carrier photodiode module integrating a power amplifier for wireless transmissions in the 125-GHz band. IEICE Electron. Express 2 (16) (2005)
Jung-Yeol Yeom, T. Ishitsu, Hiroyuki Takahashi
Development of a waveform sampling front-end ASIC for PET. ASP-DAC (2004)
N. Shaaban, S. Hasegawa, A. Suzuki, Hiroyuki Takahashi
The Use of Genetic Algorithms for the Improvement of Energy Characteristics of CdZnTe Semiconductor Detectors. Genet. Program. Evolvable Mach. 2 (3) (2001)
Koichi Takeda, Yoshiharu Aimoto, Noritsugu Nakamura, Hideo Toyoshima, Takahiro Iwasaki, Kenji Noda, Koujirou Matsui, Shinya Itoh, Sadaaki Masuoka, Tadahiko Horiuchi, Atsushi Nakagawa, Kenju Shimogawa, Hiroyuki Takahashi
A 16-Mb 400-MHz loadless CMOS four-transistor SRAM macro. IEEE J. Solid State Circuits 35 (11) (2000)
Masataka Nakahira, Hiroyuki Takahashi, Kentaro Akou, Koichi Koizumi
Development of Thick Wall Welding and Cutting Tools for ITER. J. Robotics Mechatronics 10 (2) (1998)
Atsushi Kutami, Yoshikazu Maruya, Hiroyuki Takahashi, Akihiro Okuno
Visual navigation of autonomous on-road vehicle. IROS (1990)
Hiroyuki Takahashi, Tomofumi Morita, Yoshikazu Maruya, Akihiro Okuno
Obstacle Avoidance of a Mobile Robot with Multiple Sensors. IROS (1989)