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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| RCS, SIP, IT | 2025-01-30 13:35 |
Yamaguchi | Kaikyou-messe (Yamaguchi, Online) (Primary: On-site, Secondary: Online) |
Approximate MCP regularization function using PN-junction diode for analog compressed sensing Soma Furusawa (Kyoto Univ.), Taisei Kato (Osaka Univ.), Ryo Hayakawa (TUAT), Kazunori Hayashi (Kyoto Univ.) |
(To be available after the conference date) [more] | |
| SIP | 2024-08-26 12:50 |
Fukui | University of Fukui (Bunkyo Campus) (Fukui, Online) (Primary: On-site, Secondary: Online) |
Image Restoration Using Accelerated Subgradient Method with Learned Convex Regularizers Kosuke Sugimura (Osaka Univ.), Ryo Hayakawa (TUAT), Yoji Iiguni (Osaka Univ.)  SIP2024-44 |
Image restoration is the estimation of an unknown image from its degraded measurement. One approach for the image rest... [more] |
SIP2024-44 pp.1-6 |
| SIP | 2024-08-26 13:10 |
Fukui | University of Fukui (Bunkyo Campus) (Fukui, Online) (Primary: On-site, Secondary: Online) |
A Study on Image Restoration Algorithms Suitable for Implementation in Optical Analog Circuits Taisei Kato (OU), Ryo Hayakawa (TUAT), Soma Furusawa, Kazunori Hayashi (KU), Youji Iiguni (OU) SIP2024-45 |
Conventional electronic circuits rely on electrons as information carriers, whereas optical analog circuits currently un... [more] | SIP2024-45 pp.7-12 |
| SIP | 2024-08-27 13:35 |
Fukui | University of Fukui (Bunkyo Campus) (Fukui, Online) (Primary: On-site, Secondary: Online) |
Binarization of structural parameters in structure learning of compressed sensing algorithms Tomoya Imai, Koshi Nagahisa (Osaka Univ), Ryo Hayakawa (TUAT), Youji Iiguni (Osaka Univ) SIP2024-58 |
Compressed sensing is a mathematical framework to solve underdetermined linear inverse problems by assuming the sparsity... [more] | SIP2024-58 pp.63-68 |
| SIP | 2024-08-27 15:30 |
Fukui | University of Fukui (Bunkyo Campus) (Fukui, Online) (Primary: On-site, Secondary: Online) |
Constrained Discrete-Valued Vector Reconstruction for Signal Recovery from Modulo Sampling Haruka Kobayashi (Osaka Univ.), Ryo Hayakawa (TUAT), Youji Iiguni (Osaka Univ.) SIP2024-62 |
[more] | SIP2024-62 pp.83-88 |
| SIP | 2024-08-27 15:50 |
Fukui | University of Fukui (Bunkyo Campus) (Fukui, Online) (Primary: On-site, Secondary: Online) |
Approximate Soft-Thresholding Function using V-I Characteristics of PN-junction Diode for Analog Compressed Sensing Soma Furusawa (Kyoto Univ.), Taisei Kato (Osaka Univ.), Ryo Hayakawa (Tokyo Univ. of Agriculture and Tech.), Kazunori Hayashi (Kyoto Univ.) SIP2024-63 |
To realize analog compressed sensing, we consider the implementation of the proximal operator of the $ ell_1$-norm calle... [more] | SIP2024-63 pp.89-94 |
| SIP, SP, EA, IPSJ-SLP [detail] | 2024-02-29 15:25 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Evaluation of the validity of CNN-based image quality assessment Ririko Harada (Osaka Univ.), Ryo Hayakawa (TUAT), Youji Iiguni (Osaka Univ.) |
[more] | |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-02-28 14:40 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Design of a regularization of blind deblurring for blurred images containing saturated pixels and Gaussian noise Tomoya Kobayashi, Ryo Hayakawa, Youji Iiguni (Osaka Univ.) |
[more] | |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-02-28 14:45 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Application of Deep Unfolding to Video Reconstruction Algorithms from Compressed Images Takashi Matsuda, Ryo Hayakawa, Youji Iiguni (Osaka Univ.) |
[more] | |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-02-28 14:50 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
Consideration of misalignment in multi-focus image fusion using convolutional sparse representation Ryo Tamaki, Ryo Hayakawa, Youji Iiguni (Osaka Univ.) |
[more] | |
| SP, IPSJ-SLP, EA, SIP [detail] | 2023-02-28 15:00 |
Okinawa | (Okinawa, Online) (Primary: On-site, Secondary: Online) |
A Study on Regularization in Video Super-Resolution Based on LMS Algorithm Ryogo Shimizu, Ryo Hayakawa, Youji Iiguni (Osaka Univ.) |
[more] | |
| IT, RCS, SIP | 2023-01-24 13:45 |
Gunma | Maebashi Terrsa (Gunma, Online) (Primary: On-site, Secondary: Online) |
[Invited Talk]
Integration of Optimization-Based Signal Recovery and Machine Learning Techniques Ryo Hayakawa (Osaka Univ.) IT2022-41 SIP2022-92 RCS2022-220 |
[more] | IT2022-41 SIP2022-92 RCS2022-220 pp.66-71 |
| CAS, SIP, VLD, MSS | 2022-06-16 15:30 |
Aomori | Hachinohe Institute of Technology (Aomori, Online) (Primary: On-site, Secondary: Online) |
Trajectory Classification Based on Correlation Coefficient Comparison for Background Subtraction with Moving Cameras Ryosuke Isono (Tokyo Tech.), Ryo Hayakawa, Youji Iiguni (Osaka Univ.) CAS2022-9 VLD2022-9 SIP2022-40 MSS2022-9 |
[more] | CAS2022-9 VLD2022-9 SIP2022-40 MSS2022-9 pp.46-51 |
| SIP | 2021-08-24 13:25 |
Online | Online (Online) | [Invited Talk]
Performance Analysis of Convex Optimization Problem for Linear Inverse Problems and Its Applications Ryo Hayakawa (Osaka Univ.) SIP2021-35 |
[more] | SIP2021-35 pp.30-35 |
| ITS, WBS, RCC | 2020-12-14 09:30 |
Online | Online (Online) | An Overloaded MU-MIMO OFDM/SC-CP Signal Detection Method using Non-Convex Sparse Regularizers and Group Sparsity Ayano Nakai-Kasai (Kyoto Univ.), Atsuya Hirayama, Hiroki Honda, Tetsuya Sasaki, Hideki Yasukawa (Osaka City Univ.), Ryo Hayakawa (Osaka Univ.), Kazunori Hayashi (Kyoto Univ.) WBS2020-8 ITS2020-4 RCC2020-11 |
This paper proposes low-latency signal detection methods for overloaded MU-MIMO (Multi-User Multi-Input Multi-Output) OF... [more] | WBS2020-8 ITS2020-4 RCC2020-11 pp.1-6 |
| RCS | 2020-06-26 13:00 |
Online | Online (Online) | [Invited Talk]
Overloaded signal processing using discreteness and sparsity for wireless communications Kazunori Hayashi (Kyoto Univ.), Ryo Hayakawa (Osaka Univ.), Ayano Nakai-Kasai (Kyoto Univ.) RCS2020-46 |
[more] | RCS2020-46 pp.139-144 |
| RCC, ITS, WBS | 2019-11-06 11:00 |
Nara | Nara Institute of Science and Technology (Nara) | [Poster Presentation]
Nonconvex Optimization Based Algorithm for Discrete-Valued Vector Reconstruction Ryo Hayakawa (Kyoto Univ.), Kazunori Hayashi (Osaka City Univ.) WBS2019-24 ITS2019-15 RCC2019-55 |
[more] | WBS2019-24 ITS2019-15 RCC2019-55 pp.11-16 |
| RCS, SR, SRW (Joint) |
2019-03-08 09:00 |
Kanagawa | YRP (Kanagawa) | [Invited Lecture]
Discreteness-aware overloaded signal processing Kazunori Hayashi (Osaka City Univ.), Ryo Hayakawa, Ayano Nakai-Kasai (Kyoto Univ.) RCS2018-320 |
[more] | RCS2018-320 pp.197-202 |
| RCC | 2019-01-25 13:30 |
Tokyo | Central Research Institute of Electric Power Industry (Otemachi) (Tokyo) | Uplink Overloaded MU-MIMO SC-CP Signal Detection Methods using Convex Optimization Ayano Nakai-Kasai, Ryo Hayakawa (Kyoto Univ.), Kazunori Hayashi (Osaka City Univ.) RCC2018-107 |
[more] | RCC2018-107 pp.1-5 |
| WBS, ITS, RCC | 2018-12-06 13:00 |
Okinawa | Miyako Island Hirara Port Terminal Bldg. (Okinawa) | [Poster Presentation]
Sum of Complex Sparse Regularizers Optimization for Complex Discrete-Valued Vector Reconstruction Ryo Hayakawa (Kyoto Univ.), Kazunori Hayashi (Osaka City Univ.) WBS2018-46 ITS2018-29 RCC2018-77 |
[more] | WBS2018-46 ITS2018-29 RCC2018-77 pp.103-108 |
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