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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| PN | 2023-08-29 10:05 |
Hokkaido | (Primary: On-site, Secondary: Online) |
Optical fiber long-distance multi-repeater transmission experiment of phase-shifted symbol-preserving encrypted polarization-multiplexed QAM signals Reika Suketomo, Yuika Mori, Hodaka Amano, Keiji Shimada (Kagawa Univ.), Ryosuke Matsumoto (AIST), Takahiro Kodama (Kagawa Univ.)  PN2023-16 |
We have demonstrated that phase-shifted symbol-preserving encryption does not cause excessive degradation in 7 ch WDM 32... [more] | PN2023-16 pp.1-5 |
| RCS | 2023-06-15 16:00 |
Hokkaido | Hokkaido University, and online (Primary: On-site, Secondary: Online) |
Noise-Assisted Relaxation of Nonlinearity: A Basic Theoretical Study Kazuki Komatsu (Toyohashi Univ. of Tech.), Yuichi Miyaji (Aichi Inst. of Tech.), Hideyuki Uehara (Toyohashi Univ. of Tech.) RCS2023-60 |
In communication systems using one-bit quantizers, a phenomenon called dithering or stochastic resonance, which can supp... [more] | RCS2023-60 pp.188-193 |
| SP, IPSJ-SLP, IPSJ-MUS | 2021-06-18 13:00 |
Online | Online | F0 estimation of speech based on l2-norm regularized TV-CAR analysis Keiichi Funaki (Univ. of the Ryukyus) SP2021-2 |
Linear Prediction (LP) is the most successful speech analysis in speech processing, including speech coding implemented ... [more] |
SP2021-2 pp.7-12 |
| SIS | 2019-12-12 14:55 |
Okayama | Okayama University of Science | Machine learning algorithms with quantized images and their influence Takayuki Osakabe, Yuma Kinoshita, Hitoshi Kiya (Tokyo Metro.Univ.) SIS2019-27 |
Recently, appling quantized images to machine learning algorithms is expected to enhance robustness against adversarial... [more] |
SIS2019-27 pp.23-28 |
| PN | 2017-03-07 09:30 |
Okinawa | Ohama Nobumoto Memorial Hall (Okinawa) | Experimental connectivity test of all-optical analog to digital conversion and multilevel signal in all-optical fractional OFDM receiver Tomotaka Nagashima (Osaka Univ.), Gabriella Cincotti (Univ. Rome Tre), Takuya Murakawa (Osaka Univ.), Satoshi Shimizu (NICT), Makoto Hasegawa (Osaka Univ.), Kunihiro Hattori, Masayuki Okuno, Shinji Mino, Akira Himeno (NEL), Naoya Wada (NICT), Hiroyuki Uenohara (Tokyo Tech), Tsuyoshi Konishi (Osaka Univ.) PN2016-100 |
We experimentally verified a connectivity of all-optical analog to digital conversion and multilevel signal in all- opti... [more] | PN2016-100 pp.93-98 |
| CAS, CS | 2017-02-24 09:30 |
Shiga | Capacity of Collaborative Interference Canceller: Quantization Error and Spatial Correlation Daisuke Umehara, Rieko Saiki (Kyoto Inst. of Tech.), Hidekazu Murata (Kyoto Univ.), Satoshi Denno (Okayama Univ.) CAS2016-125 CS2016-86 |
Let us assume that space division multiplexing (SDM) signal is transmitted at a base station (BS) with a number of anten... [more] | CAS2016-125 CS2016-86 pp.63-68 |
|
| EMM | 2017-01-31 10:30 |
Miyagi | Tohoku University (Miyagi) | Parameter Memorization-Free Reversible Data Hiding for HDR Images Ryo Oishi, Masaaki Fujiyoshi, Hitoshi Kiya (Tokyo Metro. Univ.) EMM2016-82 |
This paper proposes a reversible data hiding (RDH) method for high dynamic range (HDR) images. In HDR images, in contras... [more] | EMM2016-82 pp.49-54 |
| QIT (2nd) |
2014-05-12 - 2014-05-13 |
Aichi | Nagoya Univ. | [Poster Presentation]
Introduction of nonlinear dynamics to a quantum system by feedback control Kiyotaka Nomizu, Akihisa Tomita, Atsushi Okamoto (Hokkaido Univ.) |
Conventional quantum Information processing have treated quantum systems as described by linear Schrödinger equation. Th... [more] | |
| IMQ | 2013-05-17 13:55 |
Tokyo | Seikei Univ. | Improvement of Gradation Performance for the HDR Image Quantization with less bits Takeshi Simizu, Naoya Sagara, Kenji Sugiyama (Seikei Univ.) IMQ2013-2 |
Usually, HDR (High Dynamic Range) image needs 16 bit for a pixel. It becomes very useful if 8 bit (1 byte) for a pixel i... [more] | IMQ2013-2 pp.7-12 |
| PN | 2012-08-30 14:30 |
Hokkaido | Kitami Institute of Technology | 6bit resolution performance of dual rail all-optical quantization Tomotaka Nagashima, Takema Satoh (Osaka Univ.), Aymeric Van De Walle (LCFIO), Kazuyoshi Itoh, Tsuyoshi Konishi (Osaka Univ.) PN2012-17 |
We verified the quantization error improvement effect of the proposed dual rail method in 6bit optical quantization usin... [more] | PN2012-17 pp.17-21 |
| CAS, CS, SIP | 2012-03-08 14:35 |
Niigata | The University of Niigata | Multidimensional Extension of Weighted Median Cut Quantization for Color Images Mika Sugiyama, Masaaki Fujiyoshi (Tokyo Metropolitan Univ.), Hiroyuki Kobayashi (Tokyo Metropolitan CIT), Hitoshi Kiya (Tokyo Metropolitan Univ.) CAS2011-116 SIP2011-136 CS2011-108 |
This paper firstly describes disadvantages of well-known color quantization methods, namely, median cut and vector quant... [more] | CAS2011-116 SIP2011-136 CS2011-108 pp.55-60 |
| CQ, MVE, IE (Joint) [detail] |
2011-03-08 11:15 |
Nagasaki | Yasuragi IOUJIMA | Mixed Resolution Distributed Video Coding Based on Selective Data Pruning Tuan Tai Phan, Yuichi Tanaka, Madoka Hasegawa, Shigeo Kato (Utsunomiya Univ.) IE2010-186 MVE2010-174 |
In current distributed video coding (DVC) issues, the huge computational complexity caused at the decoder has not been s... [more] | IE2010-186 MVE2010-174 pp.237-242 |
| ED | 2010-09-13 14:30 |
Fukuoka | Kyushu Institute of Technology(Wakamatsu) | THz sensing by GaAs-based nanowire FET and its enhancement utilizing stochastic resonance Seiya Kasai (Hokkaido Univ./JST), Kensuke Miura, Yuta Shiratori (Hokkaido Univ.) ED2010-125 |
THz signal sensing using GaAs nanowire FETs formed by lithography and chemical etching is described. THz photocurrent is... [more] | ED2010-125 pp.13-17 |
| NLP | 2007-12-20 13:00 |
Fukui | Nonlinear Quantization Analysis of Chaos produced by the (m+1) Order Mapping Functions and their Predictability I Jiguo Dong (uec), Takako Yamada (KG), Katsufusa Shono NLP2007-124 |
Internal state $x_t$ was calculated for $(m+1)$ order mapping function $x_{t+1}=\frac{(m+1)^{m+1}}{m^m}x_t(1-x_t)^m$, $0... [more] | NLP2007-124 pp.21-26 |
|
| CAS, NLP | 2007-10-19 09:20 |
Tokyo | Musashi Institute of Technology | Nonlinear Quantization Analysis of Chaos produced by the Third Order Mapping Functions and their Predictability Jiguo Dong (uec), Takako Yamada (KG), Katsufusa Shono CAS2007-53 NLP2007-81 |
Analysis of chaos, produced by 128 bit fixed point calculation for the third order mapping functions controlled by a par... [more] | CAS2007-53 NLP2007-81 pp.7-12 |
| NLP | 2007-08-07 14:10 |
Shizuoka | Nonlinear quantization Analysis of Chaos Generated from Mapping Functions Jiguo Dong (uec), Takako Yamada (KG), Katsufusa Shono NLP2007-59 |
Chaos were generated by calculating repeatedly mapping functions with fixed point calculation keeping 128 bit calculatio... [more] | NLP2007-59 pp.33-37 |
|
| NLP | 2007-06-09 14:00 |
Hiroshima | Chaos Generation in Fixed Point Calculations and Nonlinear Quantized Observations Jiguo Dong, Takako Yamada, Katsufusa Shono (UEC) NLP2007-32 |
When nonlinear one dimensional mapping was calculated in a digital computer,chaos haveing Lyapunov exponent $\lambda=\ln... [more] | NLP2007-32 pp.51-54 |
|
| IE | 2007-03-19 11:00 |
Aichi | Near-Lossless Coding of Still Images Using Block-Adaptive Prediction Kazuya Takahashi, Nau Ozaki, Ichiro Matsuda, Susumu Itoh (Tokyo Univ. of Science), Sei Naito, Atsushi Koike (KDDI R&D Labs.) |
This paper proposes a near-lossless coding scheme using block-adaptive prediction for still images. The scheme employs a... [more] | IE2006-278 pp.17-22 |
|
| NLP, CAS | 2006-10-05 12:05 |
Osaka | Sorter-based Sigma-Delta Domain Multi-level Operators - Part II Hisato Fujisaka, Takeshi Kamio, Kazuhisa Haeiwa (Hiroshima City Univ.) |
This paper presents a multi-level multipler and multi-level piecewise linear circuits for sigma-delta domain signal proc... [more] | CAS2006-41 NLP2006-64 pp.41-46 |
|
| NLP, CAS | 2004-09-14 13:55 |
Kyoto | Kyoto Univ. | Operators on Multi-Level Delta-Sigma Modulated Signals Kazutoshi Matsuyama, Hisato Fujisaka (Hiroshima City Univ.) |
This paper describes algorithms to process first-order four-level DeltaSigma modulated signals directly without converti... [more] | CAS2004-37 NLP2004-49 pp.55-60 |
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