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All Technical Committee Conferences (Searched in: All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| SP | 2008-10-23 17:30 |
Kumamoto | Kumamoto Univ. | An MRHSMM-based voice quality control technique for synthetic speech using speaker adaptation from average voice model Makoto Tachibana, Akifumi Kouno, Takashi Nose, Takao Kobayashi (Tokyo Tech)  SP2008-63 |
This paper describes a technique for controlling voice quality of synthetic speech using multiple-regression hidden semi... [more] | SP2008-63 pp.41-46 |
| IEE-CMN, ITE-ME, CQ, LOIS, IE | 2008-09-25 14:05 |
Kagawa | General Trainning Center at Shikoku Electric Power Co.,inc | Proposal of audio quality estimation model for IPTV Noritsugu Egi, Takanori Hayashi (NTT) CQ2008-31 OIS2008-34 IE2008-56 |
To providing high quality IPTV service for users, in-service quality management based on Quality of Experience (QoE) is ... [more] | CQ2008-31 OIS2008-34 IE2008-56 pp.27-32 |
| IEE-CMN, ITE-ME, CQ, LOIS, IE | 2008-09-25 15:10 |
Kagawa | General Trainning Center at Shikoku Electric Power Co.,inc | EstimationMmodel for Multimedia Quality Taking into Account Audio and Video Quality Interaction Toshinori Monden, Nobuhiko Kitawaki, Takeshi Yamada (Tsukuba Univ.) CQ2008-33 OIS2008-36 IE2008-58 |
In recent years, the opportunity to enjoy multimedia services with various screen size from mobile terminal screen to PC... [more] | CQ2008-33 OIS2008-36 IE2008-58 pp.39-44 |
| MoNA, IPSJ-MBL | 2008-05-22 14:05 |
Okinawa | Okinawa-seinen-kaikan | A Study on Communication Quality Estimation Using Multiple Packet Size Probing in CDMA2000 1xEV-DO System Takayuki Goto, Atsushi Tagami, Teruyuki Hasegawa, Shigehiro Ano (KDDI R&D Labs.) |
Recently, it is becoming important to grasp and improve the communication quality in a cellular data service as the ma... [more] |
MoMuC2008-11 pp.63-68 |
| CS, CQ (Joint) |
2008-04-25 09:30 |
Aomori | Hirosaki University | In-service video quality estimation model for mobile video streaming Kazuhisa Yamagishi, Takanori Hayashi (NTT Service Integration Laboratories) CQ2008-6 |
Non-intrusive parametric packet-layer model is required to monitor the quality of experience (QoE) during service. In Vo... [more] | CQ2008-6 pp.29-34 |
| SP | 2008-03-20 15:15 |
Tokyo | Univ. Tokyo | [Poster Presentation]
Robust noise suppression algorithm using the only Kalman filter theory for white and colored noises Nari Tanabe (Tokyo Univ. of Science, Suwa), Toshihiro Furukawa (Tokyo Univ. of Science), Shigeo Tsujii (Inst. of Information Security) SP2007-195 |
This paper presents a noise suppression algorithm using only the Kalman filter theory with canonical state space models:... [more] | SP2007-195 pp.51-56 |
| CQ, LOIS, IE, IEE-CMN, ITE-ME | 2007-09-28 09:50 |
Tokushima | The university of Tokushima | QoE estimation method for interconnected VoIP networks employing different codecs Noritsugu Egi, Atsuko Kurashima, Akira Takahashi (NTT) CQ2007-65 OIS2007-55 IE2007-62 |
In mobile networks, the speech codecs use higher compression rates than those in fixed networks because the radio resour... [more] | CQ2007-65 OIS2007-55 IE2007-62 pp.159-164 |
| CQ | 2007-07-13 15:00 |
Hokkaido | Shiretoko Prince Hotel Kazenamiki | Video Quality Estimation Model for IPTV Services Kazuhisa Yamagishi, Takanori Hayashi (NTT) CQ2007-35 |
Advances in broadband IP networks and codecs have enabled video streaming services over IP network (IPTV). In order to p... [more] | CQ2007-35 pp.123-126 |
| EA, SIP | 2007-05-24 15:40 |
Osaka | Osaka Univ. | Estimation of the Number of Poles in a Signal Generation Model of Audio Signals and its Application to Pitch Control Naoki Koshikawa, Takahiro Murakami, Toshihisa Tanaka (TUAT) EA2007-14 SIP2007-18 |
An algorithm for estimating the number of poles used in linear predictive coding (LPC) is presented. LPC is commonly us... [more] |
EA2007-14 SIP2007-18 pp.43-47 |
| CQ | 2006-07-14 09:10 |
Hokkaido | Future University-Hakodate | Perceived Quality Estimation Models of Multiparty Audiovisual Communication Services Takaaki Kurita (NTT) CQ2006-27 |
With the development of broadband networks, multiparty audiovisual communication services are beginning to be provided. ... [more] | CQ2006-27 pp.55-60 |
| CQ | 2006-07-14 09:35 |
Hokkaido | Future University-Hakodate | A Proposal of Video Quality Opinion Model for Audiovisual Communication Services Kazuhisa Yamagishi, Takanori Hayashi (NTT) CQ2006-28 |
Advances in broadband IP networks and codecs have enabled audiovisual communication services such as videophones, instan... [more] | CQ2006-28 pp.61-65 |
| IE | 2006-05-19 15:55 |
Kyoto | Kyoto Institute of Technology | A Study on Reduction of Inter-frame Quality Fluctuation in Hierarchical B Picutres Kazuya Hayase, Yukihiro Bandoh, Kazuto Kamikura, Yoshiyuki Yashima (NTT) |
The video coding using hierarchical B pictures achieves the better coding efficiency, but causes the inter-frame quality... [more] | IE2006-17 pp.31-36 |
| CS, CQ (Joint) |
2006-04-17 14:15 |
Akita | Akita Univ. | A study on quality estimation model for noise reduction systems Noritsugu Egi, Hitoshi Aoki, Akira Takahashi (NTT) CQ2006-4 |
In speech communication at a loud ambient noise environment, users listen to human speech added to noises. Therefore the... [more] | CQ2006-4 pp.13-17 |
| CQ, IE, LOIS, IEE-CMN, ITE-ME | 2005-09-16 13:40 |
Kochi | Kochi Univ. of Technoloty | Non-intrusive Quality Management for Video Communication Services by using Invalid Frame Rate Masataka Masuda, Toshiko Tominaga, Takanori Hayashi (NTT) |
With the increasing demand for IP telephony services using VoIP chnology, techniques for monitoring the quality of real-... [more] | CQ2005-59 OIS2005-44 IE2005-52 pp.55-60 |
| CQ, IE, LOIS, IEE-CMN, ITE-ME | 2005-09-16 14:00 |
Kochi | Kochi Univ. of Technoloty | Video Quality Estimation Model based on Displaysize and Resolution for Audiovisual Communication Services Kazuhisa Yamagishi, Takanori Hayashi (NTT) |
With the advances in broadband IP technology, audiovisual communication services have become popular as promising rich m... [more] | CQ2005-60 OIS2005-45 IE2005-53 pp.61-64 |
| CQ, IE, LOIS, IEE-CMN, ITE-ME | 2005-09-16 14:20 |
Kochi | Kochi Univ. of Technoloty | Multimodal quality evaluation model considering conversational factors Takanori Hayashi, Kazuhisa Yamagishi (NTT) |
With the bandwidth of access lines to the Internet becoming broader, various multimedia services are being developed and... [more] | CQ2005-61 OIS2005-46 IE2005-54 pp.65-69 |
| CQ | 2005-07-14 14:15 |
Hokkaido | Wakkanai Hokusei Gakuen College | Framework of conversational quality estimation for IP telephony services
-- Toward more accurate quality estimation for quality planning and management -- Akira Takahashi, Hideaki Yoshino (NTT) |
In this paper, we discuss comprehensive quality estimation methodologies for IP telephony services, which are indispensa... [more] | CQ2005-23 pp.43-48 |
| CQ | 2005-07-15 11:10 |
Hokkaido | Wakkanai Hokusei Gakuen College | Effects of Conversation Roles on Quality of Multiparty Audiovisual Communication Services Takaaki Kurita (NTT) |
With the development of broadband networks, audiovisual communication services are beginning to be provided. To establis... [more] | CQ2005-32 pp.87-92 |
| CQ, MVE | 2005-01-28 11:20 |
Aichi | Nagoya Institute of Technology | A Proposal of Multi-Modal Quality Estimation Model for IP-Videophone Service Takanori Hayashi, Kazuhisa Yamagishi (NTT) |
With the advances in IP and multimedia technologies, multimedia services such as videophone and video streaming are bein... [more] | CQ2004-127 MVE2004-67 pp.29-34 |
| CQ, MVE | 2005-01-28 11:45 |
Aichi | Nagoya Institute of Technology | Video quality estimation by using network quality measure based on video frame information Toshiko Tominaga, Masataka Masuda, Takanori Hayashi (NTT) |
Video communication services have been expanding as more and more users get access to broadband connections. With Intern... [more] | CQ2004-128 MVE2004-68 pp.35-38 |
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