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All Technical Committee Conferences (All Years)
| Committee | Date Time | Place | Paper Title / Authors | Abstract | Paper # | |
| MVE, IMQ, IE, CQ (Joint) [detail] |
2021-03-03 11:35 |
Online | Online | Extension of ITU-T Recommendation P.1203 model to Tile-based VR Video Streaming Yuichiro Urata, Msanori Koike, Kazuhisa Yamagishi, Noritsugu Egi (NTT)  CQ2020-115 |
Recently, omnidirectional virtual reality (VR) video streaming has become widespread. Since the data size of omnidirecti... [more] | CQ2020-115 pp.38-43 |
| CQ, CBE (Joint) |
2021-01-20 10:55 |
Online | Online | [Invited Lecture]
Video Streaming Quality Estimation and Control Techniques Kazuhisa Yamagishi (NTT) CQ2020-63 |
Video streaming services have spread widely and videos have been watched by mobile terminals in addition to TV sets. In... [more] |
CQ2020-63 pp.17-21 |
| IE, IMQ, MVE, CQ (Joint) [detail] |
2020-03-05 13:00 |
Fukuoka | Kyushu Institute of Technology (Cancelled but technical report was issued) |
Study on Video Quality Characteristics for AV1 Codec Noriko Yoshimura, Noritusgu Egi, Kazuhisa Yamagishi (NTT) CQ2019-142 |
[more] | CQ2019-142 pp.41-44 |
| IE, IMQ, MVE, CQ (Joint) [detail] |
2020-03-05 13:20 |
Fukuoka | Kyushu Institute of Technology (Cancelled but technical report was issued) |
Performance Evaluation of Full-reference Video Quality Metrics for AV1 Codec Noritsugu Egi, Kazuhisa Yamagishi, Noriko Yoshimura (NTT) CQ2019-143 |
[more] | CQ2019-143 pp.45-50 |
| NS, ICM, CQ, NV (Joint) |
2019-11-22 11:40 |
Hyogo | Rokkodai 2nd Campus, Kobe Univ. | Study on Video Quality Characteristics for AVC, HEVC, VP9, and AV1 Noriko Yoshimura, Lebreton Pierre, Noritusgu Egi, Kazuhisa Yamagishi (NTT) CQ2019-101 |
To extend the high resolution and framerate (3840×2160/60p) video streaming, video encoder and decoder(CODEC) have been ... [more] | CQ2019-101 pp.71-75 |
| CQ | 2019-07-18 10:45 |
Niigata | Niigata Univ. | Viewing-abandonment-factor Estimation for Adaptive Bitrate Video Streaming Shoko Takahashi, Kazuhisa Yamagishi (NTT) CQ2019-36 |
Recently, adaptive bitrate video streaming services have spread widely. However, in spite of realizing smoother playbac... [more] | CQ2019-36 pp.19-24 |
| CQ | 2019-07-19 09:30 |
Niigata | Niigata Univ. | An applicability of ITU-T Recommendation P.1203 model to VR video streaming Yuichiro Urata, Masanori Koike, Kazuhisa Yamagishi (NTT) CQ2019-52 |
Recently, omnidirectional video streaming has spread widely, the quality of experience (QoE) monitoring is desirable. Th... [more] | CQ2019-52 pp.79-83 |
| IMQ, IE, MVE, CQ (Joint) [detail] |
2019-03-14 15:10 |
Kagoshima | Kagoshima University | A Study on Objective Quality Estimation Model for Tile-based VR Video Streaming Services Masanori Koike, Yuichiro Urata, Kazuhisa Yamagishi (NTT) CQ2018-102 |
In tile-based VR video distribution service with a head-mounted display, users perceive the quality degradation due to w... [more] | CQ2018-102 pp.55-59 |
| CQ | 2018-07-19 15:30 |
Miyagi | Tohoku Univ. | [Tutorial Invited Lecture]
Standardization Trends in ITU-T SG12 Kazuhisa Yamagishi (NTT) CQ2018-34 |
Study on performance, quality of service (QoS) and quality of experience (QoE) became increasingly important due to adv... [more] |
CQ2018-34 pp.19-23 |
| CQ, CS (Joint) |
2018-04-20 09:45 |
Hiroshima | Hiroshima Institute of Technology | Relationship among quality factors and viewing time for adaptive-bitrate-video-streaming services Kimiko Kawashima, Kazuhisa Yamagishi (NTT) CQ2018-8 |
[more] | CQ2018-8 pp.41-45 |
| CQ, MVE, IE, IMQ (Joint) [detail] |
2018-03-09 09:30 |
Okinawa | Okinawa Industry Support Center | Analysis of Factors Affecting Viewing Time of Adaptive Bitrate Video Streaming Services Shoko Takahashi, Kimiko Kawashima, Kazuhisa Yamagishi (NTT) CQ2017-117 |
In the adaptive bitrate video streaming services for mobile terminals, application quality degradation leads not only to... [more] | CQ2017-117 pp.81-86 |
| ICM, CQ, NS, NV (Joint) |
2017-11-17 09:15 |
Kagawa | Analysis of User Manipulation for Adaptive Bitrate Video Streaming Services Shoko Takahashi, Kimiko Kawashima, Kazuhisa Yamagishi (NTT) CQ2017-77 |
In the adaptive bitrate video streaming services for mobile terminals, quality degradation leads not only to the deterio... [more] | CQ2017-77 pp.39-44 |
|
| MVE, IE, CQ, IMQ (Joint) [detail] |
2017-03-07 10:35 |
Fukuoka | Kyusyu Univ. Ohashi Campus | Subjective Assessment Characteristics of Watching 4K and Full HD videos Kimiko Kawashima, Kazuhisa Yamagishi, Takanori Hayashi (NTT) CQ2016-123 |
[more] | CQ2016-123 pp.83-88 |
| CQ | 2016-07-26 14:30 |
Osaka | The Osaka Umeda Campus, Kwansei Gakuin Univesity | Analysis on Stability of Subjective Assessment Method for Video Quality Kimiko Kawashima, Kazuhisa Yamagishi, Takanori Hayashi (NTT) CQ2016-36 |
[more] | CQ2016-36 pp.19-23 |
| MVE, IE, WIT, IMQ, CQ (Joint) [detail] |
2013-03-12 12:00 |
Fukuoka | Fukuoka Institute of Technology | Validity verification of ITU-T Recommendation P.1201.1 Model Extended for Video Resolution Yuichiro Urata, Kazuhisa Yamagishi (NTT) CQ2012-94 |
To monitor video quality for progressive download services, we study a video quality estimation model. A video quality e... [more] | CQ2012-94 pp.59-63 |
| MoNA, CQ (Joint) |
2012-09-28 10:40 |
Kagawa | Kagawa pref. Takamatsu-city | Performance comparison of subjective quality assessment method for 3D video Taichi Kawano, Kazuhisa Yamagishi (NTT) CQ2012-51 |
Recently, 3D video services have become popular. It is important for service providers to design an application and netw... [more] | CQ2012-51 pp.53-58 |
| CQ | 2011-07-14 15:15 |
Hokkaido | Otaru civic hall | Quality-estimation model for stereoscopic video services Kazuhisa Yamagishi (NTT), Lina Karam (Arizona State Univ.), Jun Okamoto (NTT) CQ2011-23 |
[more] | CQ2011-23 pp.29-32 |
| PRMU, SP, MVE, CQ | 2010-01-21 13:40 |
Kyoto | Kyoto Univ. | No reference media layer video quality assessment model for IPTV services Taichi Kawano, Kazuhisa Yamagishi, Jun Okamoto (NTT) CQ2009-76 PRMU2009-175 SP2009-116 MVE2009-98 |
[more] | CQ2009-76 PRMU2009-175 SP2009-116 MVE2009-98 pp.137-142 |
| 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 |
| USN, CQ, MoNA (Joint) |
2008-01-25 16:00 |
Shizuoka | Kenshu Kouryu Center, Actcity Hamamatsu (Shizuoka) | Non-intrusive video quality estimation model for IPTV services Kazuhisa Yamagishi, Takanori Hayashi (NTT) CQ2007-94 |
[more] | CQ2007-94 pp.77-80 |
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