Y. Urata, M. Koike, K. Yamagishi, and N. Egi, “Metadata-based Quality-Estimation Model for Tile-based Omnidirectional Video Streaming,” IEICE Transactions on Communications, vol.E106-B, No.5, pp.478-488, May 2023.
M. Koike, Y. Urata, and K. Yamagishi, “Bitstream-quality-estimation Model for Tile-based VR Video Streaming Services,” IEICE Transactions on Communications, vol.E105-B, No.8, pp.1002-1013, Aug. 2022.
【査読付国際会議】
Kimiko Kawashima, Yuichiro Urata, Noritsugu Egi, and Kazuhisa Yamagishi, “Study on Effect of Display Layout for Web Conferencing Services on Subjective Evaluation Stability,” in Proc. of Electronic Imaging 2024, pp. 222-1-222-6, Jan. 2024.
Masanori Koike, Yuichiro Urata, Noritsugu Egi, and Kazuhisa Yamagishi, “Extension of ITU-T P.1204.3 Model to Tile-Based VR Streaming Services,” in Proc. of IEEE CQR 2021, May 2021.
Yuichiro Urata, Masanori Koike, Kazuhisa Yamagishi, Noritsugu Egi, and Jun Okamoto, “Extension of ITU-T P.1203 model to tile-based omnidirectional video streaming," in Proc. of Electronic Imaging 2021, pp. 161-1-161-6, Jan. 2021.
Motohiro Takagi, Hiroshi Fujii, Atsushi Shimizu, Yuichiro Urata, and Kazuhisa Yamagishi, "Subjective Video Quality Estimation to Determine Optimal Spatio-temporal Resolution," Picture Coding Symposium (PCS 2013), Dec. 2013.
【研究会】
浦田勇一朗,恵木則次,増田征貴, "複数サービスを対象とした主観品質評価法の検討," 信学技報, CQ2022-8, pp. 38-43, May 2022.
吉村憲子,浦田勇一朗,恵木則次, “画質変動や再生停止を含む映像に対する主観品質評価の安定性分析,” 信学技報, CQ2021-20, pp. 86-91, May 2021.
浦田勇一朗,小池正憲,山岸和久,恵木則次, “タイルベースVR映像配信に対するITU-T勧告P.1203モデルの拡張,” 信学技報, CQ2020-115, pp. 38-43, Mar. 2021.
浦田勇一朗, 小池正憲, 山岸和久, ”ITU-T勧告P.1203技術のVR映像配信への適用可能性,” 信学技報, CQ2019-52, pp.79-83, July 2019.
小池正憲, 浦田勇一朗, 山岸和久, “タイルベースVR映像配信サービスの客観品質推定モデルに関する検討,” 信学技報, CQ2018-102, pp.55-59, Mar. 2019.
浦田勇一朗, 山岸和久, "ITU-T勧告P.1201.1映像品質推定モデルの拡張," 信学総大, B-11-11, Mar. 2013.
【標準化寄書】
M. Koike, Y. Urata, K. Yamagishi, “Subjective Quality Assessment for Tile-based VR Video Streaming,” ITU-T Contribution COM 12 – C346, May 2019.
A. Takahashi, Y. Urata, M. Masuda, "Proposal for extension of methodology for deriving equipment impairment factors from instrumental models of Recommendation ITU-T P.834.1 and P.834," ITU-T Contribution COM 12 – C257, May 2015.
Y. Urata, "Audio part of the G.OMVAS for Lower Resolution scenario," ITU-T Contribution COM 12 - C181, Sept. 2014.
A. Takahashi, Y. Urata, M. Masuda, "Proposal for extension of methodology for deriving equipment impairment factors from instrumental models of Recommendation ITU-T P.834.1," ITU-T Contribution COM 12 - C180, Sept. 2014.
Y. Urata, "Results of NTT test conducted in March," ITU-T SG12 Q.14 Rapporteur’s meeting in Chemnitz, Jun. 2014.
Y. Urata, "Proposed models in P.NATS," ITU-T SG12 Q.14 Rapporteur’s meeting in Stockholm, Feb. 2014.