A. Takahashi, N. Egi, A. Kurashima, "QoE estimation method for interconnected VoIP networks employing different codecs," IEICE Transactions on Communications, Vol. E90-B, No. 12, pp. 3572-3578, Dec. 2007. [pdf (open access)]
N. Egi, H. Aoki, A. Takahashi, "Objective quality evaluation method for noise-reduced speech," IEICE Transactions on Communications, Vol. E91-B, No. 5, pp. 1279-1286, May 2008. [pdf (open access)]
N. Egi, T. Hayashi, A. Takahashi, "Parametric Packet-Layer Model for Evaluation Audio Quality in Multimedia Streaming Services," IEICE Transactions on Communications, Vol. E93-B, No. 6, pp. 1359-1366, May 2010. [pdf (open access)]
N. Egi, J. Okamoto, A. Takahashi , T. Hayashi, "Subjective test method for quantifying speaker identification accuracy of bandwidth-limited speech," IEICE Communications Express, Vol. 5, No. 10, pp. 387-393, 2016.
K. Yamagishi, N. Egi, N. Yoshimura, and P. Lebreton, "Derivation Procedure of Coefficients of Metadata-based Model for Adaptive Bitrate Streaming Services," IEICE Transactions on Communications, vol. E104-B, no. 7, pp. 725-737, 2021. [pdf (open access)]
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. [pdf (open access)]
【査読付国際会議】
N. Egi, H. Aoki, and A. Takahashi, "Objective Quality Evaluation Method for Noise-Reduced Speech," Proc. MESAQIN2007, Jun. 2007.
S. Möller, N. Côté, A. Kurashima, N. Egi, A. Takahashi, "Quantifying wideband speech codec degradations via impairment factors: the new ITU-t p.834.1 methodology and its application to the g.711.1 codec" Proc. INTERSPEECH2009, pp2563-2566, Sep. 2009.
N. Egi, T. Hayashi, A. Takahashi, "THE PROPOSAL OF QUANTIFICATION METHOD OF SPEAKER IDENTIFICATION ACCURACY FOR SPEECH COMMUNICATION SERVICE", in Proceedings of ICASSP 2011, pp.2424-2427, May 2011.
M. Koike, Y. Urata, N. Egi, and K. Yamagishi, "Extension of ITU-T P.1204.3 Model to Tile-Based VR Streaming Services," in Proc. of IEEE CQR 2021, May 2021.
Y. Urata, M. Koike, K. Yamagishi, N. Egi, and J. 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.
M. Koike, N. Egi, and K. Yamagishi, “The estimation techniques of object-recognition rate in surveillance video of autonomous driving,” ITU-T Contribution COM 12 C81, Jan. 2023.
K. Yamagishi and N. Egi, "Proposal for side information in P.NAMS," ITU-T SG12 Q.14 Rapporteur's meeting in Berlin, Sept. 2010.
N. Egi, K. Yamagishi, "Proposal of audio quality estimation model for P.NAMS and G.OMVS," ITU-T SG12 Q13/14寄書, Q-13-004, Q14-003, 2008.3.
A. Takahashi, A. Kurashima, and N. Egi, "Results of characterization tests for G.711 wideband extension codec," ITU-T SG12 Q.7 Rapporteur's meeting in Lannion, 2008.1.