Service quality assessment – management

A. Takahashi, D. Hands, and V. Barriac, "Standardization activities in ITU on QoE assessment of IPTV," IEEE Commun. Magazine, pp. 78-84, 2008.2.
A. Takahashi, "Applications of objective quality assessment models in IPTV," ETSI Workshop on EFFECTS OF TRANSMISSION PERFORMANCE ON MULTIMEDIA QoS, 2008.6.
[http://portal.etsi.org/docbox/Workshop/2008/2008_06_STQWORKSHOP/NTT_TAKAHASHI.pdf]
S. Moeller, A. Raake, N. Kitawaki, A. Takahashi, and M. Waltermann, "Impairment Factor Framework for Wideband Speech Codecs," IEEE Trans. on ASLP, Vol. 14, No. 6, pp. 1969-1976, Nov. 2006.
A. Takahashi, A. Kurashima and H. Yoshino, "Objective Assessment Methodology for Estimating Conversational Quality in VoIP," IEEE Trans. on ASLP, Vol. 14, No. 6, pp. 1984-1993, Nov. 2006.
A. Takahashi, N. Egi, and A. Kurashima, "QoE estimation method for interconnected VoIP networks employing different codecs," IEICE Trans. on Commun., Vol. E90-B, No. 12, pp. 3572-3578, 2007. 12.
A. Takahashi, A. Kurashima, H. Aoki and H. Yoshino, "Estimation of conversational quality of IP telephony services," WTC2006, 2006.5.
[www.wtc2006.hu/present/1568969280_X_takahashi_NTT_Japan.ppt]
M. Masuda, T. Hayashi, "Non-intrusive Quality Monitoring Method of VoIP Speech Based on Network Performance Metrics." IEICE Trans. Commun. Vol.E89-B, No.2, pp.304-312, Feb. 2006.
M. Masuda, T. Furukawa, T. Hayashi, S. Majima, "End-to-end Quality Management Method for VoIP Speech Using RTCP XR," IEICE Trans. Commun. Vol.E90-B, No.11, pp.3073-3082, Nov. 2007.
N. Egi, H. Aoki, and A. Takahashi, "Objective Quality Evaluation Method for Noise-Reduced Speech," Proc. MESAQIN2007, 2007.6.
N. Egi, H. Aoki and A. Takahashi, "Objective quality evaluation method for noise-reduced speech," IEICE Transactions on Communications, Vol. E91-B, No. 5, pp. 1279-1286, 2008.5.
Masataka Masuda, Koudai Yamamoto, Souhei Majima, Takanori Hayashi, and Kounosuke Kawashima,
Performance Evaluation of VoIP QoE Monitoring Using RTCP XR,"
Asia-Pacific Network Operations and Management Symposium 2009 (APNOMS 2009), Sept. 2009.
T. Hayashi, K. Yamagishi, T. Tominaga, and A. Takahashi, "Multimedia Quality Integration Function for Videophone Services," IEEE GLOBECOM 2007, PMQRS09-2, pp.2735-2739, Nov. 2007.
T. Hayashi, K. Yamagishi, and H. Yoshino, "Perceptual QoS Evaluation Model for Audiovisual Communication Services," World Telecommunications Congress 2006 (WTC'06), May 2006.
[http://www.wtc2006.hu/present/1568973318_X_hayashi_NTT_Japan.ppt]
K. Yamagishi and T. Hayashi, "Video-Quality Planning Model for Videophone Services," ITE, pp.76 - 84 July 2008.
K. Yamagishi and T. Hayashi, "Verification of Video Quality Opinion Model for Videophone Services," 2nd ISCA Tutorial & Research Workshop on Perceptual Quality of Systems, pp.143 - 148, Sep. 2006.
K. Yamagishi and T. Hayashi, "Opinion Model for Estimating Video Quality of Videophone Services," IEEE GLOBECOM 2006, QRP08-1, pp.1 - 15, Nov. 2006.
J. Okamoto, K. Watanabe and T. Kurita, "Objective Video Quality Assessment Method for Video Streams Spatially Distorted by Coding and Packet Loss," Proc. of SIP, 576-091, pp.271-276, Aug. 2007.
T. Tominaga, K. Yamagishi, and T. Hayashi, "Multimedia quality assessment method for IPTV services," IMQA 2008.
K. Yamagishi and T. Hayashi, "Parametric Packet-Layer Model for Monitoring Video Quality of IPTV Services," IEEE ICC 2008, CQ04-3, pp.110 - 114, May 2008.
K. Watanabe, J. Okamoto and T. Kurita, "An objective video quality assessment method for freeze distortion in video communication services," IEICE Trans. on Comm., Vol. J90-B, No. 10, pp. 1036-1044, Oct. 2007.
K. Watanabe, J. Okamoto and T. Kurita, "Objective video quality assessment method for evaluating effects of freeze distortion in arbitrary video scenes," Proc. of SPIE, Image Quality and System Performance IV, Proc. Vol., 6494, Jan. 2007.
Keishiro Watanabe, Kazuhisa Yamagishi, Jun Okamoto, and Akira Takahashi, "Proposal of new QoE assessment approach for quality management of IPTV services," Proc. of IEEE ICIP, no. 1815, Oct. 2008.
T. Hayashi, G. Kawaguti, J. Okamoto, and A. Takahashi, "Subjective Quality Estimation Model for Video Streaming Services with Dynamic Bit-rate Control," IEICE Trans. Commun. Vol.E89-B, No.2, pp.297-303, Feb. 2006.
Kazuhisa Yamagishi, Taichi Kawano, and Takanori Hayashi,
"Hybrid video-quality-estimation model for IPTV services,"
IEEE Global Telecommunications Conference 2009 (GLOBECOM 2009), Nov. 2009.