Enhancements to the opinion model for video-telephony applications
Resumen:
In this paper, we show how the proposed model in ITU-T Recommendation G.1070 “Opinion model for video-telephony applications” cannot model properly the perceptual video quality, especially in the low bit rate range, due to the great variation of MOS values depending on video content. In this work, we present different enhancements to the model, allowing a much better approximation to the perceptual MOS values, knowing only the subjective movement content in the video application, classified in “Low”, “Medium” or “High”. Studies were made for more than 1500 processed video clips, coded in MPEG-2 and H.264/AVC, in bit rate ranges from 50 kb/s to 12 Mb/s, in SD, VGA, CIF and QCIF display formats. Video clips subjective quality was estimated using one of the quality metrics standardized in ITU-T Recommendation J.144 and ITU-R Recommendation BT.1683.
| 2009 | |
|
Video perceptual quality Video codecs Video signal processing VoIP Network design |
|
| Inglés | |
| Universidad de la República | |
| COLIBRI | |
| https://hdl.handle.net/20.500.12008/38669 | |
| Acceso abierto | |
| Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| _version_ | 1807522934107930624 |
|---|---|
| author | Joskowicz, José |
| author2 | López Ardao, José Carlos |
| author2_role | author |
| author_facet | Joskowicz, José López Ardao, José Carlos |
| author_role | author |
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| collection | COLIBRI |
| dc.creator.none.fl_str_mv | Joskowicz, José López Ardao, José Carlos |
| dc.date.accessioned.none.fl_str_mv | 2023-08-01T20:33:16Z |
| dc.date.available.none.fl_str_mv | 2023-08-01T20:33:16Z |
| dc.date.issued.es.fl_str_mv | 2009 |
| dc.date.submitted.es.fl_str_mv | 20230801 |
| dc.description.abstract.none.fl_txt_mv | In this paper, we show how the proposed model in ITU-T Recommendation G.1070 “Opinion model for video-telephony applications” cannot model properly the perceptual video quality, especially in the low bit rate range, due to the great variation of MOS values depending on video content. In this work, we present different enhancements to the model, allowing a much better approximation to the perceptual MOS values, knowing only the subjective movement content in the video application, classified in “Low”, “Medium” or “High”. Studies were made for more than 1500 processed video clips, coded in MPEG-2 and H.264/AVC, in bit rate ranges from 50 kb/s to 12 Mb/s, in SD, VGA, CIF and QCIF display formats. Video clips subjective quality was estimated using one of the quality metrics standardized in ITU-T Recommendation J.144 and ITU-R Recommendation BT.1683. |
| dc.identifier.citation.es.fl_str_mv | Joskowicz, J, López Ardao, J. “Enhancements to the opinion model for video-telephony applications”. Proceedings of the 5th International Latin American Networking Conference , LANC 2009, Pelotas, Brazil, 2009. doi: 10.1145/1636682.1636697 |
| dc.identifier.doi.es.fl_str_mv | doi: 10.1145/1636682.1636697 |
| dc.identifier.uri.none.fl_str_mv | https://hdl.handle.net/20.500.12008/38669 |
| dc.language.iso.none.fl_str_mv | en eng |
| dc.publisher.es.fl_str_mv | LANC |
| dc.relation.ispartof.es.fl_str_mv | 5th International Latin American Networking Conference , LANC 2009, Pelotas, Brazil, 2009 |
| dc.rights.license.none.fl_str_mv | Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| dc.rights.none.fl_str_mv | info:eu-repo/semantics/openAccess |
| dc.source.none.fl_str_mv | reponame:COLIBRI instname:Universidad de la República instacron:Universidad de la República |
| dc.subject.es.fl_str_mv | Video perceptual quality Video codecs Video signal processing VoIP Network design |
| dc.title.none.fl_str_mv | Enhancements to the opinion model for video-telephony applications |
| dc.type.es.fl_str_mv | Ponencia |
| dc.type.none.fl_str_mv | info:eu-repo/semantics/conferenceObject |
| dc.type.version.none.fl_str_mv | info:eu-repo/semantics/publishedVersion |
| description | In this paper, we show how the proposed model in ITU-T Recommendation G.1070 “Opinion model for video-telephony applications” cannot model properly the perceptual video quality, especially in the low bit rate range, due to the great variation of MOS values depending on video content. In this work, we present different enhancements to the model, allowing a much better approximation to the perceptual MOS values, knowing only the subjective movement content in the video application, classified in “Low”, “Medium” or “High”. Studies were made for more than 1500 processed video clips, coded in MPEG-2 and H.264/AVC, in bit rate ranges from 50 kb/s to 12 Mb/s, in SD, VGA, CIF and QCIF display formats. Video clips subjective quality was estimated using one of the quality metrics standardized in ITU-T Recommendation J.144 and ITU-R Recommendation BT.1683. |
| eu_rights_str_mv | openAccess |
| format | conferenceObject |
| id | COLIBRI_c13ca9d93e1933dc846d1b602808fa5a |
| identifier_str_mv | Joskowicz, J, López Ardao, J. “Enhancements to the opinion model for video-telephony applications”. Proceedings of the 5th International Latin American Networking Conference , LANC 2009, Pelotas, Brazil, 2009. doi: 10.1145/1636682.1636697 doi: 10.1145/1636682.1636697 |
| instacron_str | Universidad de la República |
| institution | Universidad de la República |
| instname_str | Universidad de la República |
| language | eng |
| language_invalid_str_mv | en |
| network_acronym_str | COLIBRI |
| network_name_str | COLIBRI |
| oai_identifier_str | oai:colibri.udelar.edu.uy:20.500.12008/38669 |
| publishDate | 2009 |
| reponame_str | COLIBRI |
| repository.mail.fl_str_mv | mabel.seroubian@seciu.edu.uy |
| repository.name.fl_str_mv | COLIBRI - Universidad de la República |
| repository_id_str | 4771 |
| rights_invalid_str_mv | Licencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0) |
| spelling | 2023-08-01T20:33:16Z2023-08-01T20:33:16Z200920230801Joskowicz, J, López Ardao, J. “Enhancements to the opinion model for video-telephony applications”. Proceedings of the 5th International Latin American Networking Conference , LANC 2009, Pelotas, Brazil, 2009. doi: 10.1145/1636682.1636697https://hdl.handle.net/20.500.12008/38669doi: 10.1145/1636682.1636697In this paper, we show how the proposed model in ITU-T Recommendation G.1070 “Opinion model for video-telephony applications” cannot model properly the perceptual video quality, especially in the low bit rate range, due to the great variation of MOS values depending on video content. In this work, we present different enhancements to the model, allowing a much better approximation to the perceptual MOS values, knowing only the subjective movement content in the video application, classified in “Low”, “Medium” or “High”. Studies were made for more than 1500 processed video clips, coded in MPEG-2 and H.264/AVC, in bit rate ranges from 50 kb/s to 12 Mb/s, in SD, VGA, CIF and QCIF display formats. Video clips subjective quality was estimated using one of the quality metrics standardized in ITU-T Recommendation J.144 and ITU-R Recommendation BT.1683.Made available in DSpace on 2023-08-01T20:33:16Z (GMT). No. of bitstreams: 5 JL09.pdf: 265055 bytes, checksum: b84b78d76c6c250e606ccd63f20b0576 (MD5) license_text: 21936 bytes, checksum: 9833653f73f7853880c94a6fead477b1 (MD5) license_url: 49 bytes, checksum: 4afdbb8c545fd630ea7db775da747b2f (MD5) license_rdf: 23148 bytes, checksum: 9da0b6dfac957114c6a7714714b86306 (MD5) license.txt: 4194 bytes, checksum: 7f2e2c17ef6585de66da58d1bfa8b5e1 (MD5) Previous issue date: 2009enengLANC5th International Latin American Networking Conference , LANC 2009, Pelotas, Brazil, 2009Las obras depositadas en el Repositorio se rigen por la Ordenanza de los Derechos de la Propiedad Intelectual de la Universidad De La República. (Res. Nº 91 de C.D.C. de 8/III/1994 – D.O. 7/IV/1994) y por la Ordenanza del Repositorio Abierto de la Universidad de la República (Res. Nº 16 de C.D.C. de 07/10/2014)info:eu-repo/semantics/openAccessLicencia Creative Commons Atribución - No Comercial - Sin Derivadas (CC - By-NC-ND 4.0)Video perceptual qualityVideo codecsVideo signal processingVoIP Network designEnhancements to the opinion model for video-telephony applicationsPonenciainfo:eu-repo/semantics/conferenceObjectinfo:eu-repo/semantics/publishedVersionreponame:COLIBRIinstname:Universidad de la Repúblicainstacron:Universidad de la RepúblicaJoskowicz, JoséLópez Ardao, José 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- Universidad de la Repúblicafalse |
| spellingShingle | Enhancements to the opinion model for video-telephony applications Joskowicz, José Video perceptual quality Video codecs Video signal processing VoIP Network design |
| status_str | publishedVersion |
| title | Enhancements to the opinion model for video-telephony applications |
| title_full | Enhancements to the opinion model for video-telephony applications |
| title_fullStr | Enhancements to the opinion model for video-telephony applications |
| title_full_unstemmed | Enhancements to the opinion model for video-telephony applications |
| title_short | Enhancements to the opinion model for video-telephony applications |
| title_sort | Enhancements to the opinion model for video-telephony applications |
| topic | Video perceptual quality Video codecs Video signal processing VoIP Network design |
| url | https://hdl.handle.net/20.500.12008/38669 |
