{"id":"https://openalex.org/W2000265672","doi":"https://doi.org/10.1145/1636682.1636697","title":"Enhancements to the opinion model for video-telephony applications","display_name":"Enhancements to the opinion model for video-telephony applications","publication_year":2009,"publication_date":"2009-09-24","ids":{"openalex":"https://openalex.org/W2000265672","doi":"https://doi.org/10.1145/1636682.1636697","mag":"2000265672"},"language":"en","primary_location":{"id":"doi:10.1145/1636682.1636697","is_oa":true,"landing_page_url":"https://doi.org/10.1145/1636682.1636697","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/1636682.1636697","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 5th International Latin American Networking Conference","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/1636682.1636697","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5043596242","display_name":"Jos\u00e9 Joskowicz","orcid":"https://orcid.org/0000-0001-5374-0879"},"institutions":[{"id":"https://openalex.org/I180910786","display_name":"Universidad de la Rep\u00fablica","ror":"https://ror.org/030bbe882","country_code":"UY","type":"education","lineage":["https://openalex.org/I180910786"]}],"countries":["UY"],"is_corresponding":true,"raw_author_name":"Jose Joskowicz","raw_affiliation_strings":["Universidad de la Rep\u00fablica, Montevideo, Uruguay"],"affiliations":[{"raw_affiliation_string":"Universidad de la Rep\u00fablica, Montevideo, Uruguay","institution_ids":["https://openalex.org/I180910786"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025672705","display_name":"J.C. L\u00f3pez-Ardao","orcid":"https://orcid.org/0000-0002-3390-0035"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"J. Carlos L\u00f3pez Ardao","raw_affiliation_strings":["ETSE Telecomunicaci\u00f3n, Campus Universitario, Vigo, Spain"],"affiliations":[{"raw_affiliation_string":"ETSE Telecomunicaci\u00f3n, Campus Universitario, Vigo, Spain","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5043596242"],"corresponding_institution_ids":["https://openalex.org/I180910786"],"apc_list":null,"apc_paid":null,"fwci":4.2296,"has_fulltext":true,"cited_by_count":30,"citation_normalized_percentile":{"value":0.94033284,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"87","last_page":"94"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10741","display_name":"Video Coding and Compression Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10741","display_name":"Video Coding and Compression Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11165","display_name":"Image and Video Quality Assessment","score":0.9998000264167786,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":0.996399998664856,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.854928195476532},{"id":"https://openalex.org/keywords/video-graphics-array","display_name":"Video Graphics Array","score":0.73554927110672},{"id":"https://openalex.org/keywords/pevq","display_name":"PEVQ","score":0.7043744325637817},{"id":"https://openalex.org/keywords/mean-opinion-score","display_name":"Mean opinion score","score":0.6121081709861755},{"id":"https://openalex.org/keywords/video-quality","display_name":"Video quality","score":0.609038770198822},{"id":"https://openalex.org/keywords/telephony","display_name":"Telephony","score":0.604128897190094},{"id":"https://openalex.org/keywords/multimedia","display_name":"Multimedia","score":0.5683690309524536},{"id":"https://openalex.org/keywords/video-processing","display_name":"Video processing","score":0.4985029697418213},{"id":"https://openalex.org/keywords/mpeg-4","display_name":"MPEG-4","score":0.49202510714530945},{"id":"https://openalex.org/keywords/high-definition-video","display_name":"High-definition video","score":0.4853755235671997},{"id":"https://openalex.org/keywords/bit-rate","display_name":"Bit rate","score":0.4696098268032074},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.43126043677330017},{"id":"https://openalex.org/keywords/clips","display_name":"CLIPS","score":0.42489129304885864},{"id":"https://openalex.org/keywords/videotelephony","display_name":"Videotelephony","score":0.41962379217147827},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.34095993638038635},{"id":"https://openalex.org/keywords/video-compression-picture-types","display_name":"Video compression picture types","score":0.293830931186676},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2555687427520752},{"id":"https://openalex.org/keywords/video-tracking","display_name":"Video tracking","score":0.25105050206184387},{"id":"https://openalex.org/keywords/software","display_name":"Software","score":0.21658596396446228},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.21553578972816467},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2007569968700409},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.06923419237136841}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.854928195476532},{"id":"https://openalex.org/C139983466","wikidata":"https://www.wikidata.org/wiki/Q17194","display_name":"Video Graphics Array","level":3,"score":0.73554927110672},{"id":"https://openalex.org/C156414586","wikidata":"https://www.wikidata.org/wiki/Q15995396","display_name":"PEVQ","level":5,"score":0.7043744325637817},{"id":"https://openalex.org/C62897895","wikidata":"https://www.wikidata.org/wiki/Q1915482","display_name":"Mean opinion score","level":3,"score":0.6121081709861755},{"id":"https://openalex.org/C103910844","wikidata":"https://www.wikidata.org/wiki/Q2631256","display_name":"Video quality","level":3,"score":0.609038770198822},{"id":"https://openalex.org/C195358072","wikidata":"https://www.wikidata.org/wiki/Q944584","display_name":"Telephony","level":2,"score":0.604128897190094},{"id":"https://openalex.org/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","level":1,"score":0.5683690309524536},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.4985029697418213},{"id":"https://openalex.org/C97501218","wikidata":"https://www.wikidata.org/wiki/Q219763","display_name":"MPEG-4","level":3,"score":0.49202510714530945},{"id":"https://openalex.org/C2780236118","wikidata":"https://www.wikidata.org/wiki/Q2916762","display_name":"High-definition video","level":2,"score":0.4853755235671997},{"id":"https://openalex.org/C2987812609","wikidata":"https://www.wikidata.org/wiki/Q194158","display_name":"Bit rate","level":2,"score":0.4696098268032074},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.43126043677330017},{"id":"https://openalex.org/C2778739407","wikidata":"https://www.wikidata.org/wiki/Q165372","display_name":"CLIPS","level":2,"score":0.42489129304885864},{"id":"https://openalex.org/C540522513","wikidata":"https://www.wikidata.org/wiki/Q854954","display_name":"Videotelephony","level":2,"score":0.41962379217147827},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.34095993638038635},{"id":"https://openalex.org/C106030495","wikidata":"https://www.wikidata.org/wiki/Q1797012","display_name":"Video compression picture types","level":4,"score":0.293830931186676},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2555687427520752},{"id":"https://openalex.org/C202474056","wikidata":"https://www.wikidata.org/wiki/Q1931635","display_name":"Video tracking","level":3,"score":0.25105050206184387},{"id":"https://openalex.org/C2777904410","wikidata":"https://www.wikidata.org/wiki/Q7397","display_name":"Software","level":2,"score":0.21658596396446228},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.21553578972816467},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2007569968700409},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.06923419237136841},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/1636682.1636697","is_oa":true,"landing_page_url":"https://doi.org/10.1145/1636682.1636697","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/1636682.1636697","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 5th International Latin American Networking Conference","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/1636682.1636697","is_oa":true,"landing_page_url":"https://doi.org/10.1145/1636682.1636697","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/1636682.1636697","source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 5th International Latin American Networking Conference","raw_type":"proceedings-article"},"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2000265672.pdf","grobid_xml":"https://content.openalex.org/works/W2000265672.grobid-xml"},"referenced_works_count":12,"referenced_works":["https://openalex.org/W832984975","https://openalex.org/W1517990291","https://openalex.org/W1628877954","https://openalex.org/W1759901977","https://openalex.org/W1995060904","https://openalex.org/W2106219841","https://openalex.org/W2108072792","https://openalex.org/W2125654704","https://openalex.org/W2134788085","https://openalex.org/W2140199336","https://openalex.org/W2147260115","https://openalex.org/W4301913116"],"related_works":["https://openalex.org/W1993168297","https://openalex.org/W2611572988","https://openalex.org/W1193244420","https://openalex.org/W2345852733","https://openalex.org/W2108072792","https://openalex.org/W1998556666","https://openalex.org/W2288214742","https://openalex.org/W2128733396","https://openalex.org/W2945699210","https://openalex.org/W2000265672"],"abstract_inverted_index":{"In":[0,44],"this":[1,45],"paper,":[2],"we":[3,47],"show":[4],"how":[5],"the":[6,21,27,34,52,60,66,71,122],"proposed":[7],"model":[8,14,19],"in":[9,26,70,75,91,95,105,126],"ITU-T":[10,127],"Recommendation":[11,128,132],"G.1070":[12],"\"Opinion":[13],"for":[15,83],"video-telephony":[16],"applications\"":[17],"cannot":[18],"properly":[20],"perceptual":[22,61],"video":[23,42,72,88],"quality,":[24],"especially":[25],"low":[28],"bit":[29,96],"rate":[30,97],"range,":[31],"due":[32],"to":[33,51,59,102],"great":[35],"variation":[36],"of":[37,121],"MOS":[38,62],"values":[39],"depending":[40],"on":[41],"content.":[43],"work,":[46],"present":[48],"different":[49],"enhancements":[50],"model,":[53],"allowing":[54],"a":[55],"much":[56],"better":[57],"approximation":[58],"values,":[63],"knowing":[64],"only":[65],"subjective":[67,115],"movement":[68],"content":[69],"application,":[73],"classified":[74],"\"Low\",":[76],"\"Medium\"":[77],"or":[78],"\"High\".":[79],"Studies":[80],"were":[81],"made":[82],"more":[84],"than":[85],"1500":[86],"processed":[87],"clips,":[89],"coded":[90],"MPEG-2":[92],"and":[93,109,130],"H.264/AVC,":[94],"ranges":[98],"from":[99],"50":[100],"kb/s":[101],"12":[103],"Mb/s,":[104],"SD,":[106],"VGA,":[107],"CIF":[108],"QCIF":[110],"display":[111],"formats.":[112],"Video":[113],"clips":[114],"quality":[116,123],"was":[117],"estimated":[118],"using":[119],"one":[120],"metrics":[124],"standardized":[125],"J.144":[129],"ITU-R":[131],"BT.1683.":[133]},"counts_by_year":[{"year":2017,"cited_by_count":3},{"year":2016,"cited_by_count":5},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":5},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}