{"id":"https://openalex.org/W2122686636","doi":"https://doi.org/10.1109/tcsvt.2009.2031521","title":"Efficient Motion Re-Estimation With Rate-Distortion Optimization for MPEG-2 to H.264/AVC Transcoding","display_name":"Efficient Motion Re-Estimation With Rate-Distortion Optimization for MPEG-2 to H.264/AVC Transcoding","publication_year":2009,"publication_date":"2009-09-11","ids":{"openalex":"https://openalex.org/W2122686636","doi":"https://doi.org/10.1109/tcsvt.2009.2031521","mag":"2122686636"},"language":"en","primary_location":{"id":"doi:10.1109/tcsvt.2009.2031521","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2009.2031521","pdf_url":null,"source":{"id":"https://openalex.org/S115173108","display_name":"IEEE Transactions on Circuits and Systems for Video Technology","issn_l":"1051-8215","issn":["1051-8215","1558-2205"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems for Video Technology","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5076433797","display_name":"Qiang Tang","orcid":"https://orcid.org/0000-0002-9924-3939"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Qiang Tang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada","Dept. of Electr. & Comput. Eng., Univ. of British Columbia., Vancouver, BC, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada","institution_ids":["https://openalex.org/I141945490"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Univ. of British Columbia., Vancouver, BC, Canada","institution_ids":["https://openalex.org/I141945490"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5068915025","display_name":"Panos Nasiopoulos","orcid":"https://orcid.org/0000-0002-2654-8096"},"institutions":[{"id":"https://openalex.org/I141945490","display_name":"University of British Columbia","ror":"https://ror.org/03rmrcq20","country_code":"CA","type":"education","lineage":["https://openalex.org/I141945490"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"P. Nasiopoulos","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada","Dept. of Electr. & Comput. Eng., Univ. of British Columbia., Vancouver, BC, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of British Columbia, Vancouver, BC, Canada","institution_ids":["https://openalex.org/I141945490"]},{"raw_affiliation_string":"Dept. of Electr. & Comput. Eng., Univ. of British Columbia., Vancouver, BC, Canada","institution_ids":["https://openalex.org/I141945490"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5076433797"],"corresponding_institution_ids":["https://openalex.org/I141945490"],"apc_list":null,"apc_paid":null,"fwci":3.5246,"has_fulltext":false,"cited_by_count":31,"citation_normalized_percentile":{"value":0.92890001,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"20","issue":"2","first_page":"262","last_page":"274"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10741","display_name":"Video Coding and Compression Technologies","score":1.0,"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":1.0,"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9958000183105469,"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/T11165","display_name":"Image and Video Quality Assessment","score":0.9894999861717224,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/transcoding","display_name":"Transcoding","score":0.9562870264053345},{"id":"https://openalex.org/keywords/macroblock","display_name":"Macroblock","score":0.8160412907600403},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8044872283935547},{"id":"https://openalex.org/keywords/motion-estimation","display_name":"Motion estimation","score":0.6264453530311584},{"id":"https://openalex.org/keywords/rate\u2013distortion-theory","display_name":"Rate\u2013distortion theory","score":0.6180798411369324},{"id":"https://openalex.org/keywords/rate\u2013distortion-optimization","display_name":"Rate\u2013distortion optimization","score":0.6156659126281738},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.6149097084999084},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.550668478012085},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5278337597846985},{"id":"https://openalex.org/keywords/block-size","display_name":"Block size","score":0.4847507178783417},{"id":"https://openalex.org/keywords/scalable-video-coding","display_name":"Scalable Video Coding","score":0.45498648285865784},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.44623899459838867},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.43408313393592834},{"id":"https://openalex.org/keywords/quarter-pixel-motion","display_name":"Quarter-pixel motion","score":0.42632463574409485},{"id":"https://openalex.org/keywords/motion-compensation","display_name":"Motion compensation","score":0.37778276205062866},{"id":"https://openalex.org/keywords/block-matching-algorithm","display_name":"Block-matching algorithm","score":0.33346253633499146},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3009517788887024},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.16334116458892822},{"id":"https://openalex.org/keywords/video-tracking","display_name":"Video tracking","score":0.1375332474708557},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12013819813728333},{"id":"https://openalex.org/keywords/video-processing","display_name":"Video processing","score":0.11242377758026123}],"concepts":[{"id":"https://openalex.org/C134535813","wikidata":"https://www.wikidata.org/wiki/Q1888734","display_name":"Transcoding","level":2,"score":0.9562870264053345},{"id":"https://openalex.org/C124828224","wikidata":"https://www.wikidata.org/wiki/Q2632668","display_name":"Macroblock","level":3,"score":0.8160412907600403},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8044872283935547},{"id":"https://openalex.org/C10161872","wikidata":"https://www.wikidata.org/wiki/Q557891","display_name":"Motion estimation","level":2,"score":0.6264453530311584},{"id":"https://openalex.org/C64185310","wikidata":"https://www.wikidata.org/wiki/Q843483","display_name":"Rate\u2013distortion theory","level":3,"score":0.6180798411369324},{"id":"https://openalex.org/C50056821","wikidata":"https://www.wikidata.org/wiki/Q774502","display_name":"Rate\u2013distortion optimization","level":5,"score":0.6156659126281738},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.6149097084999084},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.550668478012085},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5278337597846985},{"id":"https://openalex.org/C41431624","wikidata":"https://www.wikidata.org/wiki/Q1053357","display_name":"Block size","level":3,"score":0.4847507178783417},{"id":"https://openalex.org/C133529210","wikidata":"https://www.wikidata.org/wiki/Q1076113","display_name":"Scalable Video Coding","level":3,"score":0.45498648285865784},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.44623899459838867},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.43408313393592834},{"id":"https://openalex.org/C174493125","wikidata":"https://www.wikidata.org/wiki/Q1073461","display_name":"Quarter-pixel motion","level":3,"score":0.42632463574409485},{"id":"https://openalex.org/C128840427","wikidata":"https://www.wikidata.org/wiki/Q1302174","display_name":"Motion compensation","level":2,"score":0.37778276205062866},{"id":"https://openalex.org/C167510206","wikidata":"https://www.wikidata.org/wiki/Q2835824","display_name":"Block-matching algorithm","level":4,"score":0.33346253633499146},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3009517788887024},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.16334116458892822},{"id":"https://openalex.org/C202474056","wikidata":"https://www.wikidata.org/wiki/Q1931635","display_name":"Video tracking","level":3,"score":0.1375332474708557},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12013819813728333},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.11242377758026123},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.0},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcsvt.2009.2031521","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2009.2031521","pdf_url":null,"source":{"id":"https://openalex.org/S115173108","display_name":"IEEE Transactions on Circuits and Systems for Video Technology","issn_l":"1051-8215","issn":["1051-8215","1558-2205"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Circuits and Systems for Video Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1970206562","https://openalex.org/W2029142287","https://openalex.org/W2029885843","https://openalex.org/W2099782448","https://openalex.org/W2102586937","https://openalex.org/W2106219841","https://openalex.org/W2112287792","https://openalex.org/W2118036554","https://openalex.org/W2118653546","https://openalex.org/W2130991882","https://openalex.org/W2140199336","https://openalex.org/W2143300595","https://openalex.org/W2148864965","https://openalex.org/W2149953580","https://openalex.org/W2171658981","https://openalex.org/W2171907820","https://openalex.org/W2172057245","https://openalex.org/W6685035631"],"related_works":["https://openalex.org/W2129948747","https://openalex.org/W2161079235","https://openalex.org/W2593019805","https://openalex.org/W2157242187","https://openalex.org/W2161217864","https://openalex.org/W2137206944","https://openalex.org/W1514241113","https://openalex.org/W3168232551","https://openalex.org/W2137001840","https://openalex.org/W2183042429"],"abstract_inverted_index":{"One":[0],"objective":[1],"in":[2,34,101,112,180],"MPEG-2":[3,54],"to":[4,10,55,70,119,146,172],"H.264/advanced":[5],"video":[6,38],"coding":[7],"transcoding":[8,57,122],"is":[9,27,76,134,190],"improve":[11],"the":[12,30,120,131,143,147,154,174,182],"H.264/AVC":[13,47,56],"compression":[14,103],"ratio":[15],"by":[16,28,157],"using":[17,80],"more":[18],"advanced":[19],"macroblock":[20],"encoding":[21],"modes.":[22],"The":[23],"motion":[24,68,176],"re-estimation":[25],"process":[26,33],"far":[29],"most":[31],"time-consuming":[32],"this":[35,41],"type":[36],"of":[37,140,142],"transcoding.":[39,113],"In":[40],"paper,":[42],"we":[43],"present":[44],"an":[45,138],"efficient":[46],"block":[48,72,81],"size":[49,73,82],"partitioning":[50,83],"prediction":[51],"algorithm":[52,60,152,178,189],"for":[53,160,166],"applications.":[58],"Our":[59],"uses":[61],"rate-distortion":[62,128],"optimization":[63],"techniques":[64],"and":[65,96,105,164,197],"predicted":[66],"initial":[67],"vectors":[69],"estimate":[71],"partitioning.":[74],"It":[75],"also":[77],"shown":[78],"that":[79,186],"smaller":[84],"than":[85],"8":[86,88,90],"\u00d7":[87,91,94,98],"(i.e.,":[89],"4,":[92],"4":[93,97],"8,":[95],"4)":[99],"results":[100,115,184],"negligible":[102],"improvements,":[104],"thus":[106],"these":[107],"sizes":[108],"should":[109],"be":[110],"avoided":[111],"Experimental":[114],"show":[116,185],"that,":[117],"compared":[118],"state-of-the-art":[121],"scheme,":[123,149],"our":[124,150,187],"transcoder":[125],"yields":[126],"similar":[127],"performance,":[129],"while":[130],"computational":[132,155,195],"complexity":[133,156,196],"significantly":[135],"reduced,":[136],"requiring":[137],"average":[139],"29%":[141],"computations.":[144],"Compared":[145,171],"full-search":[148],"proposed":[151,188],"reduces":[153],"about":[158],"99.47%":[159],"standard-definition":[161],"television":[162],"sequences":[163],"98.66%":[165],"common":[167],"intermediate":[168],"format":[169],"sequences.":[170],"UMHexagonS,":[173],"fast":[175],"estimation":[177],"used":[179],"H.264/AVC,":[181],"experimental":[183],"a":[191],"better":[192],"trade-off":[193],"between":[194],"picture":[198],"quality.":[199]},"counts_by_year":[{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":2},{"year":2015,"cited_by_count":2},{"year":2014,"cited_by_count":7},{"year":2013,"cited_by_count":8},{"year":2012,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
