{"id":"https://openalex.org/W2117225452","doi":"https://doi.org/10.1109/icassp.2003.1199553","title":"Efficient face coding in video sequences combining adaptive principal component analysis and a hybrid codec approach","display_name":"Efficient face coding in video sequences combining adaptive principal component analysis and a hybrid codec approach","publication_year":2003,"publication_date":"2003-12-22","ids":{"openalex":"https://openalex.org/W2117225452","doi":"https://doi.org/10.1109/icassp.2003.1199553","mag":"2117225452"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2003.1199553","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2003.1199553","pdf_url":null,"source":{"id":"https://openalex.org/S4363608982","display_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","raw_type":"proceedings-article"},"type":"conference-paper","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/A5111911035","display_name":"R. Pique","orcid":null},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"R. Pique","raw_affiliation_strings":["Technical University of Catalonia, Barcelona, Spain","Tech. Univ. of Catalonia, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technical University of Catalonia, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]},{"raw_affiliation_string":"Tech. Univ. of Catalonia, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100775939","display_name":"L. Torres","orcid":"https://orcid.org/0000-0001-9141-9875"},"institutions":[{"id":"https://openalex.org/I9617848","display_name":"Universitat Polit\u00e8cnica de Catalunya","ror":"https://ror.org/03mb6wj31","country_code":"ES","type":"education","lineage":["https://openalex.org/I9617848"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"L. Torres","raw_affiliation_strings":["Technical University of Catalonia, Barcelona, Spain","Tech. Univ. of Catalonia, Barcelona, Spain"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Technical University of Catalonia, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]},{"raw_affiliation_string":"Tech. Univ. of Catalonia, Barcelona, Spain","institution_ids":["https://openalex.org/I9617848"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I9617848"],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":"3","issue":null,"first_page":"III","last_page":"629"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T10901","display_name":"Advanced Data Compression Techniques","score":0.9990000128746033,"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/T10860","display_name":"Speech and Audio Processing","score":0.9966999888420105,"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/T10057","display_name":"Face and Expression Recognition","score":0.9932000041007996,"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/codec","display_name":"Codec","score":0.8373915553092957},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8007920980453491},{"id":"https://openalex.org/keywords/context-adaptive-binary-arithmetic-coding","display_name":"Context-adaptive binary arithmetic coding","score":0.6086714863777161},{"id":"https://openalex.org/keywords/coding-tree-unit","display_name":"Coding tree unit","score":0.6031550168991089},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.5936642289161682},{"id":"https://openalex.org/keywords/context-adaptive-variable-length-coding","display_name":"Context-adaptive variable-length coding","score":0.5787062644958496},{"id":"https://openalex.org/keywords/multiview-video-coding","display_name":"Multiview Video Coding","score":0.5603682398796082},{"id":"https://openalex.org/keywords/algorithmic-efficiency","display_name":"Algorithmic efficiency","score":0.5214214324951172},{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.4918239116668701},{"id":"https://openalex.org/keywords/bit-rate","display_name":"Bit rate","score":0.4790419340133667},{"id":"https://openalex.org/keywords/predictive-coding","display_name":"Predictive coding","score":0.4483340382575989},{"id":"https://openalex.org/keywords/mpeg-4","display_name":"MPEG-4","score":0.44351544976234436},{"id":"https://openalex.org/keywords/bitstream","display_name":"Bitstream","score":0.4250609576702118},{"id":"https://openalex.org/keywords/scalable-video-coding","display_name":"Scalable Video Coding","score":0.4190114736557007},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4145345091819763},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3752621114253998},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.36183565855026245},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.3429889976978302},{"id":"https://openalex.org/keywords/computer-engineering","display_name":"Computer engineering","score":0.338066041469574},{"id":"https://openalex.org/keywords/motion-compensation","display_name":"Motion compensation","score":0.3135507106781006},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3091301918029785},{"id":"https://openalex.org/keywords/video-processing","display_name":"Video processing","score":0.27232587337493896},{"id":"https://openalex.org/keywords/computer-hardware","display_name":"Computer hardware","score":0.2250145971775055},{"id":"https://openalex.org/keywords/video-tracking","display_name":"Video tracking","score":0.19396108388900757},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09851032495498657}],"concepts":[{"id":"https://openalex.org/C161765866","wikidata":"https://www.wikidata.org/wiki/Q184748","display_name":"Codec","level":2,"score":0.8373915553092957},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8007920980453491},{"id":"https://openalex.org/C175732694","wikidata":"https://www.wikidata.org/wiki/Q1128713","display_name":"Context-adaptive binary arithmetic coding","level":3,"score":0.6086714863777161},{"id":"https://openalex.org/C190750250","wikidata":"https://www.wikidata.org/wiki/Q13533439","display_name":"Coding tree unit","level":3,"score":0.6031550168991089},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.5936642289161682},{"id":"https://openalex.org/C135534801","wikidata":"https://www.wikidata.org/wiki/Q1128721","display_name":"Context-adaptive variable-length coding","level":4,"score":0.5787062644958496},{"id":"https://openalex.org/C23431618","wikidata":"https://www.wikidata.org/wiki/Q1404672","display_name":"Multiview Video Coding","level":4,"score":0.5603682398796082},{"id":"https://openalex.org/C116709606","wikidata":"https://www.wikidata.org/wiki/Q1296251","display_name":"Algorithmic efficiency","level":3,"score":0.5214214324951172},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.4918239116668701},{"id":"https://openalex.org/C2987812609","wikidata":"https://www.wikidata.org/wiki/Q194158","display_name":"Bit rate","level":2,"score":0.4790419340133667},{"id":"https://openalex.org/C2778061373","wikidata":"https://www.wikidata.org/wiki/Q1315146","display_name":"Predictive coding","level":3,"score":0.4483340382575989},{"id":"https://openalex.org/C97501218","wikidata":"https://www.wikidata.org/wiki/Q219763","display_name":"MPEG-4","level":3,"score":0.44351544976234436},{"id":"https://openalex.org/C136695289","wikidata":"https://www.wikidata.org/wiki/Q415568","display_name":"Bitstream","level":3,"score":0.4250609576702118},{"id":"https://openalex.org/C133529210","wikidata":"https://www.wikidata.org/wiki/Q1076113","display_name":"Scalable Video Coding","level":3,"score":0.4190114736557007},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4145345091819763},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3752621114253998},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.36183565855026245},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.3429889976978302},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.338066041469574},{"id":"https://openalex.org/C128840427","wikidata":"https://www.wikidata.org/wiki/Q1302174","display_name":"Motion compensation","level":2,"score":0.3135507106781006},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3091301918029785},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.27232587337493896},{"id":"https://openalex.org/C9390403","wikidata":"https://www.wikidata.org/wiki/Q3966","display_name":"Computer hardware","level":1,"score":0.2250145971775055},{"id":"https://openalex.org/C202474056","wikidata":"https://www.wikidata.org/wiki/Q1931635","display_name":"Video tracking","level":3,"score":0.19396108388900757},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09851032495498657},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2003.1199553","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2003.1199553","pdf_url":null,"source":{"id":"https://openalex.org/S4363608982","display_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2003 IEEE International Conference on Acoustics, Speech, and Signal Processing, 2003. Proceedings. (ICASSP '03).","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":5,"referenced_works":["https://openalex.org/W1486959789","https://openalex.org/W1659403773","https://openalex.org/W2125675458","https://openalex.org/W2128716185","https://openalex.org/W2163976215"],"related_works":["https://openalex.org/W2591803935","https://openalex.org/W1587703409","https://openalex.org/W2616610850","https://openalex.org/W2010959128","https://openalex.org/W1978571360","https://openalex.org/W1513011444","https://openalex.org/W2082291686","https://openalex.org/W2098766434","https://openalex.org/W2043905160","https://openalex.org/W1966572252"],"abstract_inverted_index":{"This":[0],"paper":[1,96],"presents":[2,73],"a":[3,7,30,84],"new":[4,31,39],"proposal":[5],"for":[6,12,97],"video":[8,16],"coding":[9,67,78],"scheme":[10,23],"intended":[11],"human":[13],"faces":[14],"in":[15,35,51,94],"sequences":[17],"using":[18,55],"an":[19],"eigenspace":[20,33],"approach.":[21],"The":[22,43,69],"greatly":[24],"improves":[25],"previous":[26],"results":[27],"by":[28],"proposing":[29],"adaptive":[32],"technique":[34],"combination":[36],"with":[37,66],"the":[38,46,52,56,74,95],"upcoming":[40],"standard":[41],"AVC.":[42],"description":[44],"of":[45],"face":[47],"is":[48],"also":[49],"included":[50],"bit":[53,71],"stream":[54,72],"MPEG-7":[57],"descriptors":[58],"thus":[59],"providing":[60],"search":[61],"and":[62,82],"browsing":[63],"functionalities":[64],"along":[65],"efficiency.":[68],"total":[70],"better":[75],"or":[76],"same":[77],"efficiency":[79],"than":[80],"AVC/H.264":[81],"offers":[83],"very":[85],"competitive":[86],"alternative":[87],"to":[88],"B-predictive":[89],"frames.":[90],"Results":[91],"are":[92],"provided":[93],"bit-rates":[98],"around":[99],"2.5":[100],"Kbit/s.":[101]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}