{"id":"https://openalex.org/W2890447646","doi":"https://doi.org/10.1109/icip.2018.8451684","title":"A 4D DCT-Based Lenslet Light Field Codec","display_name":"A 4D DCT-Based Lenslet Light Field Codec","publication_year":2018,"publication_date":"2018-09-07","ids":{"openalex":"https://openalex.org/W2890447646","doi":"https://doi.org/10.1109/icip.2018.8451684","mag":"2890447646"},"language":"en","primary_location":{"id":"doi:10.1109/icip.2018.8451684","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icip.2018.8451684","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 25th IEEE International Conference on Image Processing (ICIP)","raw_type":"proceedings-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/A5073008665","display_name":"Murilo B. de Carvalho","orcid":"https://orcid.org/0000-0002-7964-1876"},"institutions":[{"id":"https://openalex.org/I161127581","display_name":"Universidade Federal Fluminense","ror":"https://ror.org/02rjhbb08","country_code":"BR","type":"education","lineage":["https://openalex.org/I161127581"]}],"countries":["BR"],"is_corresponding":true,"raw_author_name":"Murilo B. de Carvalho","raw_affiliation_strings":["TET/CTC, Universidade Federal Fluminense, Niteroi, Brazil"],"affiliations":[{"raw_affiliation_string":"TET/CTC, Universidade Federal Fluminense, Niteroi, Brazil","institution_ids":["https://openalex.org/I161127581"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087676894","display_name":"Marcio P. Pereira","orcid":"https://orcid.org/0000-0002-4851-7397"},"institutions":[{"id":"https://openalex.org/I122140584","display_name":"Universidade Federal do Rio de Janeiro","ror":"https://ror.org/03490as77","country_code":"BR","type":"education","lineage":["https://openalex.org/I122140584"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Marcio P. Pereira","raw_affiliation_strings":["PEE/COPPE/DEL/POLI/UFRJ, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil"],"affiliations":[{"raw_affiliation_string":"PEE/COPPE/DEL/POLI/UFRJ, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil","institution_ids":["https://openalex.org/I122140584"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027292276","display_name":"Gustavo Alves","orcid":"https://orcid.org/0000-0002-5831-2109"},"institutions":[{"id":"https://openalex.org/I122140584","display_name":"Universidade Federal do Rio de Janeiro","ror":"https://ror.org/03490as77","country_code":"BR","type":"education","lineage":["https://openalex.org/I122140584"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Gustavo Alves","raw_affiliation_strings":["PEE/COPPE/DEL/POLI/UFRJ, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil"],"affiliations":[{"raw_affiliation_string":"PEE/COPPE/DEL/POLI/UFRJ, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil","institution_ids":["https://openalex.org/I122140584"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081219742","display_name":"Eduardo A. B. da Silva","orcid":"https://orcid.org/0000-0001-7755-6988"},"institutions":[{"id":"https://openalex.org/I122140584","display_name":"Universidade Federal do Rio de Janeiro","ror":"https://ror.org/03490as77","country_code":"BR","type":"education","lineage":["https://openalex.org/I122140584"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Eduardo A. B. da Silva","raw_affiliation_strings":["PEE/COPPE/DEL/POLI/UFRJ, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil"],"affiliations":[{"raw_affiliation_string":"PEE/COPPE/DEL/POLI/UFRJ, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil","institution_ids":["https://openalex.org/I122140584"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5019614099","display_name":"Carla L. Pagliari","orcid":"https://orcid.org/0000-0002-7759-9598"},"institutions":[{"id":"https://openalex.org/I41870","display_name":"Military Institute of Engineering","ror":"https://ror.org/03veakt65","country_code":"BR","type":"education","lineage":["https://openalex.org/I41870"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Carla L. Pagliari","raw_affiliation_strings":["PEE/PGED/IME, Instituto Militar de Engenharia, Rio de Janeiro, Brazil"],"affiliations":[{"raw_affiliation_string":"PEE/PGED/IME, Instituto Militar de Engenharia, Rio de Janeiro, Brazil","institution_ids":["https://openalex.org/I41870"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044708805","display_name":"Fernando Pereira","orcid":"https://orcid.org/0000-0001-6100-947X"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Fernando Pereira","raw_affiliation_strings":["Instituto Superior Tecnico, Instituto de Telecomunicacoes, Lisbon, Portugal"],"affiliations":[{"raw_affiliation_string":"Instituto Superior Tecnico, Instituto de Telecomunicacoes, Lisbon, Portugal","institution_ids":["https://openalex.org/I4210120471"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052913710","display_name":"Vanessa Testoni","orcid":"https://orcid.org/0000-0003-0399-8323"},"institutions":[{"id":"https://openalex.org/I4210161640","display_name":"Samsung (Brazil)","ror":"https://ror.org/052a20h63","country_code":"BR","type":"company","lineage":["https://openalex.org/I2250650973","https://openalex.org/I4210161640"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Vanessa Testoni","raw_affiliation_strings":["Samsung Research, Brazil"],"affiliations":[{"raw_affiliation_string":"Samsung Research, Brazil","institution_ids":["https://openalex.org/I4210161640"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5073008665"],"corresponding_institution_ids":["https://openalex.org/I161127581"],"apc_list":null,"apc_paid":null,"fwci":3.51,"has_fulltext":false,"cited_by_count":56,"citation_normalized_percentile":{"value":0.94832495,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"435","last_page":"439"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9998999834060669,"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9998999834060669,"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/T10741","display_name":"Video Coding and Compression Technologies","score":0.9991000294685364,"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/T10901","display_name":"Advanced Data Compression Techniques","score":0.9970999956130981,"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":0.772777795791626},{"id":"https://openalex.org/keywords/light-field","display_name":"Light field","score":0.7584548592567444},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7251982092857361},{"id":"https://openalex.org/keywords/discrete-cosine-transform","display_name":"Discrete cosine transform","score":0.7223623394966125},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.552899956703186},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.52614825963974},{"id":"https://openalex.org/keywords/rate\u2013distortion-theory","display_name":"Rate\u2013distortion theory","score":0.5131112337112427},{"id":"https://openalex.org/keywords/transform-coding","display_name":"Transform coding","score":0.5031248927116394},{"id":"https://openalex.org/keywords/jpeg","display_name":"JPEG","score":0.4691179096698761},{"id":"https://openalex.org/keywords/redundancy","display_name":"Redundancy (engineering)","score":0.4661152958869934},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.4129679799079895},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.40761294960975647},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.20914709568023682},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07893148064613342},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.07739442586898804}],"concepts":[{"id":"https://openalex.org/C161765866","wikidata":"https://www.wikidata.org/wiki/Q184748","display_name":"Codec","level":2,"score":0.772777795791626},{"id":"https://openalex.org/C48983235","wikidata":"https://www.wikidata.org/wiki/Q593161","display_name":"Light field","level":2,"score":0.7584548592567444},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7251982092857361},{"id":"https://openalex.org/C2221639","wikidata":"https://www.wikidata.org/wiki/Q2877","display_name":"Discrete cosine transform","level":3,"score":0.7223623394966125},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.552899956703186},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.52614825963974},{"id":"https://openalex.org/C64185310","wikidata":"https://www.wikidata.org/wiki/Q843483","display_name":"Rate\u2013distortion theory","level":3,"score":0.5131112337112427},{"id":"https://openalex.org/C169805256","wikidata":"https://www.wikidata.org/wiki/Q1361381","display_name":"Transform coding","level":4,"score":0.5031248927116394},{"id":"https://openalex.org/C198751489","wikidata":"https://www.wikidata.org/wiki/Q2195","display_name":"JPEG","level":3,"score":0.4691179096698761},{"id":"https://openalex.org/C152124472","wikidata":"https://www.wikidata.org/wiki/Q1204361","display_name":"Redundancy (engineering)","level":2,"score":0.4661152958869934},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.4129679799079895},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.40761294960975647},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.20914709568023682},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07893148064613342},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.07739442586898804},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icip.2018.8451684","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icip.2018.8451684","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2018 25th IEEE International Conference on Image Processing (ICIP)","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":22,"referenced_works":["https://openalex.org/W1031997367","https://openalex.org/W1588594383","https://openalex.org/W1818002383","https://openalex.org/W2030333316","https://openalex.org/W2050576295","https://openalex.org/W2105557003","https://openalex.org/W2163121497","https://openalex.org/W2170171048","https://openalex.org/W2524177174","https://openalex.org/W2524211401","https://openalex.org/W2525331240","https://openalex.org/W2525683018","https://openalex.org/W2526321439","https://openalex.org/W2556168980","https://openalex.org/W2622195611","https://openalex.org/W2789672498","https://openalex.org/W2793519528","https://openalex.org/W4298335083","https://openalex.org/W6727190386","https://openalex.org/W6727594811","https://openalex.org/W6727742320","https://openalex.org/W6727756192"],"related_works":["https://openalex.org/W4200377430","https://openalex.org/W2147471256","https://openalex.org/W2601209352","https://openalex.org/W4313377945","https://openalex.org/W4220747575","https://openalex.org/W2164990255","https://openalex.org/W2111280862","https://openalex.org/W2167365418","https://openalex.org/W2545896937","https://openalex.org/W2049997602"],"abstract_inverted_index":{"Light":[0,154],"fields":[1,68],"aim":[2],"to":[3,37,128,146],"represent":[4],"visual":[5],"information":[6],"in":[7,35],"3D":[8],"space.":[9],"They":[10],"are":[11,103],"4D":[12,64,72,83,88,101],"structures":[13],"that":[14,60],"contain":[15],"the":[16,38,63,79,96,100,112,130,147,151],"images":[17],"of":[18,27,48,66,92,99],"a":[19,23,32,45,56,71,87,108],"given":[20],"scene":[21],"from":[22],"sampled":[24],"2D":[25],"range":[26],"viewpoints.":[28],"When":[29],"acquired":[30],"using":[31,70,105,117,142],"lenslet":[33,133],"camera,":[34],"addition":[36],"ordinary":[39],"intra-view":[40],"redundancy,":[41],"these":[42],"views":[43],"have":[44,139],"great":[46],"deal":[47],"inter-view":[49],"redundancy.":[50],"In":[51],"this":[52],"work":[53],"we":[54],"propose":[55],"light":[57,67,80,134],"field":[58,81],"codec":[59,124],"fully":[61],"exploits":[62],"redundancy":[65],"by":[69],"transform":[73,97],"and":[74,85,111],"hexadeca-trees.":[75],"It":[76],"initially":[77],"divides":[78],"into":[82],"blocks":[84],"computes":[86],"Discrete":[89],"Cosine":[90],"Transform":[91],"each":[93],"one.":[94],"Then":[95],"coefficients":[98],"block":[102],"grouped":[104],"hexadeca-trees":[106],"on":[107],"bitplane-by-bitplane":[109],"basis,":[110],"generated":[113],"stream":[114],"is":[115],"encoded":[116],"an":[118],"adaptive":[119],"arithmetic":[120],"coder.":[121],"The":[122,136,159],"proposed":[123,160],"has":[125],"been":[126,140],"employed":[127],"encode":[129],"JPEG":[131],"Pleno":[132],"fields.":[135],"rate-distortion":[137,168],"results":[138],"assessed":[141],"test":[143],"conditions":[144],"comparable":[145],"ones":[148],"presented":[149],"at":[150],"ICIP":[152],"2017":[153],"Field":[155],"Coding":[156],"Grand":[157],"Challenge.":[158],"codec,":[161],"despite":[162],"being":[163],"conceptually":[164],"simple,":[165],"achieves":[166],"competitive":[167],"performance.":[169]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":7},{"year":2021,"cited_by_count":12},{"year":2020,"cited_by_count":11},{"year":2019,"cited_by_count":9},{"year":2018,"cited_by_count":1}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}