{"id":"https://openalex.org/W2047080410","doi":"https://doi.org/10.1109/tmm.2014.2327563","title":"Post-Processing for Blocking Artifact Reduction Based on Inter-Block Correlation","display_name":"Post-Processing for Blocking Artifact Reduction Based on Inter-Block Correlation","publication_year":2014,"publication_date":"2014-05-30","ids":{"openalex":"https://openalex.org/W2047080410","doi":"https://doi.org/10.1109/tmm.2014.2327563","mag":"2047080410"},"language":"en","primary_location":{"id":"doi:10.1109/tmm.2014.2327563","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmm.2014.2327563","pdf_url":null,"source":{"id":"https://openalex.org/S137030581","display_name":"IEEE Transactions on Multimedia","issn_l":"1520-9210","issn":["1520-9210","1941-0077"],"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 Multimedia","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/A5046704537","display_name":"Seok Bong Yoo","orcid":"https://orcid.org/0000-0002-6528-701X"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seok Bong Yoo","raw_affiliation_strings":["Department of Electrical Engineering, KAIST, Daejeon, Republic of Korea","Department of Electrical Engineering KAIST, Daejeon, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, KAIST, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Department of Electrical Engineering KAIST, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006605032","display_name":"Kyuha Choi","orcid":"https://orcid.org/0000-0002-4271-6862"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Kyuha Choi","raw_affiliation_strings":["Department of Electrical Engineering, KAIST, Daejeon, Republic of Korea","Department of Electrical Engineering KAIST, Daejeon, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, KAIST, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Department of Electrical Engineering KAIST, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053183827","display_name":"Jong Beom","orcid":"https://orcid.org/0000-0002-0999-0982"},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jong Beom Ra","raw_affiliation_strings":["Department of Electrical Engineering, KAIST, Daejeon, Republic of Korea","Department of Electrical Engineering KAIST, Daejeon, Republic of Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, KAIST, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"Department of Electrical Engineering KAIST, Daejeon, Republic of Korea","institution_ids":["https://openalex.org/I157485424"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I157485424"],"apc_list":null,"apc_paid":null,"fwci":2.4066,"has_fulltext":false,"cited_by_count":48,"citation_normalized_percentile":{"value":0.89941048,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":"16","issue":"6","first_page":"1536","last_page":"1548"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"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"}},"topics":[{"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/T11105","display_name":"Advanced Image Processing Techniques","score":0.9994000196456909,"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9991000294685364,"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/discrete-cosine-transform","display_name":"Discrete cosine transform","score":0.794360339641571},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7579523921012878},{"id":"https://openalex.org/keywords/blocking","display_name":"Blocking (statistics)","score":0.7372747659683228},{"id":"https://openalex.org/keywords/block","display_name":"Block (permutation group theory)","score":0.6067114472389221},{"id":"https://openalex.org/keywords/blocking-effect","display_name":"Blocking effect","score":0.5786623358726501},{"id":"https://openalex.org/keywords/lapped-transform","display_name":"Lapped transform","score":0.5719846487045288},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.5293577313423157},{"id":"https://openalex.org/keywords/transform-coding","display_name":"Transform coding","score":0.45945224165916443},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4534655809402466},{"id":"https://openalex.org/keywords/macroblock","display_name":"Macroblock","score":0.4523199796676636},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.45209911465644836},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4458056688308716},{"id":"https://openalex.org/keywords/artifact","display_name":"Artifact (error)","score":0.4281367361545563},{"id":"https://openalex.org/keywords/block-size","display_name":"Block size","score":0.41571611166000366},{"id":"https://openalex.org/keywords/ringing-artifacts","display_name":"Ringing artifacts","score":0.4143988788127899},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.19429659843444824},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.16664254665374756},{"id":"https://openalex.org/keywords/decoding-methods","display_name":"Decoding methods","score":0.1631775200366974},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.07466986775398254}],"concepts":[{"id":"https://openalex.org/C2221639","wikidata":"https://www.wikidata.org/wiki/Q2877","display_name":"Discrete cosine transform","level":3,"score":0.794360339641571},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7579523921012878},{"id":"https://openalex.org/C144745244","wikidata":"https://www.wikidata.org/wiki/Q4927286","display_name":"Blocking (statistics)","level":2,"score":0.7372747659683228},{"id":"https://openalex.org/C2777210771","wikidata":"https://www.wikidata.org/wiki/Q4927124","display_name":"Block (permutation group theory)","level":2,"score":0.6067114472389221},{"id":"https://openalex.org/C23186085","wikidata":"https://www.wikidata.org/wiki/Q22906809","display_name":"Blocking effect","level":2,"score":0.5786623358726501},{"id":"https://openalex.org/C91458471","wikidata":"https://www.wikidata.org/wiki/Q17096468","display_name":"Lapped transform","level":5,"score":0.5719846487045288},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.5293577313423157},{"id":"https://openalex.org/C169805256","wikidata":"https://www.wikidata.org/wiki/Q1361381","display_name":"Transform coding","level":4,"score":0.45945224165916443},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4534655809402466},{"id":"https://openalex.org/C124828224","wikidata":"https://www.wikidata.org/wiki/Q2632668","display_name":"Macroblock","level":3,"score":0.4523199796676636},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.45209911465644836},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4458056688308716},{"id":"https://openalex.org/C2779010991","wikidata":"https://www.wikidata.org/wiki/Q2720909","display_name":"Artifact (error)","level":2,"score":0.4281367361545563},{"id":"https://openalex.org/C41431624","wikidata":"https://www.wikidata.org/wiki/Q1053357","display_name":"Block size","level":3,"score":0.41571611166000366},{"id":"https://openalex.org/C17828673","wikidata":"https://www.wikidata.org/wiki/Q7334899","display_name":"Ringing artifacts","level":3,"score":0.4143988788127899},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.19429659843444824},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.16664254665374756},{"id":"https://openalex.org/C57273362","wikidata":"https://www.wikidata.org/wiki/Q576722","display_name":"Decoding methods","level":2,"score":0.1631775200366974},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.07466986775398254},{"id":"https://openalex.org/C138496976","wikidata":"https://www.wikidata.org/wiki/Q175002","display_name":"Developmental psychology","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"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/tmm.2014.2327563","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmm.2014.2327563","pdf_url":null,"source":{"id":"https://openalex.org/S137030581","display_name":"IEEE Transactions on Multimedia","issn_l":"1520-9210","issn":["1520-9210","1941-0077"],"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 Multimedia","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","score":0.6499999761581421,"display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":50,"referenced_works":["https://openalex.org/W1571378769","https://openalex.org/W1971188170","https://openalex.org/W1978702630","https://openalex.org/W1983191846","https://openalex.org/W1985050490","https://openalex.org/W1991244327","https://openalex.org/W2017801928","https://openalex.org/W2038834876","https://openalex.org/W2041276189","https://openalex.org/W2043854246","https://openalex.org/W2049340374","https://openalex.org/W2053857834","https://openalex.org/W2056370875","https://openalex.org/W2064674198","https://openalex.org/W2071804214","https://openalex.org/W2106219841","https://openalex.org/W2110691818","https://openalex.org/W2113278123","https://openalex.org/W2113641518","https://openalex.org/W2114586165","https://openalex.org/W2117780481","https://openalex.org/W2118344463","https://openalex.org/W2122086266","https://openalex.org/W2123113293","https://openalex.org/W2124020876","https://openalex.org/W2124187578","https://openalex.org/W2124527927","https://openalex.org/W2126611844","https://openalex.org/W2127284563","https://openalex.org/W2128817806","https://openalex.org/W2130673281","https://openalex.org/W2133018656","https://openalex.org/W2133665775","https://openalex.org/W2133914077","https://openalex.org/W2135065661","https://openalex.org/W2136775697","https://openalex.org/W2136924750","https://openalex.org/W2138722660","https://openalex.org/W2140196014","https://openalex.org/W2141620200","https://openalex.org/W2144899104","https://openalex.org/W2145737388","https://openalex.org/W2146395539","https://openalex.org/W2154005911","https://openalex.org/W2156291710","https://openalex.org/W2157992185","https://openalex.org/W2160866359","https://openalex.org/W2162461247","https://openalex.org/W4252459207","https://openalex.org/W6680215893"],"related_works":["https://openalex.org/W2124265168","https://openalex.org/W2100617367","https://openalex.org/W2098327476","https://openalex.org/W2379482093","https://openalex.org/W144008570","https://openalex.org/W1993528680","https://openalex.org/W2086087597","https://openalex.org/W2366173767","https://openalex.org/W2389137092","https://openalex.org/W96419594"],"abstract_inverted_index":{"Block-based":[0],"coding":[1],"introduces":[2],"an":[3],"undesirable":[4],"discontinuity":[5],"between":[6,86,127],"neighboring":[7,87],"blocks":[8,117],"in":[9,29,89,95,134,156,170],"reconstructed":[10],"images.":[11],"This":[12,130],"image":[13],"degradation,":[14],"referred":[15],"to":[16,23,91,103,123,147],"as":[17,44,151,153],"blocking":[18,52,72,93,132,154,168],"artifacts,":[19],"arises":[20],"mainly":[21],"due":[22],"the":[24,30,77,96,104,125,135,143,163],"loss":[25],"of":[26,33,66],"inter-block":[27,67],"correlation":[28,68,126],"quantization":[31],"process":[32],"discrete":[34,81],"cosine":[35,82],"transform":[36,83],"coefficients.":[37],"In":[38,54,141],"many":[39],"multimedia":[40],"broadcasting":[41],"applications,":[42],"such":[43],"a":[45,59],"television,":[46],"decoded":[47],"video":[48,157],"sequences":[49],"suffer":[50],"from":[51],"artifacts.":[53,73],"this":[55],"paper,":[56],"we":[57],"present":[58],"novel":[60],"post-processing":[61],"algorithm":[62,144],"based":[63],"on":[64],"increment":[65],"aimed":[69],"at":[70],"reducing":[71],"We":[74,108],"first":[75],"smooth":[76],"three":[78],"lowest":[79],"frequency":[80],"(DCT)":[84],"coefficients":[85],"blocks,":[88],"order":[90],"reduce":[92,148],"artifacts":[94,133,150,155,169],"flat":[97],"region,":[98],"which":[99],"are":[100],"most":[101],"sensitive":[102],"human":[105],"visual":[106],"system.":[107],"then":[109],"group":[110],"each":[111],"edge":[112,136],"block":[113],"and":[114,119,173],"its":[115],"matched":[116],"together":[118],"apply":[120],"group-based":[121],"filtering":[122],"increase":[124],"grouped":[128],"blocks.":[129],"suppresses":[131],"region":[137],"while":[138],"preserving":[139],"details.":[140],"addition,":[142],"is":[145],"extended":[146],"flickering":[149],"well":[152],"sequences.":[158],"Experimental":[159],"results":[160],"show":[161],"that":[162],"proposed":[164],"method":[165],"successfully":[166],"alleviates":[167],"both":[171],"images":[172],"videos":[174],"coded":[175],"with":[176],"low":[177],"bit-rates.":[178]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":10},{"year":2020,"cited_by_count":5},{"year":2019,"cited_by_count":6},{"year":2018,"cited_by_count":5},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":3}],"updated_date":"2026-08-12T21:12:35.861297","created_date":"2025-10-10T00:00:00"}