{"id":"https://openalex.org/W1986879390","doi":"https://doi.org/10.1117/12.2002239","title":"Light field image denoising using a linear 4D frequency-hyperfan all-in-focus filter","display_name":"Light field image denoising using a linear 4D frequency-hyperfan all-in-focus filter","publication_year":2013,"publication_date":"2013-02-14","ids":{"openalex":"https://openalex.org/W1986879390","doi":"https://doi.org/10.1117/12.2002239","mag":"1986879390"},"language":"en","primary_location":{"id":"doi:10.1117/12.2002239","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.2002239","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","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/A5002518455","display_name":"Donald G. Dansereau","orcid":"https://orcid.org/0000-0003-2540-1639"},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]}],"countries":["AU"],"is_corresponding":true,"raw_author_name":"Donald G. Dansereau","raw_affiliation_strings":["The Univ. of Sydney (Australia)","The University of Sydney, Austr\u00e1lia"],"affiliations":[{"raw_affiliation_string":"The Univ. of Sydney (Australia)","institution_ids":["https://openalex.org/I129604602"]},{"raw_affiliation_string":"The University of Sydney, Austr\u00e1lia","institution_ids":["https://openalex.org/I129604602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5082971090","display_name":"Daniel L. Bongiorno","orcid":null},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Daniel L. Bongiorno","raw_affiliation_strings":["The Univ. of Sydney (Australia)","The University of Sydney, Austr\u00e1lia"],"affiliations":[{"raw_affiliation_string":"The Univ. of Sydney (Australia)","institution_ids":["https://openalex.org/I129604602"]},{"raw_affiliation_string":"The University of Sydney, Austr\u00e1lia","institution_ids":["https://openalex.org/I129604602"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068908958","display_name":"Oscar Pizarro","orcid":"https://orcid.org/0000-0001-6612-2738"},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Oscar Pizarro","raw_affiliation_strings":["The Univ. of Sydney (Australia)","The University of Sydney, Austr\u00e1lia"],"affiliations":[{"raw_affiliation_string":"The Univ. of Sydney (Australia)","institution_ids":["https://openalex.org/I129604602"]},{"raw_affiliation_string":"The University of Sydney, Austr\u00e1lia","institution_ids":["https://openalex.org/I129604602"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5044131792","display_name":"Stefan B. Williams","orcid":"https://orcid.org/0000-0001-9416-5639"},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Stefan B. Williams","raw_affiliation_strings":["The Univ. of Sydney (Australia)","The University of Sydney, Austr\u00e1lia"],"affiliations":[{"raw_affiliation_string":"The Univ. of Sydney (Australia)","institution_ids":["https://openalex.org/I129604602"]},{"raw_affiliation_string":"The University of Sydney, Austr\u00e1lia","institution_ids":["https://openalex.org/I129604602"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5002518455"],"corresponding_institution_ids":["https://openalex.org/I129604602"],"apc_list":null,"apc_paid":null,"fwci":4.7007,"has_fulltext":false,"cited_by_count":61,"citation_normalized_percentile":{"value":0.95440246,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"8657","issue":null,"first_page":"86570P","last_page":"86570P"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10531","display_name":"Advanced Vision and Imaging","score":0.9991999864578247,"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":0.9991999864578247,"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":0.9983999729156494,"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/T13114","display_name":"Image Processing Techniques and Applications","score":0.9980000257492065,"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":0.8044153451919556},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.7002936601638794},{"id":"https://openalex.org/keywords/light-field","display_name":"Light field","score":0.6752097606658936},{"id":"https://openalex.org/keywords/rendering","display_name":"Rendering (computer graphics)","score":0.6736117601394653},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.6440543532371521},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.641653299331665},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.6098543405532837},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.5223056674003601},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.4555864930152893},{"id":"https://openalex.org/keywords/depth-of-field","display_name":"Depth of field","score":0.44167017936706543},{"id":"https://openalex.org/keywords/image-restoration","display_name":"Image restoration","score":0.43327414989471436},{"id":"https://openalex.org/keywords/computational-photography","display_name":"Computational photography","score":0.42847228050231934},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.357908695936203},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.29711830615997314},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.18683737516403198},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09369772672653198}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8044153451919556},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.7002936601638794},{"id":"https://openalex.org/C48983235","wikidata":"https://www.wikidata.org/wiki/Q593161","display_name":"Light field","level":2,"score":0.6752097606658936},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.6736117601394653},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.6440543532371521},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.641653299331665},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.6098543405532837},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.5223056674003601},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.4555864930152893},{"id":"https://openalex.org/C183072630","wikidata":"https://www.wikidata.org/wiki/Q215932","display_name":"Depth of field","level":2,"score":0.44167017936706543},{"id":"https://openalex.org/C106430172","wikidata":"https://www.wikidata.org/wiki/Q6002272","display_name":"Image restoration","level":4,"score":0.43327414989471436},{"id":"https://openalex.org/C146044194","wikidata":"https://www.wikidata.org/wiki/Q5157334","display_name":"Computational photography","level":4,"score":0.42847228050231934},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.357908695936203},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.29711830615997314},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.18683737516403198},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09369772672653198}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1117/12.2002239","is_oa":false,"landing_page_url":"https://doi.org/10.1117/12.2002239","pdf_url":null,"source":{"id":"https://openalex.org/S183492911","display_name":"Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE","issn_l":"0277-786X","issn":["0277-786X","1996-756X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310315543","host_organization_name":"SPIE","host_organization_lineage":["https://openalex.org/P4310315543"],"host_organization_lineage_names":["SPIE"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"SPIE Proceedings","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.677.2505","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.677.2505","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"http://www-personal.acfr.usyd.edu.au/ddan1654/Hyperfan.pdf","raw_type":"text"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","score":0.6800000071525574,"id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320315885","display_name":"Australian Government","ror":"https://ror.org/0314h5y94"},{"id":"https://openalex.org/F4320331430","display_name":"New South Wales Government","ror":"https://ror.org/0067dvq63"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W2064586097","https://openalex.org/W2116361875","https://openalex.org/W2117127313","https://openalex.org/W2133665775","https://openalex.org/W2136396015","https://openalex.org/W2137313943","https://openalex.org/W2137577808","https://openalex.org/W2153125455","https://openalex.org/W2153663612","https://openalex.org/W2155617382","https://openalex.org/W2160547390","https://openalex.org/W2169449614"],"related_works":["https://openalex.org/W2131925136","https://openalex.org/W3174287734","https://openalex.org/W2053392299","https://openalex.org/W4236446707","https://openalex.org/W2017241944","https://openalex.org/W2122800398","https://openalex.org/W2779986522","https://openalex.org/W2784261531","https://openalex.org/W1624194054","https://openalex.org/W2025482256"],"abstract_inverted_index":{"Imaging":[0],"in":[1,30,176],"low":[2],"light":[3,35,54,158],"is":[4,18],"problematic":[5],"as":[6],"sensor":[7],"noise":[8,48,166],"can":[9],"dominate":[10],"imagery,":[11],"and":[12,74,79,104,129,136,168,175],"increasing":[13],"illumination":[14],"or":[15,22],"aperture":[16,188],"size":[17],"not":[19],"always":[20],"effective":[21],"practical.":[23],"Computational":[24],"photography":[25],"offers":[26,43],"a":[27,57,61,72,75,81,91,108,130,150,171],"promising":[28],"solution":[29],"the":[31,34,53,69,99,118,142,183],"form":[32],"of":[33,56,66,71,132,146,173],"field":[36,55,159],"camera,":[37,114],"which":[38],"by":[39],"capturing":[40],"redundant":[41],"information":[42],"an":[44],"opportunity":[45],"for":[46,156,164],"elegant":[47],"rejection.":[49],"We":[50,140,161],"show":[51,141,181],"that":[52,117,182],"Lambertian":[58],"scene":[59],"has":[60],"4D":[62],"hyperfan-shaped":[63],"frequency-domain":[64],"region":[65],"support":[67],"at":[68],"intersection":[70],"dual-fan":[73],"hypercone.":[76],"By":[77],"designing":[78],"implementing":[80],"filter":[82,154],"with":[83,90,187],"appropriately":[84],"shaped":[85],"passband":[86],"we":[87,115,180],"accomplish":[88],"denoising":[89,138,153],"single":[92],"all-in-focus":[93,152],"linear":[94],"filter.":[95],"Drawing":[96],"examples":[97],"from":[98],"Stanford":[100],"Light":[101],"Field":[102],"Archive":[103],"images":[105],"captured":[106],"using":[107],"commercially":[109],"available":[110],"lenselet-":[111],"based":[112],"plenoptic":[113],"demonstrate":[116],"hyperfan":[119,143],"outperforms":[120],"competing":[121],"methods":[122],"including":[123],"synthetic":[124],"focus,":[125],"fan-shaped":[126],"antialiasing":[127],"filters,":[128],"range":[131],"modern":[133],"nonlinear":[134],"image":[135],"video":[137],"techniques.":[139],"preserves":[144],"depth":[145],"field,":[147],"making":[148],"it":[149],"single-step":[151],"suitable":[155],"general-purpose":[157],"rendering.":[160],"include":[162],"results":[163],"different":[165],"types":[167],"levels,":[169],"over":[170],"variety":[172],"metrics,":[174],"real-world":[177],"scenarios.":[178],"Finally,":[179],"hyperfan\u2019s":[184],"performance":[185],"scales":[186],"count.":[189]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":4},{"year":2019,"cited_by_count":8},{"year":2018,"cited_by_count":7},{"year":2017,"cited_by_count":6},{"year":2016,"cited_by_count":7},{"year":2015,"cited_by_count":3},{"year":2014,"cited_by_count":3},{"year":2013,"cited_by_count":4}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}