{"id":"https://openalex.org/W2072572797","doi":"https://doi.org/10.1145/2683483.2683563","title":"Shape-from-focus using Total Variation Prior and Split Bregman algorithm","display_name":"Shape-from-focus using Total Variation Prior and Split Bregman algorithm","publication_year":2014,"publication_date":"2014-12-14","ids":{"openalex":"https://openalex.org/W2072572797","doi":"https://doi.org/10.1145/2683483.2683563","mag":"2072572797"},"language":"en","primary_location":{"id":"doi:10.1145/2683483.2683563","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2683483.2683563","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2014 Indian Conference on Computer Vision Graphics and Image Processing","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/A5090036763","display_name":"Devika S. Kumar","orcid":null},"institutions":[{"id":"https://openalex.org/I145894827","display_name":"Indian Institute of Technology Kharagpur","ror":"https://ror.org/03w5sq511","country_code":"IN","type":"education","lineage":["https://openalex.org/I145894827"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Druva Kumar CH","raw_affiliation_strings":["Center for Educational Technology, IIT Kharagpur, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Educational Technology, IIT Kharagpur, India","institution_ids":["https://openalex.org/I145894827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5022347289","display_name":"Vinod HI","orcid":null},"institutions":[{"id":"https://openalex.org/I145894827","display_name":"Indian Institute of Technology Kharagpur","ror":"https://ror.org/03w5sq511","country_code":"IN","type":"education","lineage":["https://openalex.org/I145894827"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Vinod HI","raw_affiliation_strings":["Center for Educational Technology, IIT Kharagpur, India"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Center for Educational Technology, IIT Kharagpur, India","institution_ids":["https://openalex.org/I145894827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5067927122","display_name":"Rajiv R. Sahay","orcid":"https://orcid.org/0000-0003-0820-0616"},"institutions":[{"id":"https://openalex.org/I145894827","display_name":"Indian Institute of Technology Kharagpur","ror":"https://ror.org/03w5sq511","country_code":"IN","type":"education","lineage":["https://openalex.org/I145894827"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Rajiv R. Sahay","raw_affiliation_strings":["School of Information Technology, Department of Electrical Engineering, IIT Kharagpur, India","School of Information Technology, Department of Electrical Engineering, IIT Kharagpur, India#TAB#"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information Technology, Department of Electrical Engineering, IIT Kharagpur, India","institution_ids":["https://openalex.org/I145894827"]},{"raw_affiliation_string":"School of Information Technology, Department of Electrical Engineering, IIT Kharagpur, India#TAB#","institution_ids":["https://openalex.org/I145894827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4587,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.71019838,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"7"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13114","display_name":"Image Processing Techniques and Applications","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T13114","display_name":"Image Processing Techniques and Applications","score":1.0,"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"}},{"id":"https://openalex.org/T11897","display_name":"Digital Holography and Microscopy","score":0.9876000285148621,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10638","display_name":"Optical measurement and interference techniques","score":0.9858999848365784,"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/focus","display_name":"Focus (optics)","score":0.6686884164810181},{"id":"https://openalex.org/keywords/minification","display_name":"Minification","score":0.5630600452423096},{"id":"https://openalex.org/keywords/regularization","display_name":"Regularization (linguistics)","score":0.5279021859169006},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5064505338668823},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4864754378795624},{"id":"https://openalex.org/keywords/total-variation-denoising","display_name":"Total variation denoising","score":0.4853917360305786},{"id":"https://openalex.org/keywords/norm","display_name":"Norm (philosophy)","score":0.4717177748680115},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.46807512640953064},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4642084240913391},{"id":"https://openalex.org/keywords/inverse-problem","display_name":"Inverse problem","score":0.45802128314971924},{"id":"https://openalex.org/keywords/variation","display_name":"Variation (astronomy)","score":0.4487003982067108},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.44142869114875793},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3567057251930237},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.28362810611724854},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.07132086157798767}],"concepts":[{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.6686884164810181},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.5630600452423096},{"id":"https://openalex.org/C2776135515","wikidata":"https://www.wikidata.org/wiki/Q17143721","display_name":"Regularization (linguistics)","level":2,"score":0.5279021859169006},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5064505338668823},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4864754378795624},{"id":"https://openalex.org/C207282899","wikidata":"https://www.wikidata.org/wiki/Q7828156","display_name":"Total variation denoising","level":3,"score":0.4853917360305786},{"id":"https://openalex.org/C191795146","wikidata":"https://www.wikidata.org/wiki/Q3878446","display_name":"Norm (philosophy)","level":2,"score":0.4717177748680115},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.46807512640953064},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4642084240913391},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.45802128314971924},{"id":"https://openalex.org/C2778334786","wikidata":"https://www.wikidata.org/wiki/Q1586270","display_name":"Variation (astronomy)","level":2,"score":0.4487003982067108},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.44142869114875793},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3567057251930237},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.28362810611724854},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.07132086157798767},{"id":"https://openalex.org/C199539241","wikidata":"https://www.wikidata.org/wiki/Q7748","display_name":"Law","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C17744445","wikidata":"https://www.wikidata.org/wiki/Q36442","display_name":"Political science","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2683483.2683563","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2683483.2683563","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 2014 Indian Conference on Computer Vision Graphics and Image Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4300000071525574,"id":"https://metadata.un.org/sdg/11","display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1554544485","https://openalex.org/W1570576005","https://openalex.org/W1787850458","https://openalex.org/W1963498916","https://openalex.org/W2001376739","https://openalex.org/W2031586513","https://openalex.org/W2039608780","https://openalex.org/W2086670019","https://openalex.org/W2128597272","https://openalex.org/W2129241867","https://openalex.org/W2142058898","https://openalex.org/W2143789285","https://openalex.org/W2149189207","https://openalex.org/W2166774562","https://openalex.org/W2168308200","https://openalex.org/W2168544812","https://openalex.org/W2913105986","https://openalex.org/W6633362792"],"related_works":["https://openalex.org/W2588406281","https://openalex.org/W1605636162","https://openalex.org/W1829060647","https://openalex.org/W2344001031","https://openalex.org/W1965977581","https://openalex.org/W2061980133","https://openalex.org/W2077506191","https://openalex.org/W2387685679","https://openalex.org/W2050855072","https://openalex.org/W4298004047"],"abstract_inverted_index":{"Shape-from-focus":[0],"is":[1,75,96],"a":[2,19,59],"method":[3,127],"which":[4],"estimates":[5],"the":[6,14,32,35,51,55,64,68,72,83,90,100,107,111],"3D":[7,38,73,113],"structure":[8],"of":[9,16,21,37,54,71,86,110],"an":[10,41,46],"object":[11],"by":[12,117],"measuring":[13],"degree":[15],"focus":[17],"in":[18,89],"stack":[20],"space-variantly":[22],"blurred":[23],"frames":[24],"captured":[25,87],"with":[26],"relative":[27],"motion":[28],"between":[29],"camera":[30],"and":[31,122],"specimen.":[33],"Posing":[34],"estimation":[36],"shape":[39],"as":[40,58],"inverse":[42],"problem":[43,104],"we":[44],"propose":[45],"elegant":[47],"optimization-based":[48],"framework":[49],"using":[50],"total":[52],"variation":[53],"depth":[56,108],"map":[57,109],"regularization":[60],"constraint.":[61],"We":[62,115],"make":[63],"reasonable":[65],"assumption":[66],"that":[67,125],"focused":[69],"image":[70],"specimen":[74],"available":[76],"since":[77],"it":[78],"can":[79,128],"be":[80],"reconstructed":[81],"from":[82],"large":[84],"number":[85],"images":[88],"stack.":[91],"The":[92],"split":[93],"Bregman":[94],"technique":[95],"used":[97],"to":[98,105,132],"solve":[99],"resulting":[101],"l1-norm":[102],"minimization":[103],"estimate":[106],"underlying":[112],"object.":[114],"show":[116],"experiments":[118],"on":[119],"various":[120],"synthetic":[121],"real":[123],"cases":[124],"our":[126],"yield":[129],"results":[130],"comparable":[131],"other":[133],"state-of-the-art":[134],"techniques.":[135]},"counts_by_year":[{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
