{"id":"https://openalex.org/W2000808840","doi":"https://doi.org/10.1117/1.2774830","title":"Effects of nonlinear camera response function in spatial domain depth-from-defocus","display_name":"Effects of nonlinear camera response function in spatial domain depth-from-defocus","publication_year":2007,"publication_date":"2007-07-01","ids":{"openalex":"https://openalex.org/W2000808840","doi":"https://doi.org/10.1117/1.2774830","mag":"2000808840"},"language":"en","primary_location":{"id":"doi:10.1117/1.2774830","is_oa":false,"landing_page_url":"https://doi.org/10.1117/1.2774830","pdf_url":null,"source":{"id":"https://openalex.org/S158511090","display_name":"Journal of Electronic Imaging","issn_l":"1017-9909","issn":["1017-9909","1560-229X"],"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":"Journal of Electronic Imaging","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/A5043124347","display_name":"Soon-Yong Park","orcid":"https://orcid.org/0000-0001-5090-9667"},"institutions":[{"id":"https://openalex.org/I31419693","display_name":"Kyungpook National University","ror":"https://ror.org/040c17130","country_code":"KR","type":"education","lineage":["https://openalex.org/I31419693"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Soon-Yong Park","raw_affiliation_strings":["Kyungpook National Univ. (South Korea)","Kyungpook National University, Department of Computer Engineering, Daegu 702-701, Korea"],"affiliations":[{"raw_affiliation_string":"Kyungpook National Univ. (South Korea)","institution_ids":["https://openalex.org/I31419693"]},{"raw_affiliation_string":"Kyungpook National University, Department of Computer Engineering, Daegu 702-701, Korea","institution_ids":["https://openalex.org/I31419693"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5043124347"],"corresponding_institution_ids":["https://openalex.org/I31419693"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.1316081,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"16","issue":"3","first_page":"033021","last_page":"033021"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13114","display_name":"Image Processing Techniques and Applications","score":0.9998999834060669,"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":0.9998999834060669,"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":0.9947999715805054,"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/T11569","display_name":"Optical Coherence Tomography Applications","score":0.9896000027656555,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical Engineering"},"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/nonlinear-system","display_name":"Nonlinear system","score":0.6572914123535156},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6488875150680542},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5891349911689758},{"id":"https://openalex.org/keywords/piecewise-linear-function","display_name":"Piecewise linear function","score":0.5458505749702454},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5040680170059204},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.494961678981781},{"id":"https://openalex.org/keywords/digital-camera","display_name":"Digital camera","score":0.45840930938720703},{"id":"https://openalex.org/keywords/compensation","display_name":"Compensation (psychology)","score":0.4329715967178345},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.41690582036972046},{"id":"https://openalex.org/keywords/image-sensor","display_name":"Image sensor","score":0.41649600863456726},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.34078294038772583},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.26455891132354736},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.09303620457649231},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.07933858036994934}],"concepts":[{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.6572914123535156},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6488875150680542},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5891349911689758},{"id":"https://openalex.org/C17095337","wikidata":"https://www.wikidata.org/wiki/Q2375229","display_name":"Piecewise linear function","level":2,"score":0.5458505749702454},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5040680170059204},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.494961678981781},{"id":"https://openalex.org/C2779705975","wikidata":"https://www.wikidata.org/wiki/Q62927","display_name":"Digital camera","level":2,"score":0.45840930938720703},{"id":"https://openalex.org/C2780023022","wikidata":"https://www.wikidata.org/wiki/Q1338171","display_name":"Compensation (psychology)","level":2,"score":0.4329715967178345},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.41690582036972046},{"id":"https://openalex.org/C76935873","wikidata":"https://www.wikidata.org/wiki/Q209121","display_name":"Image sensor","level":2,"score":0.41649600863456726},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.34078294038772583},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.26455891132354736},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.09303620457649231},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.07933858036994934},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C11171543","wikidata":"https://www.wikidata.org/wiki/Q41630","display_name":"Psychoanalysis","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1117/1.2774830","is_oa":false,"landing_page_url":"https://doi.org/10.1117/1.2774830","pdf_url":null,"source":{"id":"https://openalex.org/S158511090","display_name":"Journal of Electronic Imaging","issn_l":"1017-9909","issn":["1017-9909","1560-229X"],"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":"Journal of Electronic Imaging","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W1598264398","https://openalex.org/W2020546964","https://openalex.org/W2047736581","https://openalex.org/W2069281566","https://openalex.org/W2096099694","https://openalex.org/W2100992603","https://openalex.org/W2103802376","https://openalex.org/W2124545674","https://openalex.org/W2129917377","https://openalex.org/W2132817297","https://openalex.org/W2133132458","https://openalex.org/W2143789285","https://openalex.org/W2163687016","https://openalex.org/W2167008120","https://openalex.org/W2743830987","https://openalex.org/W4236229596"],"related_works":["https://openalex.org/W2379084545","https://openalex.org/W2365687337","https://openalex.org/W2358180351","https://openalex.org/W2392368077","https://openalex.org/W2365082216","https://openalex.org/W2388018705","https://openalex.org/W2362703586","https://openalex.org/W2899370199","https://openalex.org/W2171928853","https://openalex.org/W3008091216"],"abstract_inverted_index":{"Most":[0],"digital":[1,50],"cameras":[2],"incorporate":[3],"nonlinear":[4,22,45,69,127],"mapping":[5,23],"from":[6],"the":[7,40,44,65,68,77,91,116,122,126,134],"amount":[8],"of":[9,31,43,48,67,82,115,121,125,133],"light":[10],"falling":[11],"onto":[12],"an":[13],"imaging":[14],"sensor":[15],"to":[16,63,89,101],"a":[17,49,102],"picture's":[18],"intensity.":[19],"However,":[20],"this":[21],"would":[24],"cause":[25],"problems":[26],"in":[27,53],"some":[28],"linear":[29,104],"operations":[30],"image":[32],"processing":[33],"such":[34],"as":[35],"depth-from-defocus":[36],"(DFD).":[37],"We":[38],"address":[39],"erroneous":[41],"effects":[42,66],"response":[46,79,92,96,128],"function":[47,97,129],"still":[51],"camera":[52,78,135],"DFD.":[54],"A":[55],"spatial-domain":[56],"DFD":[57,73,108],"technique":[58],"called":[59],"S-transform":[60,117],"is":[61,98],"employed":[62,88],"present":[64],"mapping.":[70],"To":[71,106],"enhance":[72],"performance,":[74,109],"we":[75,110],"undistort":[76],"function.":[80,93,105],"Comparagrams":[81],"differently":[83],"exposed":[84],"multiple":[85],"images":[86],"are":[87],"estimate":[90],"The":[94],"estimated":[95],"then":[99],"fitted":[100],"piecewise":[103],"compare":[107],"use":[111],"four":[112],"different":[113],"approaches":[114],"for":[118],"automatic":[119],"focusing":[120],"camera.":[123],"Compensation":[124],"enhances":[130],"AF":[131],"performance":[132],"and":[136],"estimates":[137],"blur":[138],"parameters":[139],"more":[140],"accurately.":[141]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}