{"id":"https://openalex.org/W2098910604","doi":"https://doi.org/10.1109/icme.2008.4607494","title":"Automatic opacity detection in retro-illumination images for cortical cataract diagnosis","display_name":"Automatic opacity detection in retro-illumination images for cortical cataract diagnosis","publication_year":2008,"publication_date":"2008-06-01","ids":{"openalex":"https://openalex.org/W2098910604","doi":"https://doi.org/10.1109/icme.2008.4607494","mag":"2098910604"},"language":"en","primary_location":{"id":"doi:10.1109/icme.2008.4607494","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icme.2008.4607494","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 IEEE International Conference on Multimedia and Expo","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/A5100778076","display_name":"Huiqi Li","orcid":"https://orcid.org/0000-0002-8720-3374"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":true,"raw_author_name":"Huiqi Li","raw_affiliation_strings":["A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore"],"affiliations":[{"raw_affiliation_string":"A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017024903","display_name":"Liling Ko","orcid":null},"institutions":[{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]},{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Liling Ko","raw_affiliation_strings":["A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore","Department of Electrical & Computer Engineering, National University of Singapore"],"affiliations":[{"raw_affiliation_string":"A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]},{"raw_affiliation_string":"Department of Electrical & Computer Engineering, National University of Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5023838707","display_name":"Jong\u2010Hwan Lim","orcid":"https://orcid.org/0000-0002-8524-8974"},"institutions":[{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]},{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Joo Hwee Lim","raw_affiliation_strings":["A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore"],"affiliations":[{"raw_affiliation_string":"A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100325209","display_name":"Jiang Liu","orcid":"https://orcid.org/0000-0001-6281-6505"},"institutions":[{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]},{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Jiang Liu","raw_affiliation_strings":["A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore"],"affiliations":[{"raw_affiliation_string":"A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5015497605","display_name":"Damon Wing Kee Wong","orcid":"https://orcid.org/0000-0003-4601-9121"},"institutions":[{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]},{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Damon Wing Kee Wong","raw_affiliation_strings":["A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore"],"affiliations":[{"raw_affiliation_string":"A*STAR(Agency for Science, Technology and Research), Institute for Infocomm Research, Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5072258594","display_name":"Tien Yin Wong","orcid":"https://orcid.org/0000-0002-8448-1264"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]},{"id":"https://openalex.org/I4210116917","display_name":"Singapore Eye Research Institute","ror":"https://ror.org/02crz6e12","country_code":"SG","type":"facility","lineage":["https://openalex.org/I4210116917"]},{"id":"https://openalex.org/I2799299286","display_name":"Singapore National Eye Center","ror":"https://ror.org/029nvrb94","country_code":"SG","type":"healthcare","lineage":["https://openalex.org/I2799299286"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Tien Yin Wong","raw_affiliation_strings":["National University of Singapore, Singapore Eye Research Institute"],"affiliations":[{"raw_affiliation_string":"National University of Singapore, Singapore Eye Research Institute","institution_ids":["https://openalex.org/I2799299286","https://openalex.org/I165932596","https://openalex.org/I4210116917"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100649794","display_name":"Ying Sun","orcid":"https://orcid.org/0000-0002-7224-6726"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Ying Sun","raw_affiliation_strings":["Department of Electrical & Computer Engineering, National University of Singapore"],"affiliations":[{"raw_affiliation_string":"Department of Electrical & Computer Engineering, National University of Singapore","institution_ids":["https://openalex.org/I165932596"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5100778076"],"corresponding_institution_ids":["https://openalex.org/I115228651","https://openalex.org/I3005327000"],"apc_list":null,"apc_paid":null,"fwci":0.9096,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.77631853,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"553","last_page":"556"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10250","display_name":"Glaucoma and retinal disorders","score":0.9972000122070312,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10250","display_name":"Glaucoma and retinal disorders","score":0.9972000122070312,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11291","display_name":"Intraocular Surgery and Lenses","score":0.9965999722480774,"subfield":{"id":"https://openalex.org/subfields/2731","display_name":"Ophthalmology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T11438","display_name":"Retinal Imaging and Analysis","score":0.958299994468689,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.7155032157897949},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6469306349754333},{"id":"https://openalex.org/keywords/opacity","display_name":"Opacity","score":0.646468460559845},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6433240175247192},{"id":"https://openalex.org/keywords/ellipse","display_name":"Ellipse","score":0.6111761927604675},{"id":"https://openalex.org/keywords/pupil","display_name":"Pupil","score":0.6020432710647583},{"id":"https://openalex.org/keywords/edge-detection","display_name":"Edge detection","score":0.5341260433197021},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4556787610054016},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.42288118600845337},{"id":"https://openalex.org/keywords/convolutional-neural-network","display_name":"Convolutional neural network","score":0.4159086048603058},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.2641023099422455},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.18539679050445557},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.12147501111030579},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.11523443460464478}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7155032157897949},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6469306349754333},{"id":"https://openalex.org/C60056205","wikidata":"https://www.wikidata.org/wiki/Q691914","display_name":"Opacity","level":2,"score":0.646468460559845},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6433240175247192},{"id":"https://openalex.org/C74261601","wikidata":"https://www.wikidata.org/wiki/Q40112","display_name":"Ellipse","level":2,"score":0.6111761927604675},{"id":"https://openalex.org/C2777394604","wikidata":"https://www.wikidata.org/wiki/Q173318","display_name":"Pupil","level":2,"score":0.6020432710647583},{"id":"https://openalex.org/C193536780","wikidata":"https://www.wikidata.org/wiki/Q1513153","display_name":"Edge detection","level":4,"score":0.5341260433197021},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4556787610054016},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.42288118600845337},{"id":"https://openalex.org/C81363708","wikidata":"https://www.wikidata.org/wiki/Q17084460","display_name":"Convolutional neural network","level":2,"score":0.4159086048603058},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.2641023099422455},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.18539679050445557},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.12147501111030579},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.11523443460464478},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","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}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/icme.2008.4607494","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icme.2008.4607494","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 IEEE International Conference on Multimedia and Expo","raw_type":"proceedings-article"},{"id":"pmh:oai:scholarbank.nus.edu.sg:10635/26647","is_oa":false,"landing_page_url":"http://scholarbank.nus.edu.sg/handle/10635/26647","pdf_url":null,"source":{"id":"https://openalex.org/S7407052290","display_name":"National University of Singapore","issn_l":null,"issn":[],"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Scopus","raw_type":"Conference Paper"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4","score":0.6000000238418579}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1571426111","https://openalex.org/W1606426186","https://openalex.org/W1967480110","https://openalex.org/W2038835377","https://openalex.org/W2099838434","https://openalex.org/W2106879392","https://openalex.org/W2129638913","https://openalex.org/W2144059446","https://openalex.org/W6679065807"],"related_works":["https://openalex.org/W2371136327","https://openalex.org/W4293234107","https://openalex.org/W2161791806","https://openalex.org/W2370549269","https://openalex.org/W2386824811","https://openalex.org/W2073474947","https://openalex.org/W2354618530","https://openalex.org/W4366824690","https://openalex.org/W2613656770","https://openalex.org/W2110614960"],"abstract_inverted_index":{"Computer":[0],"aided":[1],"analysis":[2],"of":[3,9,81,89,100,107,127],"medical":[4],"images,":[5],"a":[6],"unique":[7],"type":[8],"non-text":[10],"media,":[11],"can":[12],"facilitate":[13],"clinical":[14,150],"diagnosis.":[15],"As":[16],"an":[17,19],"example,":[18],"automatic":[20,36,70,125],"opacity":[21,60,90,134],"detection":[22,38,66,83,92,126],"approach":[23,148],"is":[24,39,61,84,93,113,121,142],"proposed":[25,147],"in":[26,123],"this":[27],"paper":[28],"to":[29,130,144,149],"grade":[30],"cortical":[31,59,108,128],"cataract":[32,76,109,129],"more":[33],"objectively.":[34],"The":[35,58,69,79,86,136],"pupil":[37,82],"performed":[40],"by":[41,63],"detecting":[42],"the":[43,47,98,114,118,124,146],"strongest":[44],"edges":[45],"on":[46],"convex":[48],"hull":[49],"and":[50,67],"ellipse":[51],"fitting":[52],"using":[53],"nonlinear":[54],"least":[55],"square":[56],"method.":[57],"detected":[62],"radial":[64],"edge":[65],"post-processing.":[68],"grades":[71,106],"are":[72,110],"assigned":[73],"following":[74],"Wisconsin":[75],"grading":[77],"protocol.":[78],"accuracy":[80],"98.2%.":[85],"mean":[87],"error":[88],"area":[91],"7":[94],"percent":[95],"compared":[96],"with":[97],"result":[99],"human":[101],"grader.":[102],"And":[103],"86.3%":[104],"accurate":[105],"achieved.":[111],"This":[112],"first":[115],"time":[116],"that":[117,140],"spoke-like":[119],"feature":[120],"utilized":[122],"separate":[131],"from":[132],"other":[133],"types.":[135],"encouraging":[137],"results":[138],"show":[139],"it":[141],"probable":[143],"apply":[145],"diagnosis":[151],"later.":[152]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":4},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2012,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}