{"id":"https://openalex.org/W2133674021","doi":"https://doi.org/10.1109/icip.2008.4712009","title":"Image enhancement for improving face detection under non-uniform lighting conditions","display_name":"Image enhancement for improving face detection under non-uniform lighting conditions","publication_year":2008,"publication_date":"2008-01-01","ids":{"openalex":"https://openalex.org/W2133674021","doi":"https://doi.org/10.1109/icip.2008.4712009","mag":"2133674021"},"language":"en","primary_location":{"id":"doi:10.1109/icip.2008.4712009","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icip.2008.4712009","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 15th IEEE International Conference on 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/A5031084133","display_name":"Numan \u00dcnald\u0131","orcid":null},"institutions":[{"id":"https://openalex.org/I103087548","display_name":"Norfolk State University","ror":"https://ror.org/030pydv62","country_code":"US","type":"education","lineage":["https://openalex.org/I103087548"]},{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Numan Unaldi","raw_affiliation_strings":["Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA"],"affiliations":[{"raw_affiliation_string":"Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","institution_ids":["https://openalex.org/I103087548"]},{"raw_affiliation_string":"Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA","institution_ids":["https://openalex.org/I103087548","https://openalex.org/I1343180700"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027400263","display_name":"Praveen Sankaran","orcid":"https://orcid.org/0000-0003-2719-9788"},"institutions":[{"id":"https://openalex.org/I103087548","display_name":"Norfolk State University","ror":"https://ror.org/030pydv62","country_code":"US","type":"education","lineage":["https://openalex.org/I103087548"]},{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Praveen Sankaran","raw_affiliation_strings":["Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA"],"affiliations":[{"raw_affiliation_string":"Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","institution_ids":["https://openalex.org/I103087548"]},{"raw_affiliation_string":"Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA","institution_ids":["https://openalex.org/I103087548","https://openalex.org/I1343180700"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061050831","display_name":"Vijayan K. Asari","orcid":"https://orcid.org/0000-0002-3751-5492"},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I103087548","display_name":"Norfolk State University","ror":"https://ror.org/030pydv62","country_code":"US","type":"education","lineage":["https://openalex.org/I103087548"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Vijayan K. Asari","raw_affiliation_strings":["Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA"],"affiliations":[{"raw_affiliation_string":"Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","institution_ids":["https://openalex.org/I103087548"]},{"raw_affiliation_string":"Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA","institution_ids":["https://openalex.org/I103087548","https://openalex.org/I1343180700"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113455737","display_name":"Zia-ur Rahman","orcid":null},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]},{"id":"https://openalex.org/I103087548","display_name":"Norfolk State University","ror":"https://ror.org/030pydv62","country_code":"US","type":"education","lineage":["https://openalex.org/I103087548"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Zia-ur Rahman","raw_affiliation_strings":["Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA"],"affiliations":[{"raw_affiliation_string":"Computational Intelligence and Machine Vision Laboratory, ODU, Norfolk, VA, USA","institution_ids":["https://openalex.org/I103087548"]},{"raw_affiliation_string":"Comput. Intell. & Machine Vision Lab., ODU, Norfolk, VA","institution_ids":["https://openalex.org/I103087548","https://openalex.org/I1343180700"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5031084133"],"corresponding_institution_ids":["https://openalex.org/I103087548","https://openalex.org/I1343180700"],"apc_list":null,"apc_paid":null,"fwci":1.7559,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.86587462,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1332","last_page":"1335"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11019","display_name":"Image Enhancement Techniques","score":1.0,"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/T11019","display_name":"Image Enhancement Techniques","score":1.0,"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/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9997000098228455,"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":0.9968000054359436,"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/dynamic-range","display_name":"Dynamic range","score":0.6852661371231079},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.5914103388786316},{"id":"https://openalex.org/keywords/face","display_name":"Face (sociological concept)","score":0.5700987577438354},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.5140398740768433},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.48787832260131836},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4785531163215637},{"id":"https://openalex.org/keywords/range","display_name":"Range (aeronautics)","score":0.4705900251865387},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4173157811164856},{"id":"https://openalex.org/keywords/dynamic-range-compression","display_name":"Dynamic range compression","score":0.41382110118865967},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.3764173984527588},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.37538397312164307},{"id":"https://openalex.org/keywords/materials-science","display_name":"Materials science","score":0.1852591335773468}],"concepts":[{"id":"https://openalex.org/C87133666","wikidata":"https://www.wikidata.org/wiki/Q1161699","display_name":"Dynamic range","level":2,"score":0.6852661371231079},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.5914103388786316},{"id":"https://openalex.org/C2779304628","wikidata":"https://www.wikidata.org/wiki/Q3503480","display_name":"Face (sociological concept)","level":2,"score":0.5700987577438354},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.5140398740768433},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.48787832260131836},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4785531163215637},{"id":"https://openalex.org/C204323151","wikidata":"https://www.wikidata.org/wiki/Q905424","display_name":"Range (aeronautics)","level":2,"score":0.4705900251865387},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4173157811164856},{"id":"https://openalex.org/C150178126","wikidata":"https://www.wikidata.org/wiki/Q18433212","display_name":"Dynamic range compression","level":2,"score":0.41382110118865967},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3764173984527588},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.37538397312164307},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.1852591335773468},{"id":"https://openalex.org/C144024400","wikidata":"https://www.wikidata.org/wiki/Q21201","display_name":"Sociology","level":0,"score":0.0},{"id":"https://openalex.org/C159985019","wikidata":"https://www.wikidata.org/wiki/Q181790","display_name":"Composite material","level":1,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C36289849","wikidata":"https://www.wikidata.org/wiki/Q34749","display_name":"Social science","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icip.2008.4712009","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icip.2008.4712009","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2008 15th IEEE International Conference on Image Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.44999998807907104}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2060488209","https://openalex.org/W2108472730","https://openalex.org/W2121900453","https://openalex.org/W2137659841","https://openalex.org/W2146086273","https://openalex.org/W2147421915","https://openalex.org/W2150721269","https://openalex.org/W3097096317"],"related_works":["https://openalex.org/W2077021924","https://openalex.org/W3114966213","https://openalex.org/W1964261467","https://openalex.org/W4306405983","https://openalex.org/W2132528877","https://openalex.org/W2043206197","https://openalex.org/W839122472","https://openalex.org/W1989295720","https://openalex.org/W4310810219","https://openalex.org/W2525745698"],"abstract_inverted_index":{"A":[0],"new":[1],"wavelet-based":[2],"image":[3],"enhancement":[4,37,63,110],"algorithm":[5,38,94],"is":[6,24,39,64],"proposed":[7,93],"to":[8,42,75,84,107],"improve":[9],"performance":[10,99],"of":[11,70,100],"face":[12,103],"detection":[13],"in":[14],"non-uniform":[15],"lighting":[16],"environment":[17],"with":[18,34,73],"high":[19],"dynamic":[20,31,59],"range.":[21],"Wavelet":[22],"transform":[23],"used":[25],"for":[26],"dimension":[27],"reduction":[28],"so":[29],"that":[30],"range":[32,60],"compression":[33],"local":[35],"contrast":[36],"applied":[40],"only":[41],"the":[43,68,86,92,98,101],"approximation":[44,48],"coefficients.":[45],"The":[46,78],"normalized":[47],"coefficients":[49,80],"are":[50,81],"transformed":[51],"using":[52],"a":[53],"hyperbolic":[54],"sine":[55],"curve":[56],"which":[57],"achieves":[58],"compression.":[61],"Contrast":[62],"realized":[65],"by":[66],"tuning":[67],"magnitude":[69],"each":[71],"coefficient":[72],"respect":[74],"its":[76],"surroundings.":[77],"detail":[79],"also":[82],"modified":[83],"prevent":[85],"edge":[87],"deformation.":[88],"Experimental":[89],"results":[90],"on":[91,97],"show":[95],"improvement":[96],"Viola-Jones":[102],"detector":[104],"when":[105],"compared":[106],"other":[108],"prominent":[109],"techniques.":[111]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":5},{"year":2014,"cited_by_count":4},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}