{"id":"https://openalex.org/W2159471757","doi":"https://doi.org/10.1109/tip.2002.1014994","title":"Two stage principal component analysis of color","display_name":"Two stage principal component analysis of color","publication_year":2002,"publication_date":"2002-06-01","ids":{"openalex":"https://openalex.org/W2159471757","doi":"https://doi.org/10.1109/tip.2002.1014994","mag":"2159471757","pmid":"https://pubmed.ncbi.nlm.nih.gov/18244661"},"language":"en","primary_location":{"id":"doi:10.1109/tip.2002.1014994","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2002.1014994","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Image Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"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/A5005222066","display_name":"Reiner Lenz","orcid":"https://orcid.org/0000-0001-7557-4904"},"institutions":[{"id":"https://openalex.org/I102134673","display_name":"Link\u00f6ping University","ror":"https://ror.org/05ynxx418","country_code":"SE","type":"education","lineage":["https://openalex.org/I102134673"]}],"countries":["SE"],"is_corresponding":true,"raw_author_name":"R. Lenz","raw_affiliation_strings":["Media Group, Linkoping Univ., Norrkoping, Sweden. reile@itn.liu.se","Media Group Campus Norrk\u00f6ping, Link\u00f6ping University, Norrkoping, Sweden"],"affiliations":[{"raw_affiliation_string":"Media Group, Linkoping Univ., Norrkoping, Sweden. reile@itn.liu.se","institution_ids":["https://openalex.org/I102134673"]},{"raw_affiliation_string":"Media Group Campus Norrk\u00f6ping, Link\u00f6ping University, Norrkoping, Sweden","institution_ids":["https://openalex.org/I102134673"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":["https://openalex.org/A5005222066"],"corresponding_institution_ids":["https://openalex.org/I102134673"],"apc_list":null,"apc_paid":null,"fwci":2.1628,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.87812044,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"11","issue":"6","first_page":"630","last_page":"635"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11666","display_name":"Color Science and Applications","score":0.9993000030517578,"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"}},"topics":[{"id":"https://openalex.org/T11666","display_name":"Color Science and Applications","score":0.9993000030517578,"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/T10640","display_name":"Spectroscopy and Chemometric Analyses","score":0.9940000176429749,"subfield":{"id":"https://openalex.org/subfields/1602","display_name":"Analytical Chemistry"},"field":{"id":"https://openalex.org/fields/16","display_name":"Chemistry"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.974399983882904,"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/chromaticity","display_name":"Chromaticity","score":0.74985271692276},{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"Principal component analysis","score":0.7224640846252441},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5968352556228638},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5524588227272034},{"id":"https://openalex.org/keywords/eigenvalues-and-eigenvectors","display_name":"Eigenvalues and eigenvectors","score":0.5337821841239929},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.5289759039878845},{"id":"https://openalex.org/keywords/basis","display_name":"Basis (linear algebra)","score":0.5110998749732971},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.48977160453796387},{"id":"https://openalex.org/keywords/color-space","display_name":"Color space","score":0.4852140247821808},{"id":"https://openalex.org/keywords/hyperspace","display_name":"Hyperspace","score":0.48465901613235474},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3005601167678833},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.17974460124969482},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.17461153864860535},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.1167820394039154},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.11327686905860901}],"concepts":[{"id":"https://openalex.org/C201780734","wikidata":"https://www.wikidata.org/wiki/Q5069880","display_name":"Chromaticity","level":2,"score":0.74985271692276},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.7224640846252441},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5968352556228638},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5524588227272034},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.5337821841239929},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.5289759039878845},{"id":"https://openalex.org/C12426560","wikidata":"https://www.wikidata.org/wiki/Q189569","display_name":"Basis (linear algebra)","level":2,"score":0.5110998749732971},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.48977160453796387},{"id":"https://openalex.org/C2961294","wikidata":"https://www.wikidata.org/wiki/Q166863","display_name":"Color space","level":3,"score":0.4852140247821808},{"id":"https://openalex.org/C39368324","wikidata":"https://www.wikidata.org/wiki/Q5024959","display_name":"Hyperspace","level":2,"score":0.48465901613235474},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3005601167678833},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.17974460124969482},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.17461153864860535},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.1167820394039154},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.11327686905860901},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tip.2002.1014994","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2002.1014994","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Image Processing","raw_type":"journal-article"},{"id":"pmid:18244661","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/18244661","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE transactions on image processing : a publication of the IEEE Signal Processing Society","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W125224264","https://openalex.org/W1964378272","https://openalex.org/W1987721959","https://openalex.org/W2065176680","https://openalex.org/W2081881941","https://openalex.org/W2095932195","https://openalex.org/W2137186219","https://openalex.org/W2153542861","https://openalex.org/W2169467627","https://openalex.org/W6605073050"],"related_works":["https://openalex.org/W2392092009","https://openalex.org/W4226309072","https://openalex.org/W4200175829","https://openalex.org/W2369717929","https://openalex.org/W2089438780","https://openalex.org/W2393779390","https://openalex.org/W2052921746","https://openalex.org/W1990008064","https://openalex.org/W2783133052","https://openalex.org/W3000541886"],"abstract_inverted_index":{"We":[0,107],"introduce":[1],"a":[2,19,29,36,75],"two-stage":[3,110],"analysis":[4,116],"of":[5,18,28,49,66,78,102,122,131],"color":[6,30,44,68,103],"spectra.":[7],"In":[8,32,70],"the":[9,15,26,33,43,47,64,67,83,89,100,120,123,129],"first":[10,16,52],"processing":[11],"stage,":[12],"correlation":[13],"with":[14,51,112],"eigenvector":[17,53],"spectral":[20],"database":[21],"is":[22,39,80,86,97,105],"used":[23,40],"to":[24,41,46,56,128],"measure":[25],"intensity":[27],"spectrum.":[31,69],"second":[34,76],"step,":[35],"perspective":[37],"projection":[38,73],"map":[42],"spectrum":[45,85],"hyperspace":[48,62],"spectra":[50,104],"coefficient":[54],"equal":[55],"unity.":[57],"The":[58],"location":[59],"in":[60,91],"this":[61,71,92,109],"describes":[63],"chromaticity":[65,93,133],"new":[72,124],"space,":[74],"basis":[77],"eigenvectors":[79],"computed":[81],"and":[82,117],"projected":[84],"described":[87],"by":[88],"expansion":[90],"basis.":[94],"This":[95],"description":[96],"possible":[98],"since":[99],"space":[101],"conical.":[106],"compare":[108],"process":[111],"traditional":[113,132,136],"principal":[114,137],"component":[115,138],"find":[118],"that":[119],"results":[121],"structure":[125,130],"are":[126],"closer":[127],"descriptors":[134],"than":[135],"analysis.":[139]},"counts_by_year":[{"year":2020,"cited_by_count":1}],"updated_date":"2026-01-13T01:12:25.745995","created_date":"2025-10-10T00:00:00"}