{"id":"https://openalex.org/W2471473658","doi":null,"title":"Detection of free-form objects using appearance-based local features","display_name":"Detection of free-form objects using appearance-based local features","publication_year":2007,"publication_date":"2007-08-09","ids":{"openalex":"https://openalex.org/W2471473658","mag":"2471473658"},"language":"en","primary_location":{"id":"mag:2471473658","doi":null,"is_oa":false,"landing_page_url":"http://dl.acm.org/citation.cfm?id=1659224","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null},"volume":null,"type":"article","is_traditional":true,"indexed_in":[],"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/A5090537084","display_name":"Mar\u00eda Asunci\u00f3n Vicente","orcid":"https://orcid.org/0000-0002-8630-7251","observed_orcids":["https://orcid.org/0000-0002-8630-7251"]},"institutions":[{"id":"https://openalex.org/I111262870","display_name":"Universitat de Miguel Hern\u00e1ndez d'Elx","ror":"https://ror.org/01azzms13","country_code":"ES","type":"education","lineage":["https://openalex.org/I111262870"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Mar\u00eda Asunci\u00f3n Vicente","raw_affiliation_strings":["Miguel Hernandez University, Elche, Alicante, Spain#TAB#"],"raw_orcid":"https://orcid.org/0000-0002-8630-7251","affiliations":[{"raw_affiliation_string":"Miguel Hernandez University, Elche, Alicante, Spain#TAB#","institution_ids":["https://openalex.org/I111262870"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039271173","display_name":"C\u00e9sar Fern\u00e1ndez","orcid":"https://orcid.org/0000-0002-9391-9192","observed_orcids":["https://orcid.org/0000-0002-9391-9192"]},"institutions":[{"id":"https://openalex.org/I111262870","display_name":"Universitat de Miguel Hern\u00e1ndez d'Elx","ror":"https://ror.org/01azzms13","country_code":"ES","type":"education","lineage":["https://openalex.org/I111262870"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"C\u00e9sar Fern\u00e1ndez","raw_affiliation_strings":["Miguel Hernandez University, Elche, Alicante, Spain#TAB#"],"raw_orcid":"https://orcid.org/0000-0002-9391-9192","affiliations":[{"raw_affiliation_string":"Miguel Hernandez University, Elche, Alicante, Spain#TAB#","institution_ids":["https://openalex.org/I111262870"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051019965","display_name":"Luis Pay\u00e1","orcid":"https://orcid.org/0000-0002-3045-4316","observed_orcids":["https://orcid.org/0000-0002-3045-4316"]},"institutions":[{"id":"https://openalex.org/I111262870","display_name":"Universitat de Miguel Hern\u00e1ndez d'Elx","ror":"https://ror.org/01azzms13","country_code":"ES","type":"education","lineage":["https://openalex.org/I111262870"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Luis Pay\u00e1","raw_affiliation_strings":["Miguel Hernandez University, Elche, Alicante, Spain#TAB#"],"raw_orcid":"https://orcid.org/0000-0002-3045-4316","affiliations":[{"raw_affiliation_string":"Miguel Hernandez University, Elche, Alicante, Spain#TAB#","institution_ids":["https://openalex.org/I111262870"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5102732003","display_name":"Arturo Gil","orcid":"https://orcid.org/0000-0001-7811-8955","observed_orcids":["https://orcid.org/0000-0001-7811-8955"]},"institutions":[{"id":"https://openalex.org/I111262870","display_name":"Universitat de Miguel Hern\u00e1ndez d'Elx","ror":"https://ror.org/01azzms13","country_code":"ES","type":"education","lineage":["https://openalex.org/I111262870"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Arturo Gil","raw_affiliation_strings":["Miguel Hernandez University, Elche, Alicante, Spain#TAB#"],"raw_orcid":"https://orcid.org/0000-0001-7811-8955","affiliations":[{"raw_affiliation_string":"Miguel Hernandez University, Elche, Alicante, Spain#TAB#","institution_ids":["https://openalex.org/I111262870"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I111262870"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.0,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"295","last_page":"300"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9330999851226807,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9330999851226807,"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/T10036","display_name":"Advanced Neural Network Applications","score":0.02319999970495701,"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.010099999606609344,"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/local-features","display_name":"local features","score":0.8029999732971191},{"id":"https://openalex.org/keywords/principal-component-analysis","display_name":"principal component analysis","score":0.9589999914169312},{"id":"https://openalex.org/keywords/channel-weighting","display_name":"channel weighting","score":0.8130000233650208},{"id":"https://openalex.org/keywords/unstructured-environments","display_name":"unstructured environments","score":0.7889999747276306}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7628573179244995},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.6630276441574097},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6448169946670532},{"id":"https://openalex.org/C2776151529","wikidata":"https://www.wikidata.org/wiki/Q3045304","display_name":"Object detection","level":3,"score":0.6418094038963318},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6408876180648804},{"id":"https://openalex.org/C183115368","wikidata":"https://www.wikidata.org/wiki/Q856577","display_name":"Weighting","level":2,"score":0.6233824491500854},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6147145628929138},{"id":"https://openalex.org/C27438332","wikidata":"https://www.wikidata.org/wiki/Q2873","display_name":"Principal component analysis","level":2,"score":0.5733032822608948},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.5514272451400757},{"id":"https://openalex.org/C2776401178","wikidata":"https://www.wikidata.org/wiki/Q12050496","display_name":"Feature (linguistics)","level":2,"score":0.5169369578361511},{"id":"https://openalex.org/C152671427","wikidata":"https://www.wikidata.org/wiki/Q10843505","display_name":"Non-negative matrix factorization","level":4,"score":0.477678120136261},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.47289741039276123},{"id":"https://openalex.org/C71924100","wikidata":"https://www.wikidata.org/wiki/Q11190","display_name":"Medicine","level":0,"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/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C126838900","wikidata":"https://www.wikidata.org/wiki/Q77604","display_name":"Radiology","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C158693339","wikidata":"https://www.wikidata.org/wiki/Q190524","display_name":"Eigenvalues and eigenvectors","level":2,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:2471473658","doi":null,"is_oa":false,"landing_page_url":"http://dl.acm.org/citation.cfm?id=1659224","pdf_url":null,"source":null,"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W21441819","https://openalex.org/W2037090920","https://openalex.org/W2113341759","https://openalex.org/W2118718620","https://openalex.org/W2122283348","https://openalex.org/W2138451337","https://openalex.org/W2142961876","https://openalex.org/W2145023731","https://openalex.org/W2159686933","https://openalex.org/W2217896605"],"related_works":["https://openalex.org/W21441819","https://openalex.org/W7099132690","https://openalex.org/W1993393131","https://openalex.org/W7095650845","https://openalex.org/W2383855217","https://openalex.org/W117886176","https://openalex.org/W7095506864","https://openalex.org/W7038040697","https://openalex.org/W2326271715","https://openalex.org/W1594194724"],"abstract_inverted_index":{"An":[0,54],"appearance":[1],"based":[2],"object":[3,78],"detection":[4,13,69],"system":[5],"is":[6,11,26,71],"presented,":[7],"whose":[8],"main":[9],"goal":[10],"the":[12,77],"of":[14,57],"free-form":[15],"objects":[16,64],"in":[17],"non":[18],"structured":[19],"environments.":[20],"A":[21],"multichannel":[22],"and":[23,46],"multiscale":[24],"approach":[25],"used.":[27],"Two":[28],"different":[29,63],"feature":[30],"extraction":[31],"methods":[32],"are":[33],"combined":[34],"to":[35,61,79],"generate":[36],"a":[37],"model":[38],"for":[39],"each":[40],"object:":[41],"Principal":[42],"Component":[43],"Analysis":[44],"(PCA)":[45],"Non-negative":[47],"Matrix":[48],"Factorization":[49],"with":[50,65],"Sparsity":[51],"Constraints":[52],"(NMFSC).":[53],"object-dependant":[55],"adjustment":[56],"channel":[58],"weighting":[59],"allows":[60],"detect":[62],"high":[66],"accuracy.":[67],"The":[68],"threshold":[70],"also":[72],"automatically":[73],"adjusted":[74],"depending":[75],"on":[76],"be":[80],"detected.":[81]},"counts_by_year":[],"updated_date":"2026-09-21T07:43:02.447757","created_date":"2016-07-22T00:00:00"}
