{"id":"https://openalex.org/W3206980649","doi":"https://doi.org/10.1109/igarss47720.2021.9553366","title":"A Penalization-Based NMF Approach for Hyperspectral Unmixing Addressing Spectral Variability with an Additively-Tuned Mixing Model","display_name":"A Penalization-Based NMF Approach for Hyperspectral Unmixing Addressing Spectral Variability with an Additively-Tuned Mixing Model","publication_year":2021,"publication_date":"2021-07-11","ids":{"openalex":"https://openalex.org/W3206980649","doi":"https://doi.org/10.1109/igarss47720.2021.9553366","mag":"3206980649"},"language":"en","primary_location":{"id":"doi:10.1109/igarss47720.2021.9553366","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9553366","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","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/A5006196718","display_name":"Salah Eddine Brezini","orcid":"https://orcid.org/0000-0002-3192-0681"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555"]},{"id":"https://openalex.org/I17866349","display_name":"Universit\u00e9 F\u00e9d\u00e9rale de Toulouse Midi-Pyr\u00e9n\u00e9es","ror":"https://ror.org/004raaa70","country_code":"FR","type":"education","lineage":["https://openalex.org/I17866349"]},{"id":"https://openalex.org/I3124969661","display_name":"Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf","ror":"https://ror.org/02nbj1r55","country_code":"DZ","type":"education","lineage":["https://openalex.org/I3124969661"]}],"countries":["DZ","FR"],"is_corresponding":false,"raw_author_name":"Salah Eddine Brezini","raw_affiliation_strings":["IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","institution_ids":["https://openalex.org/I17866349","https://openalex.org/I134560555","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie","institution_ids":["https://openalex.org/I3124969661"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079357805","display_name":"Yannick Deville","orcid":"https://orcid.org/0000-0002-8769-2446"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555"]},{"id":"https://openalex.org/I17866349","display_name":"Universit\u00e9 F\u00e9d\u00e9rale de Toulouse Midi-Pyr\u00e9n\u00e9es","ror":"https://ror.org/004raaa70","country_code":"FR","type":"education","lineage":["https://openalex.org/I17866349"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Yannick Deville","raw_affiliation_strings":["IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","institution_ids":["https://openalex.org/I17866349","https://openalex.org/I134560555","https://openalex.org/I1294671590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5070761189","display_name":"Moussa Sofiane Karoui","orcid":"https://orcid.org/0000-0001-6223-4863"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555"]},{"id":"https://openalex.org/I17866349","display_name":"Universit\u00e9 F\u00e9d\u00e9rale de Toulouse Midi-Pyr\u00e9n\u00e9es","ror":"https://ror.org/004raaa70","country_code":"FR","type":"education","lineage":["https://openalex.org/I17866349"]},{"id":"https://openalex.org/I3124969661","display_name":"Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf","ror":"https://ror.org/02nbj1r55","country_code":"DZ","type":"education","lineage":["https://openalex.org/I3124969661"]},{"id":"https://openalex.org/I4210140819","display_name":"CRSTRA","ror":"https://ror.org/056ahff07","country_code":"DZ","type":"facility","lineage":["https://openalex.org/I4210140819"]}],"countries":["DZ","FR"],"is_corresponding":false,"raw_author_name":"Moussa Sofiane Karoui","raw_affiliation_strings":["Agence Spatiale Alg\u00e9rienne, Centre des Techniques Spatiales, Arzew, Alg\u00e9rie","IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agence Spatiale Alg\u00e9rienne, Centre des Techniques Spatiales, Arzew, Alg\u00e9rie","institution_ids":["https://openalex.org/I4210140819"]},{"raw_affiliation_string":"IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","institution_ids":["https://openalex.org/I17866349","https://openalex.org/I134560555","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie","institution_ids":["https://openalex.org/I3124969661"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013540980","display_name":"Fatima Zohra Benhalouche","orcid":"https://orcid.org/0000-0003-2606-7011"},"institutions":[{"id":"https://openalex.org/I1294671590","display_name":"Centre National de la Recherche Scientifique","ror":"https://ror.org/02feahw73","country_code":"FR","type":"government","lineage":["https://openalex.org/I1294671590"]},{"id":"https://openalex.org/I134560555","display_name":"Universit\u00e9 Toulouse III - Paul Sabatier","ror":"https://ror.org/02v6kpv12","country_code":"FR","type":"education","lineage":["https://openalex.org/I134560555"]},{"id":"https://openalex.org/I17866349","display_name":"Universit\u00e9 F\u00e9d\u00e9rale de Toulouse Midi-Pyr\u00e9n\u00e9es","ror":"https://ror.org/004raaa70","country_code":"FR","type":"education","lineage":["https://openalex.org/I17866349"]},{"id":"https://openalex.org/I3124969661","display_name":"Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf","ror":"https://ror.org/02nbj1r55","country_code":"DZ","type":"education","lineage":["https://openalex.org/I3124969661"]},{"id":"https://openalex.org/I4210140819","display_name":"CRSTRA","ror":"https://ror.org/056ahff07","country_code":"DZ","type":"facility","lineage":["https://openalex.org/I4210140819"]}],"countries":["DZ","FR"],"is_corresponding":false,"raw_author_name":"Fatima Zohra Benhalouche","raw_affiliation_strings":["Agence Spatiale Alg\u00e9rienne, Centre des Techniques Spatiales, Arzew, Alg\u00e9rie","IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agence Spatiale Alg\u00e9rienne, Centre des Techniques Spatiales, Arzew, Alg\u00e9rie","institution_ids":["https://openalex.org/I4210140819"]},{"raw_affiliation_string":"IRAP, Universit\u00e9 de Toulouse, UPS, CNRS, OMP, CNES, Toulouse, France","institution_ids":["https://openalex.org/I17866349","https://openalex.org/I134560555","https://openalex.org/I1294671590"]},{"raw_affiliation_string":"LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie","institution_ids":["https://openalex.org/I3124969661"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5043793362","display_name":"Abdelaziz Ouamri","orcid":"https://orcid.org/0000-0002-9359-7592"},"institutions":[{"id":"https://openalex.org/I3124969661","display_name":"Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf","ror":"https://ror.org/02nbj1r55","country_code":"DZ","type":"education","lineage":["https://openalex.org/I3124969661"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Abdelaziz Ouamri","raw_affiliation_strings":["LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"LSI, Universit\u00e9 des Sciences et de la Technologie d'Oran Mohamed Boudiaf, Oran, Alg\u00e9rie","institution_ids":["https://openalex.org/I3124969661"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.2654,"has_fulltext":false,"cited_by_count":17,"citation_normalized_percentile":{"value":0.82418169,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"3841","last_page":"3844"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":1.0,"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/T10689","display_name":"Remote-Sensing Image Classification","score":1.0,"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/T13890","display_name":"Remote Sensing and Land Use","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1902","display_name":"Atmospheric Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9944999814033508,"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/endmember","display_name":"Endmember","score":0.964542031288147},{"id":"https://openalex.org/keywords/hyperspectral-imaging","display_name":"Hyperspectral imaging","score":0.9107357859611511},{"id":"https://openalex.org/keywords/non-negative-matrix-factorization","display_name":"Non-negative matrix factorization","score":0.8637689352035522},{"id":"https://openalex.org/keywords/mixing","display_name":"Mixing (physics)","score":0.7130799293518066},{"id":"https://openalex.org/keywords/spectral-signature","display_name":"Spectral signature","score":0.6814233064651489},{"id":"https://openalex.org/keywords/multiplicative-function","display_name":"Multiplicative function","score":0.6705560088157654},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5239924788475037},{"id":"https://openalex.org/keywords/matrix-decomposition","display_name":"Matrix decomposition","score":0.5196298956871033},{"id":"https://openalex.org/keywords/pixel","display_name":"Pixel","score":0.47472724318504333},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4518265128135681},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.44646453857421875},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4039716124534607},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3272721767425537},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.2174217700958252},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10242623090744019},{"id":"https://openalex.org/keywords/geography","display_name":"Geography","score":0.09844911098480225}],"concepts":[{"id":"https://openalex.org/C58237817","wikidata":"https://www.wikidata.org/wiki/Q5376204","display_name":"Endmember","level":3,"score":0.964542031288147},{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.9107357859611511},{"id":"https://openalex.org/C152671427","wikidata":"https://www.wikidata.org/wiki/Q10843505","display_name":"Non-negative matrix factorization","level":4,"score":0.8637689352035522},{"id":"https://openalex.org/C138777275","wikidata":"https://www.wikidata.org/wiki/Q6884054","display_name":"Mixing (physics)","level":2,"score":0.7130799293518066},{"id":"https://openalex.org/C176641082","wikidata":"https://www.wikidata.org/wiki/Q2446767","display_name":"Spectral signature","level":2,"score":0.6814233064651489},{"id":"https://openalex.org/C42747912","wikidata":"https://www.wikidata.org/wiki/Q1048447","display_name":"Multiplicative function","level":2,"score":0.6705560088157654},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5239924788475037},{"id":"https://openalex.org/C42355184","wikidata":"https://www.wikidata.org/wiki/Q1361088","display_name":"Matrix decomposition","level":3,"score":0.5196298956871033},{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.47472724318504333},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4518265128135681},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.44646453857421875},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4039716124534607},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3272721767425537},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.2174217700958252},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10242623090744019},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.09844911098480225},{"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/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","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}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/igarss47720.2021.9553366","is_oa":false,"landing_page_url":"https://doi.org/10.1109/igarss47720.2021.9553366","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.5699999928474426,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W1246381107","https://openalex.org/W1524571335","https://openalex.org/W1755563775","https://openalex.org/W1972293418","https://openalex.org/W2037328426","https://openalex.org/W2127062304","https://openalex.org/W2157321686","https://openalex.org/W2163886442","https://openalex.org/W2415341181","https://openalex.org/W2519798539","https://openalex.org/W2755992512","https://openalex.org/W2963788037","https://openalex.org/W2964144928","https://openalex.org/W2973382313","https://openalex.org/W2979671667","https://openalex.org/W2988402027","https://openalex.org/W3034122404","https://openalex.org/W3101012758","https://openalex.org/W3158864640","https://openalex.org/W4392677642","https://openalex.org/W6795206868"],"related_works":["https://openalex.org/W2089298795","https://openalex.org/W2773002387","https://openalex.org/W1980988957","https://openalex.org/W2802800261","https://openalex.org/W2766484909","https://openalex.org/W2163867257","https://openalex.org/W1992367803","https://openalex.org/W2059578032","https://openalex.org/W2898368675","https://openalex.org/W2374719179"],"abstract_inverted_index":{"Remote":[0],"sensing":[1],"hyperspectral":[2],"sensors":[3],"are":[4,151,172],"often":[5],"limited":[6],"in":[7,48,60],"their":[8,29],"spatial":[9],"resolutions,":[10],"which":[11],"leads":[12],"to":[13,24,106,153,189],"mixed":[14],"pixels.":[15],"The":[16,32,185],"linear":[17,34,93],"spectral":[18,46,66,135,149],"unmixing":[19,104,177],"process":[20,178],"is":[21,41,57],"frequently":[22],"used":[23],"extract":[25],"endmember":[26,40,70],"spectra":[27],"and":[28,124,164,168],"abundance":[30],"fractions.":[31],"standard":[33],"mixing":[35,94,162],"model":[36],"considers":[37],"that":[38,132,144],"each":[39],"represented":[42],"by":[43,81,129,196],"the":[44,49,65,83,134,138,148,154,159,176,180],"same":[45,160],"signature":[47,67],"entire":[50],"image.":[51],"However,":[52],"such":[53],"a":[54,90,119],"basic":[55],"hypothesis":[56],"not":[58],"relevant":[59],"most":[61],"practical":[62],"situations":[63],"since":[64],"of":[68,85,87],"an":[69,102],"can":[71,78],"spatially":[72],"vary.":[73],"This":[74],"intra-class":[75],"variability":[76,150],"phenomenon":[77,182],"be":[79,190],"considered":[80,155,181],"introducing":[82],"concept":[84],"classes":[86],"endmembers.":[88],"Recently,":[89],"structured":[91,161],"additively-tuned":[92],"model,":[95,163],"with":[96,101,122],"its":[97],"constraints,":[98],"was":[99],"proposed,":[100],"associated":[103],"method,":[105,111],"address":[107],"this":[108],"phenomenon.":[109],"That":[110],"based":[112,199],"on":[113,200],"Nonnegative":[114],"Matrix":[115],"Factorization":[116],"(NMF),":[117],"optimizes":[118],"cost":[120,156],"function":[121],"iterative":[123,167],"multiplicative":[125,169],"update":[126,170],"rules":[127,171],"supplemented":[128],"additional":[130],"constraints":[131],"control":[133],"variability.":[136],"In":[137],"present":[139],"work,":[140],"two":[141],"penalization":[142],"terms":[143],"more":[145],"efficiently":[146],"manage":[147],"added":[152],"function,":[157],"for":[158,174],"new":[165],"NMF-based":[166],"deduced":[173],"achieving":[175],"taking":[179],"into":[183],"account.":[184],"proposed":[186],"algorithm":[187],"proves":[188],"very":[191],"attractive":[192],"as":[193],"clearly":[194],"reported":[195],"conducted":[197],"experiments":[198],"synthetic":[201],"data.":[202]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2}],"updated_date":"2026-06-19T17:40:00.097472","created_date":"2025-10-10T00:00:00"}