{"id":"https://openalex.org/W2994921959","doi":"https://doi.org/10.1109/lgrs.2019.2958262","title":"An Unsupervised Approach to Change Detection in Built-Up Areas by Multitemporal PolSAR Images","display_name":"An Unsupervised Approach to Change Detection in Built-Up Areas by Multitemporal PolSAR Images","publication_year":2019,"publication_date":"2019-12-18","ids":{"openalex":"https://openalex.org/W2994921959","doi":"https://doi.org/10.1109/lgrs.2019.2958262","mag":"2994921959"},"language":"en","primary_location":{"id":"doi:10.1109/lgrs.2019.2958262","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2019.2958262","pdf_url":null,"source":{"id":"https://openalex.org/S126920919","display_name":"IEEE Geoscience and Remote Sensing Letters","issn_l":"1545-598X","issn":["1545-598X","1558-0571"],"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 Geoscience and Remote Sensing Letters","raw_type":"journal-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/A5083201014","display_name":"Davide Pirrone","orcid":"https://orcid.org/0000-0002-9314-0832"},"institutions":[{"id":"https://openalex.org/I193223587","display_name":"University of Trento","ror":"https://ror.org/05trd4x28","country_code":"IT","type":"education","lineage":["https://openalex.org/I193223587"]},{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":true,"raw_author_name":"Davide Pirrone","raw_affiliation_strings":["Center for Communication and Information Technology, Fondazione Bruno Kessler, Trento, Italy","Department of Information Engineering and Computer Science, University of Trento, Trento, Italy"],"affiliations":[{"raw_affiliation_string":"Center for Communication and Information Technology, Fondazione Bruno Kessler, Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]},{"raw_affiliation_string":"Department of Information Engineering and Computer Science, University of Trento, Trento, Italy","institution_ids":["https://openalex.org/I193223587"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027352469","display_name":"Shaunak De","orcid":"https://orcid.org/0000-0002-2365-7756"},"institutions":[{"id":"https://openalex.org/I162827531","display_name":"Indian Institute of Technology Bombay","ror":"https://ror.org/02qyf5152","country_code":"IN","type":"education","lineage":["https://openalex.org/I162827531"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Shaunak De","raw_affiliation_strings":["Center of Studies in Resources Engineering, IIT Bombay, Mumbai, India"],"affiliations":[{"raw_affiliation_string":"Center of Studies in Resources Engineering, IIT Bombay, Mumbai, India","institution_ids":["https://openalex.org/I162827531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5057547054","display_name":"Avik Bhattacharya","orcid":"https://orcid.org/0000-0001-6720-6108"},"institutions":[{"id":"https://openalex.org/I162827531","display_name":"Indian Institute of Technology Bombay","ror":"https://ror.org/02qyf5152","country_code":"IN","type":"education","lineage":["https://openalex.org/I162827531"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Avik Bhattacharya","raw_affiliation_strings":["Center of Studies in Resources Engineering, IIT Bombay, Mumbai, India"],"affiliations":[{"raw_affiliation_string":"Center of Studies in Resources Engineering, IIT Bombay, Mumbai, India","institution_ids":["https://openalex.org/I162827531"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006095323","display_name":"Lorenzo Bruzzone","orcid":"https://orcid.org/0000-0002-6036-459X"},"institutions":[{"id":"https://openalex.org/I193223587","display_name":"University of Trento","ror":"https://ror.org/05trd4x28","country_code":"IT","type":"education","lineage":["https://openalex.org/I193223587"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Lorenzo Bruzzone","raw_affiliation_strings":["Department of Information Engineering and Computer Science, University of Trento, Trento, Italy"],"affiliations":[{"raw_affiliation_string":"Department of Information Engineering and Computer Science, University of Trento, Trento, Italy","institution_ids":["https://openalex.org/I193223587"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5087668203","display_name":"Francesca Bovolo","orcid":"https://orcid.org/0000-0003-3104-7656"},"institutions":[{"id":"https://openalex.org/I2277624104","display_name":"Fondazione Bruno Kessler","ror":"https://ror.org/01j33xk10","country_code":"IT","type":"facility","lineage":["https://openalex.org/I2277624104"]}],"countries":["IT"],"is_corresponding":false,"raw_author_name":"Francesca Bovolo","raw_affiliation_strings":["Center for Communication and Information Technology, Fondazione Bruno Kessler, Trento, Italy"],"affiliations":[{"raw_affiliation_string":"Center for Communication and Information Technology, Fondazione Bruno Kessler, Trento, Italy","institution_ids":["https://openalex.org/I2277624104"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5083201014"],"corresponding_institution_ids":["https://openalex.org/I193223587","https://openalex.org/I2277624104"],"apc_list":null,"apc_paid":null,"fwci":0.181,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.58724107,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"17","issue":"11","first_page":"1914","last_page":"1918"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10689","display_name":"Remote-Sensing Image Classification","score":0.9998000264167786,"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":0.9998000264167786,"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/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":0.9997000098228455,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"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/T12157","display_name":"Geochemistry and Geologic Mapping","score":0.9883000254631042,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/change-detection","display_name":"Change detection","score":0.8957144021987915},{"id":"https://openalex.org/keywords/thresholding","display_name":"Thresholding","score":0.7521920204162598},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.7038509249687195},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6423537731170654},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.5728119015693665},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5080220699310303},{"id":"https://openalex.org/keywords/radar-imaging","display_name":"Radar imaging","score":0.4825277030467987},{"id":"https://openalex.org/keywords/polarimetry","display_name":"Polarimetry","score":0.43809324502944946},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4017769694328308},{"id":"https://openalex.org/keywords/radar","display_name":"Radar","score":0.2949206829071045},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.22074756026268005},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.20205238461494446}],"concepts":[{"id":"https://openalex.org/C203595873","wikidata":"https://www.wikidata.org/wiki/Q25389927","display_name":"Change detection","level":2,"score":0.8957144021987915},{"id":"https://openalex.org/C191178318","wikidata":"https://www.wikidata.org/wiki/Q2256906","display_name":"Thresholding","level":3,"score":0.7521920204162598},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.7038509249687195},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6423537731170654},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.5728119015693665},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5080220699310303},{"id":"https://openalex.org/C10929652","wikidata":"https://www.wikidata.org/wiki/Q7279985","display_name":"Radar imaging","level":3,"score":0.4825277030467987},{"id":"https://openalex.org/C28493345","wikidata":"https://www.wikidata.org/wiki/Q899381","display_name":"Polarimetry","level":3,"score":0.43809324502944946},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4017769694328308},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.2949206829071045},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.22074756026268005},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.20205238461494446},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","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/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C191486275","wikidata":"https://www.wikidata.org/wiki/Q210028","display_name":"Scattering","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/lgrs.2019.2958262","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2019.2958262","pdf_url":null,"source":{"id":"https://openalex.org/S126920919","display_name":"IEEE Geoscience and Remote Sensing Letters","issn_l":"1545-598X","issn":["1545-598X","1558-0571"],"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 Geoscience and Remote Sensing Letters","raw_type":"journal-article"},{"id":"pmh:oai:iris.unitn.it:11572/278745","is_oa":false,"landing_page_url":"http://hdl.handle.net/11572/278745","pdf_url":null,"source":{"id":"https://openalex.org/S4306401913","display_name":"Institutional Research Information System (Universit\u00e0 degli Studi di Trento)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I193223587","host_organization_name":"University of Trento","host_organization_lineage":["https://openalex.org/I193223587"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/11","score":0.8299999833106995,"display_name":"Sustainable cities and communities"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1421632428","https://openalex.org/W1669730594","https://openalex.org/W2024849840","https://openalex.org/W2034073840","https://openalex.org/W2056946495","https://openalex.org/W2069550536","https://openalex.org/W2074866567","https://openalex.org/W2077547750","https://openalex.org/W2100024934","https://openalex.org/W2121348175","https://openalex.org/W2133989913","https://openalex.org/W2146075447","https://openalex.org/W2174393741","https://openalex.org/W2299851271","https://openalex.org/W2370317051","https://openalex.org/W2490087565","https://openalex.org/W2611890062","https://openalex.org/W2774513837"],"related_works":["https://openalex.org/W2164995725","https://openalex.org/W2469797871","https://openalex.org/W3205829146","https://openalex.org/W2545123933","https://openalex.org/W2585813813","https://openalex.org/W3110962985","https://openalex.org/W2042726296","https://openalex.org/W2081203575","https://openalex.org/W3016428515","https://openalex.org/W2096748030"],"abstract_inverted_index":{"Information":[0],"from":[1,45],"polarimetric":[2,68],"synthetic":[3],"aperture":[4],"radar":[5],"(PolSAR)":[6],"imagery":[7],"has":[8,20],"been":[9,21],"used":[10],"for":[11,24,38,78],"detecting":[12],"built-up":[13,42,84],"targets":[14],"in":[15,27],"classification":[16],"problems,":[17],"whereas":[18],"it":[19],"poorly":[22],"exploited":[23],"change":[25,60],"detection":[26,40,100],"multitemporal":[28,46,72,90],"images.":[29,48],"In":[30],"this":[31],"letter,":[32],"we":[33],"proposed":[34,77,96],"an":[35],"unsupervised":[36],"approach":[37,50,97],"the":[39,54,64,95,113],"of":[41,57,67,108],"changed":[43],"areas":[44],"full-polSAR":[47],"The":[49,74,86],"is":[51,76,111],"based":[52,62],"on":[53,63,89],"automatic":[55],"thresholding":[56],"a":[58],"novel":[59],"index":[61,75],"joint":[65],"use":[66],"span":[69],"and":[70,82,102],"average-alpha":[71],"information.":[73],"highlighting":[79],"both":[80],"constructed":[81],"demolished":[83],"elements.":[85],"experimental":[87],"results":[88],"UAVSAR":[91],"images":[92],"demonstrate":[93],"that":[94],"provides":[98],"high":[99],"accuracy":[101],"effectively":[103],"separates":[104],"among":[105],"different":[106],"types":[107],"changes,":[109],"which":[110],"not":[112],"case":[114],"with":[115],"standard":[116],"methods.":[117]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
