{"id":"https://openalex.org/W4407900637","doi":"https://doi.org/10.1109/tgrs.2025.3544755","title":"FSGformer: Frequency Separation and Guidance Transformer for Pansharpening","display_name":"FSGformer: Frequency Separation and Guidance Transformer for Pansharpening","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4407900637","doi":"https://doi.org/10.1109/tgrs.2025.3544755"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2025.3544755","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2025.3544755","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"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 Geoscience and Remote Sensing","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/A5087070984","display_name":"Qian Liu","orcid":"https://orcid.org/0000-0001-6880-4599"},"institutions":[{"id":"https://openalex.org/I87445476","display_name":"Xi'an Jiaotong University","ror":"https://ror.org/017zhmm22","country_code":"CN","type":"education","lineage":["https://openalex.org/I87445476"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qian Liu","raw_affiliation_strings":["School of Mathematics and Statistics, Xi&#x2019;an Jiaotong University, Xi&#x2019;an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mathematics and Statistics, Xi&#x2019;an Jiaotong University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I87445476"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049946979","display_name":"Xiangyu Zhao","orcid":"https://orcid.org/0000-0002-9095-4494"},"institutions":[{"id":"https://openalex.org/I87445476","display_name":"Xi'an Jiaotong University","ror":"https://ror.org/017zhmm22","country_code":"CN","type":"education","lineage":["https://openalex.org/I87445476"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiangyu Zhao","raw_affiliation_strings":["School of Mathematics and Statistics, Xi&#x2019;an Jiaotong University, Xi&#x2019;an, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Mathematics and Statistics, Xi&#x2019;an Jiaotong University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I87445476"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034729053","display_name":"You Qin","orcid":"https://orcid.org/0009-0009-2880-1022"},"institutions":[{"id":"https://openalex.org/I165932596","display_name":"National University of Singapore","ror":"https://ror.org/01tgyzw49","country_code":"SG","type":"education","lineage":["https://openalex.org/I165932596"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"You Qin","raw_affiliation_strings":["School of Computing, National University of Singapore, Cluny Road, Singapore","School of Computing, National University of Singapore, Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computing, National University of Singapore, Cluny Road, Singapore","institution_ids":["https://openalex.org/I165932596"]},{"raw_affiliation_string":"School of Computing, National University of Singapore, Singapore","institution_ids":["https://openalex.org/I165932596"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101583497","display_name":"Lanyu Li","orcid":"https://orcid.org/0000-0003-1189-3820"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Lanyu Li","raw_affiliation_strings":["National Key Laboratory of Radar Detection and Sensing, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Key Laboratory of Radar Detection and Sensing, Nanjing, China","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5014312349","display_name":"Junmin Liu","orcid":"https://orcid.org/0000-0002-1462-7248"},"institutions":[{"id":"https://openalex.org/I87445476","display_name":"Xi'an Jiaotong University","ror":"https://ror.org/017zhmm22","country_code":"CN","type":"education","lineage":["https://openalex.org/I87445476"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junmin Liu","raw_affiliation_strings":["School of Mathematics and Statistics, Xi&#x2019;an Jiaotong University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-1462-7248","affiliations":[{"raw_affiliation_string":"School of Mathematics and Statistics, Xi&#x2019;an Jiaotong University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I87445476"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.8506,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.84452333,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":"63","issue":null,"first_page":"1","last_page":"16"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10205","display_name":"Advanced Fiber Optic Sensors","score":0.9731000065803528,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"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/T10205","display_name":"Advanced Fiber Optic Sensors","score":0.9731000065803528,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T14158","display_name":"Optical Systems and Laser Technology","score":0.9448999762535095,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic 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/T13493","display_name":"Optical and Acousto-Optic Technologies","score":0.929099977016449,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5210632681846619},{"id":"https://openalex.org/keywords/separation","display_name":"Separation (statistics)","score":0.4362075626850128},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.36538591980934143},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.17147499322891235},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.10362711548805237}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5210632681846619},{"id":"https://openalex.org/C2776061190","wikidata":"https://www.wikidata.org/wiki/Q7451805","display_name":"Separation (statistics)","level":2,"score":0.4362075626850128},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.36538591980934143},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.17147499322891235},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.10362711548805237}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2025.3544755","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2025.3544755","pdf_url":null,"source":{"id":"https://openalex.org/S111326731","display_name":"IEEE Transactions on Geoscience and Remote Sensing","issn_l":"0196-2892","issn":["0196-2892","1558-0644"],"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 Geoscience and Remote Sensing","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Affordable and clean energy","score":0.6399999856948853,"id":"https://metadata.un.org/sdg/7"}],"awards":[{"id":"https://openalex.org/G3102977780","display_name":null,"funder_award_id":"62293552","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4210075541","display_name":null,"funder_award_id":"62276208","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G4976875354","display_name":null,"funder_award_id":"2024JC-JCQN-02","funder_id":"https://openalex.org/F4320336567","funder_display_name":"Natural Science Basic Research Program of Shaanxi Province"},{"id":"https://openalex.org/G6748661587","display_name":null,"funder_award_id":"12326607","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320336567","display_name":"Natural Science Basic Research Program of Shaanxi Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":88,"referenced_works":["https://openalex.org/W1247035941","https://openalex.org/W1653130573","https://openalex.org/W1885185971","https://openalex.org/W1966035399","https://openalex.org/W1986629820","https://openalex.org/W1991460509","https://openalex.org/W1998030312","https://openalex.org/W2002660867","https://openalex.org/W2022075948","https://openalex.org/W2025653905","https://openalex.org/W2064366277","https://openalex.org/W2100329651","https://openalex.org/W2111924917","https://openalex.org/W2112693869","https://openalex.org/W2114770744","https://openalex.org/W2124743705","https://openalex.org/W2129953395","https://openalex.org/W2132984323","https://openalex.org/W2133665775","https://openalex.org/W2140499889","https://openalex.org/W2144436897","https://openalex.org/W2171211028","https://openalex.org/W2172185514","https://openalex.org/W2339428543","https://openalex.org/W2394774286","https://openalex.org/W2462592242","https://openalex.org/W2562637781","https://openalex.org/W2603834682","https://openalex.org/W2777033955","https://openalex.org/W2889626069","https://openalex.org/W2900923896","https://openalex.org/W2947324203","https://openalex.org/W2963007295","https://openalex.org/W3011456574","https://openalex.org/W3023991509","https://openalex.org/W3034175346","https://openalex.org/W3096904276","https://openalex.org/W3097824737","https://openalex.org/W3115223653","https://openalex.org/W3126857817","https://openalex.org/W3138516171","https://openalex.org/W3172472472","https://openalex.org/W3181737610","https://openalex.org/W3187059854","https://openalex.org/W3197818647","https://openalex.org/W3200410745","https://openalex.org/W3206049508","https://openalex.org/W4213185605","https://openalex.org/W4225672218","https://openalex.org/W4225982893","https://openalex.org/W4226068212","https://openalex.org/W4229058281","https://openalex.org/W4231697575","https://openalex.org/W4249676513","https://openalex.org/W4283814658","https://openalex.org/W4285106784","https://openalex.org/W4288391574","https://openalex.org/W4289515279","https://openalex.org/W4292508218","https://openalex.org/W4304013729","https://openalex.org/W4306411454","https://openalex.org/W4312340363","https://openalex.org/W4312774460","https://openalex.org/W4313071068","https://openalex.org/W4366995839","https://openalex.org/W4379033772","https://openalex.org/W4385245566","https://openalex.org/W4385413338","https://openalex.org/W4385452953","https://openalex.org/W4385686499","https://openalex.org/W4386076504","https://openalex.org/W4386266673","https://openalex.org/W4386424895","https://openalex.org/W4387880970","https://openalex.org/W4391992568","https://openalex.org/W4392909612","https://openalex.org/W4393149604","https://openalex.org/W4394938955","https://openalex.org/W4395017489","https://openalex.org/W4403420962","https://openalex.org/W6623043969","https://openalex.org/W6631230401","https://openalex.org/W6677463967","https://openalex.org/W6685078114","https://openalex.org/W6755609140","https://openalex.org/W6774054309","https://openalex.org/W6791353385","https://openalex.org/W6870764994"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2071676784","https://openalex.org/W2376932109","https://openalex.org/W2001405890"],"abstract_inverted_index":{"Pansharpening":[0],"is":[1,222],"a":[2,97,137,159,165,176,198],"crucial":[3],"task":[4],"in":[5,41,48],"remote":[6],"sensing":[7],"image":[8],"processing,":[9],"aiming":[10],"to":[11,64,83,128,147,181,204],"generate":[12],"high-resolution":[13,24],"multispectral":[14,20],"(HRMS)":[15],"images":[16,22,45],"by":[17],"fusing":[18],"low-resolution":[19],"(LRMS)":[21],"with":[23],"panchromatic":[25],"(PAN)":[26],"images.":[27],"However,":[28],"most":[29],"current":[30],"deep":[31],"learning":[32,56,87],"methods":[33,62],"for":[34,126],"pansharpening":[35,127],"rarely":[36],"consider":[37],"the":[38,72,109,144,150,183,213],"frequency":[39,52,60,75,89,99,123,153,188,200],"differences":[40,110],"PAN":[42],"and":[43,54,76,85,101,111,115,168,172,215],"MS":[44],"effectively,":[46],"resulting":[47],"harmful":[49],"mixing":[50],"of":[51,57,71,80,88,152,186,217],"information":[53],"inefficient":[55],"features.":[58],"Furthermore,":[59],"separation-based":[61],"continue":[63],"face":[65],"challenges":[66],"such":[67],"as":[68],"insufficient":[69],"consideration":[70],"relationship":[73],"between":[74,113,131],"spatial":[77,167],"information,":[78,189],"amplification":[79],"noise":[81],"due":[82],"separation,":[84],"inadequate":[86],"information.":[90,154],"To":[91],"address":[92],"these":[93],"problems,":[94],"we":[95,119,135,157,196],"propose":[96],"novel":[98,160],"separation":[100,201],"guidance":[102,140],"Transformer,":[103],"named":[104],"FSGformer,":[105],"which":[106],"focuses":[107],"on":[108],"interactions":[112],"high-":[114],"low-frequency":[116],"components.":[117],"Specifically,":[118],"design":[120],"an":[121],"adaptive":[122],"separator":[124],"tailored":[125],"effectively":[129],"differentiate":[130],"distinct":[132],"frequencies.":[133],"Subsequently,":[134],"develop":[136],"carefully":[138],"designed":[139],"module":[141,162],"that":[142,163],"enables":[143],"fusion":[145],"process":[146],"benefit":[148],"from":[149],"interaction":[151],"In":[155],"addition,":[156],"introduce":[158],"Transformer":[161],"features":[164],"joint":[166],"spectral":[169],"attention":[170],"mechanism":[171],"integrate":[173],"it":[174],"into":[175],"meticulously":[177],"crafted":[178],"network":[179],"architecture":[180],"support":[182],"effective":[184],"representation":[185],"different":[187],"thereby":[190],"generating":[191],"high-quality":[192],"fused":[193],"results.":[194],"Moreover,":[195],"incorporate":[197],"hybrid":[199],"(HFS)":[202],"loss":[203],"enhance":[205],"overall":[206],"performance.":[207],"Extensive":[208],"experimental":[209],"evaluations":[210],"have":[211],"confirmed":[212],"superiority":[214],"generality":[216],"our":[218],"FSGformer.":[219],"The":[220],"code":[221],"available":[223],"at":[224],"<uri":[225],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[226],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">https://github.com/lqrscode/FSGformer</uri>.":[227]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2}],"updated_date":"2025-12-28T23:10:05.387466","created_date":"2025-10-10T00:00:00"}