{"id":"https://openalex.org/W4412802188","doi":"https://doi.org/10.1109/lsp.2025.3594593","title":"Channel-Reduced Transformer With Cross-Region Tokenization for Hyperspectral Image Classification","display_name":"Channel-Reduced Transformer With Cross-Region Tokenization for Hyperspectral Image Classification","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4412802188","doi":"https://doi.org/10.1109/lsp.2025.3594593"},"language":"en","primary_location":{"id":"doi:10.1109/lsp.2025.3594593","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2025.3594593","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"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 Signal Processing 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/A5061913887","display_name":"Zhe Meng","orcid":"https://orcid.org/0000-0002-2364-2749"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhe Meng","raw_affiliation_strings":["School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0002-2364-2749","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","institution_ids":["https://openalex.org/I4210136859"]},{"raw_affiliation_string":"School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109750639","display_name":"Taizheng Zhang","orcid":null},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Taizheng Zhang","raw_affiliation_strings":["School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China"],"raw_orcid":"https://orcid.org/0009-0004-6889-911X","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","institution_ids":["https://openalex.org/I4210136859"]},{"raw_affiliation_string":"School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100706940","display_name":"Feng Zhao","orcid":"https://orcid.org/0000-0002-0323-9573"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Feng Zhao","raw_affiliation_strings":["School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0002-0323-9573","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","institution_ids":["https://openalex.org/I4210136859"]},{"raw_affiliation_string":"School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Wenqiang Hua","orcid":"https://orcid.org/0000-0003-2611-6194"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenqiang Hua","raw_affiliation_strings":["School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China"],"raw_orcid":"https://orcid.org/0000-0003-2611-6194","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","institution_ids":["https://openalex.org/I4210136859"]},{"raw_affiliation_string":"School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"last","author":{"id":null,"display_name":"Tian Sun","orcid":"https://orcid.org/0009-0003-2122-7992"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tian Sun","raw_affiliation_strings":["School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China"],"raw_orcid":"https://orcid.org/0009-0003-2122-7992","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi’an University of Posts and Telecommunications, Xi’an, China","institution_ids":["https://openalex.org/I4210136859"]},{"raw_affiliation_string":"School of Communications and Information Engineering, Xi'an University of Posts and Telecommunications, Xi'an, China","institution_ids":["https://openalex.org/I4210136859"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I4210136859"],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":2.3011,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.88482728,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"32","issue":null,"first_page":"3112","last_page":"3116"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11324","display_name":"Spectroscopy Techniques in Biomedical and Chemical Research","score":0.902899980545044,"subfield":{"id":"https://openalex.org/subfields/1304","display_name":"Biophysics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}},"topics":[{"id":"https://openalex.org/T11324","display_name":"Spectroscopy Techniques in Biomedical and Chemical Research","score":0.902899980545044,"subfield":{"id":"https://openalex.org/subfields/1304","display_name":"Biophysics"},"field":{"id":"https://openalex.org/fields/13","display_name":"Biochemistry, Genetics and Molecular Biology"},"domain":{"id":"https://openalex.org/domains/1","display_name":"Life Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/hyperspectral-imaging","display_name":"Hyperspectral imaging","score":0.8571397066116333},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6297686100006104},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6014003753662109},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4793734848499298},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4753819704055786},{"id":"https://openalex.org/keywords/transformer","display_name":"Transformer","score":0.45196399092674255},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.11709624528884888},{"id":"https://openalex.org/keywords/voltage","display_name":"Voltage","score":0.0894433856010437}],"concepts":[{"id":"https://openalex.org/C159078339","wikidata":"https://www.wikidata.org/wiki/Q959005","display_name":"Hyperspectral imaging","level":2,"score":0.8571397066116333},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6297686100006104},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6014003753662109},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4793734848499298},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4753819704055786},{"id":"https://openalex.org/C66322947","wikidata":"https://www.wikidata.org/wiki/Q11658","display_name":"Transformer","level":3,"score":0.45196399092674255},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.11709624528884888},{"id":"https://openalex.org/C165801399","wikidata":"https://www.wikidata.org/wiki/Q25428","display_name":"Voltage","level":2,"score":0.0894433856010437},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lsp.2025.3594593","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2025.3594593","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"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 Signal Processing Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":21,"referenced_works":["https://openalex.org/W3035414587","https://openalex.org/W3044657819","https://openalex.org/W3094502228","https://openalex.org/W3125449611","https://openalex.org/W3214821343","https://openalex.org/W4285127355","https://openalex.org/W4296339430","https://openalex.org/W4297094428","https://openalex.org/W4319069095","https://openalex.org/W4319303918","https://openalex.org/W4321484009","https://openalex.org/W4385413338","https://openalex.org/W4386266673","https://openalex.org/W4392903274","https://openalex.org/W4394938955","https://openalex.org/W4404101424","https://openalex.org/W4406611003","https://openalex.org/W4406856751","https://openalex.org/W4409537021","https://openalex.org/W4410115947","https://openalex.org/W4412081524"],"related_works":["https://openalex.org/W2772917594","https://openalex.org/W2036807459","https://openalex.org/W2058170566","https://openalex.org/W2755342338","https://openalex.org/W2166024367","https://openalex.org/W3116076068","https://openalex.org/W2229312674","https://openalex.org/W2951359407","https://openalex.org/W2079911747","https://openalex.org/W1969923398"],"abstract_inverted_index":{"Transformers":[0],"have":[1],"been":[2],"widely":[3],"adopted":[4],"in":[5,20],"the":[6,27,63,68,72,91],"field":[7],"of":[8,17,24,90],"hyperspectral":[9],"image":[10],"(HSI)":[11],"classification.":[12,43],"However,":[13],"a":[14,37,54,78],"significant":[15],"drawback":[16],"transformers":[18],"lies":[19],"their":[21],"excessive":[22],"number":[23],"parameters":[25],"and":[26],"high":[28],"computational":[29,49,73,124],"overhead.":[30],"To":[31],"address":[32],"this":[33],"challenge,":[34],"we":[35,51,76],"propose":[36,77],"Channel-Reduced":[38],"Transformer":[39],"(CRFormer)":[40],"for":[41],"HSI":[42],"In":[44],"an":[45],"effort":[46],"to":[47,67,127],"enhance":[48],"efficiency,":[50],"first":[52],"introduce":[53],"cross-region":[55],"tokenization":[56],"(CRT)":[57],"approach.":[58],"This":[59,84],"method":[60,113],"effectively":[61],"shortens":[62],"sequence":[64],"length":[65],"input":[66,92],"transformer,":[69],"thereby":[70],"alleviating":[71],"burden.":[74],"Additionally,":[75],"channel-reduced":[79],"multi-head":[80],"self-attention":[81],"(CR-MHSA)":[82],"module.":[83],"module":[85],"operates":[86],"on":[87,105],"only":[88,115],"half":[89],"channels":[93],"while":[94],"still":[95],"attaining":[96],"comparable":[97],"or":[98],"even":[99],"superior":[100,117],"results.":[101],"Experimental":[102],"results":[103],"conducted":[104],"three":[106],"benchmark":[107],"datasets":[108],"demonstrate":[109],"that":[110],"our":[111],"proposed":[112],"not":[114],"achieves":[116],"classification":[118],"accuracy":[119],"but":[120],"also":[121],"significantly":[122],"reduces":[123],"complexity":[125],"compared":[126],"other":[128],"transformer-based":[129],"approaches.":[130]},"counts_by_year":[{"year":2026,"cited_by_count":3}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}