{"id":"https://openalex.org/W3211538708","doi":"https://doi.org/10.1109/tgrs.2021.3127887","title":"On the Extension of Cameron Decomposition Helicity Asymmetry Parameter From Single-Look to Multi-Look PolSAR Imagery","display_name":"On the Extension of Cameron Decomposition Helicity Asymmetry Parameter From Single-Look to Multi-Look PolSAR Imagery","publication_year":2021,"publication_date":"2021-11-13","ids":{"openalex":"https://openalex.org/W3211538708","doi":"https://doi.org/10.1109/tgrs.2021.3127887","mag":"3211538708"},"language":"en","primary_location":{"id":"doi:10.1109/tgrs.2021.3127887","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2021.3127887","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/A5101916992","display_name":"Hongzhong Li","orcid":"https://orcid.org/0000-0003-4304-6378"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Hongzhong Li","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-4304-6378","affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5052105726","display_name":"Jiehong Chen","orcid":"https://orcid.org/0000-0001-8504-4851"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]},{"id":"https://openalex.org/I53592917","display_name":"Jiangxi Normal University","ror":"https://ror.org/05nkgk822","country_code":"CN","type":"education","lineage":["https://openalex.org/I53592917"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiehong Chen","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","Key Laboratory of Poyang Lake Wetland and Watershed Research, MOE, Jiangxi Normal University, Nanchang, China"],"raw_orcid":"https://orcid.org/0000-0001-8504-4851","affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]},{"raw_affiliation_string":"Key Laboratory of Poyang Lake Wetland and Watershed Research, MOE, Jiangxi Normal University, Nanchang, China","institution_ids":["https://openalex.org/I53592917"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075273130","display_name":"Luyi Sun","orcid":"https://orcid.org/0000-0003-4575-0836"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Luyi Sun","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-4575-0836","affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5035512293","display_name":"Longlong Zhao","orcid":"https://orcid.org/0000-0003-3276-1130"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Longlong Zhao","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-3276-1130","affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100418690","display_name":"Xiaoli Li","orcid":"https://orcid.org/0000-0002-6184-6718"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaoli Li","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041084200","display_name":"Jin Wang","orcid":"https://orcid.org/0000-0003-2584-9644"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jin Wang","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5088044243","display_name":"Yu Han","orcid":"https://orcid.org/0000-0002-6711-530X"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yu Han","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5114778131","display_name":"Jinsong Chen","orcid":"https://orcid.org/0000-0002-6049-9259"},"institutions":[{"id":"https://openalex.org/I4210145761","display_name":"Shenzhen Institutes of Advanced Technology","ror":"https://ror.org/04gh4er46","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210145761"]},{"id":"https://openalex.org/I53592917","display_name":"Jiangxi Normal University","ror":"https://ror.org/05nkgk822","country_code":"CN","type":"education","lineage":["https://openalex.org/I53592917"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinsong Chen","raw_affiliation_strings":["Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","Key Laboratory of Poyang Lake Wetland and Watershed Research, MOE, Jiangxi Normal University, Nanchang, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Chinese Academy of Science, Shenzhen Institutes of Advanced Technology, Shenzhen, China","institution_ids":["https://openalex.org/I4210145761"]},{"raw_affiliation_string":"Key Laboratory of Poyang Lake Wetland and Watershed Research, MOE, Jiangxi Normal University, Nanchang, China","institution_ids":["https://openalex.org/I53592917"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2045,"currency":"USD","value_usd":2045},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.52148775,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"60","issue":null,"first_page":"1","last_page":"16"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T10801","display_name":"Synthetic Aperture Radar (SAR) Applications and Techniques","score":1.0,"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/T11038","display_name":"Advanced SAR Imaging Techniques","score":0.9994999766349792,"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/T11609","display_name":"Geophysical Methods and Applications","score":0.9991999864578247,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean Engineering"},"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/notation","display_name":"Notation","score":0.7212326526641846},{"id":"https://openalex.org/keywords/helicity","display_name":"Helicity","score":0.43067270517349243},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.42175763845443726},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.21770092844963074},{"id":"https://openalex.org/keywords/particle-physics","display_name":"Particle physics","score":0.14855250716209412},{"id":"https://openalex.org/keywords/arithmetic","display_name":"Arithmetic","score":0.09198829531669617}],"concepts":[{"id":"https://openalex.org/C45357846","wikidata":"https://www.wikidata.org/wiki/Q2001982","display_name":"Notation","level":2,"score":0.7212326526641846},{"id":"https://openalex.org/C2775859700","wikidata":"https://www.wikidata.org/wiki/Q568855","display_name":"Helicity","level":2,"score":0.43067270517349243},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.42175763845443726},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.21770092844963074},{"id":"https://openalex.org/C109214941","wikidata":"https://www.wikidata.org/wiki/Q18334","display_name":"Particle physics","level":1,"score":0.14855250716209412},{"id":"https://openalex.org/C94375191","wikidata":"https://www.wikidata.org/wiki/Q11205","display_name":"Arithmetic","level":1,"score":0.09198829531669617}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tgrs.2021.3127887","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tgrs.2021.3127887","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":[],"awards":[{"id":"https://openalex.org/G3316712340","display_name":null,"funder_award_id":"XDA19030301","funder_id":"https://openalex.org/F4320321133","funder_display_name":"Chinese Academy of Sciences"},{"id":"https://openalex.org/G7257045144","display_name":"\u5fae\u6ce2\u9065\u611f\u57fa\u4e8e\u6a21\u578b\u76ee\u6807\u5206\u89e3\u7684\u7814\u7a76","funder_award_id":"41761076","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8659068214","display_name":"\u57fa\u4e8e\u6a21\u578b\u6781\u5316\u5206\u89e3\u7684\u4e0d\u4e00\u81f4\u6027\u63a7\u5236\u7814\u7a76","funder_award_id":"41771403","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/F4320321133","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":37,"referenced_works":["https://openalex.org/W1421632428","https://openalex.org/W1484290300","https://openalex.org/W1538058927","https://openalex.org/W1554995779","https://openalex.org/W1923300439","https://openalex.org/W1943216364","https://openalex.org/W1969674753","https://openalex.org/W1974024703","https://openalex.org/W1992350595","https://openalex.org/W2004807580","https://openalex.org/W2006000998","https://openalex.org/W2007695941","https://openalex.org/W2036627634","https://openalex.org/W2049865414","https://openalex.org/W2078985447","https://openalex.org/W2097272115","https://openalex.org/W2098850102","https://openalex.org/W2116319373","https://openalex.org/W2117472121","https://openalex.org/W2126895410","https://openalex.org/W2134053010","https://openalex.org/W2139824394","https://openalex.org/W2142587760","https://openalex.org/W2144896701","https://openalex.org/W2149740258","https://openalex.org/W2150059023","https://openalex.org/W2154830216","https://openalex.org/W2156759776","https://openalex.org/W2157932537","https://openalex.org/W2169544485","https://openalex.org/W2171284705","https://openalex.org/W2321585011","https://openalex.org/W2515385907","https://openalex.org/W2953817828","https://openalex.org/W4237764598","https://openalex.org/W4251132199","https://openalex.org/W4251461295"],"related_works":["https://openalex.org/W2353100825","https://openalex.org/W2360540289","https://openalex.org/W2980812759","https://openalex.org/W2276233115","https://openalex.org/W3152144475","https://openalex.org/W2606885032","https://openalex.org/W2059213041","https://openalex.org/W2142637637","https://openalex.org/W2087242752","https://openalex.org/W2991323098"],"abstract_inverted_index":{"The":[0],"helicity":[1,49,151,225],"asymmetry":[2,162],"parameter$\\tau":[3,50],"$in":[4],"the":[5,9,24,44,58,71,78,86,89,94,97,102,111,119,127,134,149,164,169,177,233,236],"Cameron":[6,95,112,150],"decomposition":[7,138,166],"indicates":[8],"degree":[10],"to":[11,77,215],"wh":[12],"ich":[13],"a":[14,47],"scatterer":[15],"deviates":[16],"from":[17,184],"being":[18],"an":[19],"ideal":[20],"symmetric":[21],"scatterer.":[22],"However,":[23],"solving":[25],"procedure":[26],"of$\\tau":[27],"$can":[28],"only":[29],"be":[30,230],"expressed":[31],"in":[32,116,126,140,191,242],"terms":[33,117,243],"of":[34,118,129,136,142,158,160,244],"single-look":[35,69],"Sinclair":[36],"scattering":[37],"matrix.":[38],"In":[39,82],"this":[40,192],"article,":[41],"we":[42,84,109],"extend":[43],"helicity$\\tau":[45,73,80,238],"$to":[46],"generalized":[48,72,237],"_{g}":[51,74,239],"$,":[52],"which":[53],"is":[54,173],"appropriate":[55],"for":[56,189],"both":[57],"single-":[59],"and":[60,101,113,132,152,168,224,246],"multi-look":[61,195],"polarimetric":[62,122],"synthetic":[63],"aperture":[64],"radar":[65],"(PolSAR)":[66],"data.":[67],"For":[68],"data,":[70],"$is":[75],"equivalent":[76],"previous":[79],"$.":[81],"addition,":[83],"investigate":[85],"relationships":[87],"among":[88],"classical":[90],"helix/helicity":[91],"definitions,":[92],"including":[93],"helicity,":[96],"Krogager":[98,114,137,153,178],"helix":[99,104,154,171,179,222],"component,":[100],"Yamaguchi":[103,170],"component.":[105],"To":[106],"achieve":[107],"this,":[108],"represent":[110],"decompositions":[115,123],"unified":[120],"coherent":[121],"(CTD)":[124],"model":[125],"format":[128],"coherency":[130],"matrix":[131],"revise":[133],"expression":[135],"contributions":[139],"function":[141],"Huynen":[143],"parameters.":[144],"Results":[145],"show":[146],"that":[147,232],"essentially":[148],"are":[155,187,197,213],"two":[156],"kinds":[157],"representation":[159],"reflection":[161,217],"under":[163],"same":[165],"model,":[167],"contribution":[172],"always":[174],"larger":[175],"than":[176],"contribution.":[180],"Single-look":[181],"PolSAR":[182],"data":[183],"L-band":[185],"ESAR":[186],"used":[188],"demonstration":[190],"article.":[193],"Several":[194],"datasets":[196],"generated":[198],"by$1\\,\\,\\times":[199],"\\,\\,3$,$3\\,\\,\\times":[200,201],"\\,\\,5$,$5\\,\\,\\times":[202,203],"\\,\\,7$,$7\\,\\,\\times":[204,205],"\\,\\,9$,":[206],"and$9":[207],"\\times":[208],"9$boxcar":[209],"average.":[210],"Two":[211],"techniques":[212],"taken":[214],"mitigate":[216],"symmetry":[218],"assumption":[219],"based":[220],"on":[221],"component":[223],"angle,":[226],"respectively.":[227],"It":[228],"will":[229],"shown":[231],"technique":[234],"with":[235],"$performs":[240],"best":[241],"efficiency":[245],"stability.":[247]},"counts_by_year":[],"updated_date":"2026-08-28T12:50:07.497085","created_date":"2025-10-10T00:00:00"}