{"id":"https://openalex.org/W2045215623","doi":"https://doi.org/10.1109/lgrs.2014.2318775","title":"Equation-Based <roman>InSAR</roman> Data Quadtree Downsampling for Earthquake Slip Distribution Inversion","display_name":"Equation-Based <roman>InSAR</roman> Data Quadtree Downsampling for Earthquake Slip Distribution Inversion","publication_year":2014,"publication_date":"2014-05-14","ids":{"openalex":"https://openalex.org/W2045215623","doi":"https://doi.org/10.1109/lgrs.2014.2318775","mag":"2045215623"},"language":"en","primary_location":{"id":"doi:10.1109/lgrs.2014.2318775","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2014.2318775","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/A5050021374","display_name":"Chisheng Wang","orcid":"https://orcid.org/0000-0003-3489-173X"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]},{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN","HK"],"is_corresponding":false,"raw_author_name":"Chisheng Wang","raw_affiliation_strings":["Shenzhen Key Laboratory of Spatial Information Smart Sensing and Services, The Hong Kong Polytechnic University, Kowloon, Hong Kong","Shenzhen Key Lab. of Spatial Inf. Smart Sensing & Services & Key Lab. for Geo-Environ. Monitoring of Coastal Zone of the Nat. Adm. of Surveying, Shenzhen Univ., Shenzhen, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Shenzhen Key Laboratory of Spatial Information Smart Sensing and Services, The Hong Kong Polytechnic University, Kowloon, Hong Kong","institution_ids":["https://openalex.org/I14243506"]},{"raw_affiliation_string":"Shenzhen Key Lab. of Spatial Inf. Smart Sensing & Services & Key Lab. for Geo-Environ. Monitoring of Coastal Zone of the Nat. Adm. of Surveying, Shenzhen Univ., Shenzhen, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008517057","display_name":"Xiaoli Ding","orcid":"https://orcid.org/0000-0002-5733-3629"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Xiaoli Ding","raw_affiliation_strings":["Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong","Dept. of Land Surveying & Geoinf., Hong Kong Polytech. Univ., Kowloon, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong","institution_ids":["https://openalex.org/I14243506"]},{"raw_affiliation_string":"Dept. of Land Surveying & Geoinf., Hong Kong Polytech. Univ., Kowloon, China","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100404067","display_name":"Qingquan Li","orcid":"https://orcid.org/0000-0002-2438-6046"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]},{"id":"https://openalex.org/I4210141849","display_name":"National Administration of Surveying, Mapping and Geoinformation of China","ror":"https://ror.org/04z3map19","country_code":"CN","type":"government","lineage":["https://openalex.org/I4210141849"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qingquan Li","raw_affiliation_strings":["Shenzhen Key Laboratory of Spatial Information Smart Sensing and Services & Key Laboratory for Geo-Environment Monitoring of Coastal Zone of the National Administration of Surveying, Mapping and GeoInformation, Shenzhen University, Shenzhen, China","Shenzhen Key Lab. of Spatial Inf. Smart Sensing & Services, Shenzhen Univ., Shenzhen, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Shenzhen Key Laboratory of Spatial Information Smart Sensing and Services & Key Laboratory for Geo-Environment Monitoring of Coastal Zone of the National Administration of Surveying, Mapping and GeoInformation, Shenzhen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961","https://openalex.org/I4210141849"]},{"raw_affiliation_string":"Shenzhen Key Lab. of Spatial Inf. Smart Sensing & Services, Shenzhen Univ., Shenzhen, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008885756","display_name":"Mi Jiang","orcid":"https://orcid.org/0000-0003-2459-4619"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Mi Jiang","raw_affiliation_strings":["Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong","Dept. of Land Surveying & Geoinf., Hong Kong Polytech. Univ., Kowloon, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Land Surveying and Geo-Informatics, The Hong Kong Polytechnic University, Kowloon, Hong Kong","institution_ids":["https://openalex.org/I14243506"]},{"raw_affiliation_string":"Dept. of Land Surveying & Geoinf., Hong Kong Polytech. Univ., Kowloon, China","institution_ids":["https://openalex.org/I14243506"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":15.8007,"has_fulltext":false,"cited_by_count":21,"citation_normalized_percentile":{"value":0.98656296,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"11","issue":"12","first_page":"2060","last_page":"2064"},"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":0.9995999932289124,"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":0.9995999932289124,"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/T10110","display_name":"earthquake and tectonic studies","score":0.998199999332428,"subfield":{"id":"https://openalex.org/subfields/1908","display_name":"Geophysics"},"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/T10161","display_name":"Rock Mechanics and Modeling","score":0.9969000220298767,"subfield":{"id":"https://openalex.org/subfields/2211","display_name":"Mechanics of Materials"},"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/upsampling","display_name":"Upsampling","score":0.8503711223602295},{"id":"https://openalex.org/keywords/interferometric-synthetic-aperture-radar","display_name":"Interferometric synthetic aperture radar","score":0.6139957904815674},{"id":"https://openalex.org/keywords/inversion","display_name":"Inversion (geology)","score":0.6125555038452148},{"id":"https://openalex.org/keywords/synthetic-aperture-radar","display_name":"Synthetic aperture radar","score":0.5415608286857605},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.4689566493034363},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4686431586742401},{"id":"https://openalex.org/keywords/geodesy","display_name":"Geodesy","score":0.4566650986671448},{"id":"https://openalex.org/keywords/inverse-transform-sampling","display_name":"Inverse transform sampling","score":0.4464525282382965},{"id":"https://openalex.org/keywords/perturbation","display_name":"Perturbation (astronomy)","score":0.4225686192512512},{"id":"https://openalex.org/keywords/classification-of-discontinuities","display_name":"Classification of discontinuities","score":0.4223706126213074},{"id":"https://openalex.org/keywords/slip","display_name":"Slip (aerodynamics)","score":0.4194744825363159},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.35994312167167664},{"id":"https://openalex.org/keywords/seismology","display_name":"Seismology","score":0.2766374945640564},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2594558596611023},{"id":"https://openalex.org/keywords/mathematical-analysis","display_name":"Mathematical analysis","score":0.2431837022304535},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.23431852459907532},{"id":"https://openalex.org/keywords/tectonics","display_name":"Tectonics","score":0.2035810649394989},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.16509678959846497},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.12484472990036011},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.07249218225479126},{"id":"https://openalex.org/keywords/surface-wave","display_name":"Surface wave","score":0.06802693009376526}],"concepts":[{"id":"https://openalex.org/C110384440","wikidata":"https://www.wikidata.org/wiki/Q1143270","display_name":"Upsampling","level":3,"score":0.8503711223602295},{"id":"https://openalex.org/C22286887","wikidata":"https://www.wikidata.org/wiki/Q1666056","display_name":"Interferometric synthetic aperture radar","level":3,"score":0.6139957904815674},{"id":"https://openalex.org/C1893757","wikidata":"https://www.wikidata.org/wiki/Q3653001","display_name":"Inversion (geology)","level":3,"score":0.6125555038452148},{"id":"https://openalex.org/C87360688","wikidata":"https://www.wikidata.org/wiki/Q740686","display_name":"Synthetic aperture radar","level":2,"score":0.5415608286857605},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.4689566493034363},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4686431586742401},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.4566650986671448},{"id":"https://openalex.org/C143606050","wikidata":"https://www.wikidata.org/wiki/Q1377019","display_name":"Inverse transform sampling","level":3,"score":0.4464525282382965},{"id":"https://openalex.org/C177918212","wikidata":"https://www.wikidata.org/wiki/Q803623","display_name":"Perturbation (astronomy)","level":2,"score":0.4225686192512512},{"id":"https://openalex.org/C15627037","wikidata":"https://www.wikidata.org/wiki/Q541961","display_name":"Classification of discontinuities","level":2,"score":0.4223706126213074},{"id":"https://openalex.org/C195268267","wikidata":"https://www.wikidata.org/wiki/Q1928883","display_name":"Slip (aerodynamics)","level":2,"score":0.4194744825363159},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.35994312167167664},{"id":"https://openalex.org/C165205528","wikidata":"https://www.wikidata.org/wiki/Q83371","display_name":"Seismology","level":1,"score":0.2766374945640564},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2594558596611023},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.2431837022304535},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.23431852459907532},{"id":"https://openalex.org/C77928131","wikidata":"https://www.wikidata.org/wiki/Q193343","display_name":"Tectonics","level":2,"score":0.2035810649394989},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.16509678959846497},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.12484472990036011},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.07249218225479126},{"id":"https://openalex.org/C84174578","wikidata":"https://www.wikidata.org/wiki/Q889796","display_name":"Surface wave","level":2,"score":0.06802693009376526},{"id":"https://openalex.org/C97355855","wikidata":"https://www.wikidata.org/wiki/Q11473","display_name":"Thermodynamics","level":1,"score":0.0},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"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":2,"locations":[{"id":"doi:10.1109/lgrs.2014.2318775","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lgrs.2014.2318775","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:ira.lib.polyu.edu.hk:10397/26174","is_oa":false,"landing_page_url":"http://hdl.handle.net/10397/26174","pdf_url":null,"source":{"id":"https://openalex.org/S4306400205","display_name":"PolyU Institutional Research Archive (Hong Kong Polytechnic University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I14243506","host_organization_name":"Hong Kong Polytechnic University","host_organization_lineage":["https://openalex.org/I14243506"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal/Magazine Article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.41999998688697815,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":15,"referenced_works":["https://openalex.org/W83404773","https://openalex.org/W658559791","https://openalex.org/W1818230177","https://openalex.org/W1968735445","https://openalex.org/W1982011341","https://openalex.org/W2012366778","https://openalex.org/W2028370714","https://openalex.org/W2034238081","https://openalex.org/W2075974162","https://openalex.org/W2146564568","https://openalex.org/W2151537195","https://openalex.org/W2156026060","https://openalex.org/W2172037674","https://openalex.org/W2286838191","https://openalex.org/W2928790261"],"related_works":["https://openalex.org/W2062399876","https://openalex.org/W2607795551","https://openalex.org/W3155117723","https://openalex.org/W1991429770","https://openalex.org/W1983892167","https://openalex.org/W1972096828","https://openalex.org/W3206958763","https://openalex.org/W2159160885","https://openalex.org/W2148958581","https://openalex.org/W2910315605"],"abstract_inverted_index":{"Downsampling":[0],"is":[1,39],"a":[2,50],"routine":[3],"step":[4],"before":[5],"applying":[6],"interferometric":[7],"synthetic":[8],"aperture":[9],"radar":[10],"(InSAR)":[11],"data":[12,63,71,83,95],"to":[13,33,52,74,106],"earthquake":[14],"inversion":[15,45,59,96],"because":[16],"of":[17,28,111],"the":[18,29,35,55,58,77,90,108,112],"high":[19],"computational":[20],"burden.":[21],"In":[22],"this":[23],"letter,":[24],"we":[25,48,66,102],"make":[26],"use":[27,103],"matrix":[30,42],"perturbation":[31,43,56],"theory":[32],"describe":[34],"downsampling":[36,72],"process,":[37],"which":[38],"considered":[40],"as":[41],"on":[44,57],"equation.":[46],"First,":[47],"derive":[49],"formula":[51],"quantitatively":[53],"assess":[54],"solution":[60],"caused":[61],"by":[62],"downsampling.":[64],"Next,":[65],"propose":[67],"an":[68],"equation-based":[69],"InSAR":[70],"algorithm":[73,88],"better":[75],"reduce":[76],"perturbation.":[78],"The":[79],"experiment":[80],"with":[81,98],"simulated":[82],"demonstrates":[84],"that":[85],"our":[86,104],"new":[87],"preserves":[89],"most":[91],"details":[92],"from":[93],"full":[94],"comparing":[97],"previous":[99],"algorithms.":[100],"Finally,":[101],"method":[105],"study":[107],"slip":[109],"distribution":[110],"2008":[113],"Mw":[114],"6.3":[115],"Dangxiong":[116],"earthquake.":[117]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":2},{"year":2018,"cited_by_count":6},{"year":2016,"cited_by_count":2}],"updated_date":"2026-07-22T07:51:19.307946","created_date":"2025-10-10T00:00:00"}