{"id":"https://openalex.org/W2066940541","doi":"https://doi.org/10.4304/jcp.6.5.857-864","title":"Regularized Least Squares Estimating Sensitivity for Self-calibrating Parallel Imaging","display_name":"Regularized Least Squares Estimating Sensitivity for Self-calibrating Parallel Imaging","publication_year":2011,"publication_date":"2011-05-03","ids":{"openalex":"https://openalex.org/W2066940541","doi":"https://doi.org/10.4304/jcp.6.5.857-864","mag":"2066940541"},"language":"en","primary_location":{"id":"doi:10.4304/jcp.6.5.857-864","is_oa":false,"landing_page_url":"https://doi.org/10.4304/jcp.6.5.857-864","pdf_url":null,"source":{"id":"https://openalex.org/S77894049","display_name":"Journal of Computers","issn_l":"1796-203X","issn":["1796-203X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318660","host_organization_name":"Academy Publisher","host_organization_lineage":["https://openalex.org/P4310318660"],"host_organization_lineage_names":["Academy Publisher"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computers","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/A5056487497","display_name":"Xiaofang Liu","orcid":"https://orcid.org/0000-0002-8137-4201"},"institutions":[],"countries":[],"is_corresponding":true,"raw_author_name":"XiaoFang Liu","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5067118299","display_name":"Xiuzi Ye","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Xiuzi Ye","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"middle","author":{"id":"https://openalex.org/A5115594213","display_name":"Sanyuan Zhang","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Sanyuan Zhang","raw_affiliation_strings":[],"affiliations":[]},{"author_position":"last","author":{"id":"https://openalex.org/A5100610446","display_name":"Feng Liu","orcid":"https://orcid.org/0000-0002-1074-2601"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Feng Liu","raw_affiliation_strings":[],"affiliations":[]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5056487497"],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.7873,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.74702355,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":"6","issue":"5","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10378","display_name":"Advanced MRI Techniques and Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},"topics":[{"id":"https://openalex.org/T10378","display_name":"Advanced MRI Techniques and Applications","score":1.0,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.9994999766349792,"subfield":{"id":"https://openalex.org/subfields/2741","display_name":"Radiology, Nuclear Medicine and Imaging"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}},{"id":"https://openalex.org/T12015","display_name":"Photoacoustic and Ultrasonic Imaging","score":0.9959999918937683,"subfield":{"id":"https://openalex.org/subfields/2204","display_name":"Biomedical 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/sensitivity","display_name":"Sensitivity (control systems)","score":0.7188126444816589},{"id":"https://openalex.org/keywords/calibration","display_name":"Calibration","score":0.6643346548080444},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.615634560585022},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.48232170939445496},{"id":"https://openalex.org/keywords/truncation","display_name":"Truncation (statistics)","score":0.47009918093681335},{"id":"https://openalex.org/keywords/least-squares-function-approximation","display_name":"Least-squares function approximation","score":0.45569437742233276},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.43682825565338135},{"id":"https://openalex.org/keywords/electromagnetic-coil","display_name":"Electromagnetic coil","score":0.4125733971595764},{"id":"https://openalex.org/keywords/conjugate-gradient-method","display_name":"Conjugate gradient method","score":0.4107479751110077},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.40280821919441223},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.32019490003585815},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.25190263986587524},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.14873555302619934},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.10624882578849792}],"concepts":[{"id":"https://openalex.org/C21200559","wikidata":"https://www.wikidata.org/wiki/Q7451068","display_name":"Sensitivity (control systems)","level":2,"score":0.7188126444816589},{"id":"https://openalex.org/C165838908","wikidata":"https://www.wikidata.org/wiki/Q736777","display_name":"Calibration","level":2,"score":0.6643346548080444},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.615634560585022},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.48232170939445496},{"id":"https://openalex.org/C106195933","wikidata":"https://www.wikidata.org/wiki/Q7847935","display_name":"Truncation (statistics)","level":2,"score":0.47009918093681335},{"id":"https://openalex.org/C9936470","wikidata":"https://www.wikidata.org/wiki/Q6510405","display_name":"Least-squares function approximation","level":3,"score":0.45569437742233276},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.43682825565338135},{"id":"https://openalex.org/C30403606","wikidata":"https://www.wikidata.org/wiki/Q2981904","display_name":"Electromagnetic coil","level":2,"score":0.4125733971595764},{"id":"https://openalex.org/C81184566","wikidata":"https://www.wikidata.org/wiki/Q1191895","display_name":"Conjugate gradient method","level":2,"score":0.4107479751110077},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.40280821919441223},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.32019490003585815},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.25190263986587524},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.14873555302619934},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.10624882578849792},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C185429906","wikidata":"https://www.wikidata.org/wiki/Q1130160","display_name":"Estimator","level":2,"score":0.0},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.4304/jcp.6.5.857-864","is_oa":false,"landing_page_url":"https://doi.org/10.4304/jcp.6.5.857-864","pdf_url":null,"source":{"id":"https://openalex.org/S77894049","display_name":"Journal of Computers","issn_l":"1796-203X","issn":["1796-203X"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310318660","host_organization_name":"Academy Publisher","host_organization_lineage":["https://openalex.org/P4310318660"],"host_organization_lineage_names":["Academy Publisher"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Computers","raw_type":"journal-article"},{"id":"pmh:oai:espace.library.uq.edu.au:UQ:316667","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306402388","display_name":"Queensland's institutional digital repository (The University of Queensland)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I165143802","host_organization_name":"The University of Queensland","host_organization_lineage":["https://openalex.org/I165143802"],"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 Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":25,"referenced_works":["https://openalex.org/W150337414","https://openalex.org/W1975055965","https://openalex.org/W1990608330","https://openalex.org/W1991732515","https://openalex.org/W1999584433","https://openalex.org/W2000516034","https://openalex.org/W2011344206","https://openalex.org/W2034788380","https://openalex.org/W2049609055","https://openalex.org/W2056828510","https://openalex.org/W2087332491","https://openalex.org/W2091685970","https://openalex.org/W2100522270","https://openalex.org/W2101507236","https://openalex.org/W2110908675","https://openalex.org/W2111388536","https://openalex.org/W2114424556","https://openalex.org/W2125532980","https://openalex.org/W2135718700","https://openalex.org/W2146598152","https://openalex.org/W2159122269","https://openalex.org/W2165428057","https://openalex.org/W2167233877","https://openalex.org/W2168543121","https://openalex.org/W4249760698"],"related_works":["https://openalex.org/W1974935850","https://openalex.org/W2074350688","https://openalex.org/W2544771389","https://openalex.org/W2034060070","https://openalex.org/W4229957265","https://openalex.org/W2386899346","https://openalex.org/W2042589464","https://openalex.org/W4364321570","https://openalex.org/W2003945644","https://openalex.org/W2108012307"],"abstract_inverted_index":{"Calibration":[0],"of":[1,6,42,48,60,84,95,141],"the":[2,27,40,74,80,93,112,119,129,136,149],"spatial":[3],"sensitivity":[4,23,43,75,97,122],"functions":[5],"coil":[7,121],"arrays":[8],"is":[9,52,77,109,144,155,165],"a":[10,33,55,61,69,102,160],"crucial":[11],"element":[12],"in":[13,65,79,90,133],"parallel":[14,67],"magnetic":[15],"resonance":[16],"imaging":[17],"(pMRI).":[18],"The":[19],"self-calibrating":[20,49,66,91],"technique":[21,30],"for":[22,72],"extraction":[24],"has":[25],"complemented":[26],"common":[28],"calibration":[29],"that":[31],"uses":[32],"separate":[34],"pre-scan.":[35],"In":[36],"order":[37],"to":[38,123],"improve":[39],"accuracy":[41],"estimate":[44],"from":[45,54,128],"small":[46],"number":[47],"data,":[50,92,135],"which":[51,108],"extracted":[53],"fully":[56],"sampled":[57],"central":[58],"region":[59],"variable-density":[62],"k-space":[63],"acquisition":[64],"images,":[68],"novel":[70],"scheme":[71],"estimating":[73],"profiles":[76],"proposed":[78],"paper.":[81],"On":[82],"consideration":[83],"truncation":[85],"error":[86,153],"and":[87,132,147],"measurement":[88],"errors":[89],"issue":[94],"calculating":[96],"would":[98],"be":[99],"formulated":[100],"as":[101],"regularized":[103],"least":[104],"squares":[105],"estimation":[106],"problem,":[107],"solved":[110],"by":[111],"preconditioned":[113],"conjugate":[114],"gradients":[115],"algorithm.":[116],"When":[117],"applying":[118],"estimated":[120],"reconstruct":[124],"full":[125],"field-of-view(FOV)":[126],"image":[127,143],"under-sampling":[130],"simulated":[131],"vivo":[134],"normalized":[137,150],"signal-to-noise":[138],"ratio":[139],"(NSNR)":[140],"reconstruction":[142],"evidently":[145],"improved,":[146],"meanwhile":[148],"mean":[151],"squared":[152],"(NMSE)":[154],"remarkably":[156],"reduced,":[157],"especially":[158],"when":[159],"rather":[161],"large":[162],"accelerate":[163],"factor":[164],"used.":[166]},"counts_by_year":[{"year":2014,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-04-04T16:13:02.066488","created_date":"2025-10-10T00:00:00"}