{"id":"https://openalex.org/W2083941652","doi":"https://doi.org/10.1002/ima.1850030106","title":"Comparison of statistical methods in MR imaging","display_name":"Comparison of statistical methods in MR imaging","publication_year":1991,"publication_date":"1991-03-01","ids":{"openalex":"https://openalex.org/W2083941652","doi":"https://doi.org/10.1002/ima.1850030106","mag":"2083941652"},"language":"en","primary_location":{"id":"doi:10.1002/ima.1850030106","is_oa":false,"landing_page_url":"https://doi.org/10.1002/ima.1850030106","pdf_url":null,"source":{"id":"https://openalex.org/S15952048","display_name":"International Journal of Imaging Systems and Technology","issn_l":"0899-9457","issn":["0899-9457","1098-1098"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Imaging Systems and Technology","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/A5077247065","display_name":"Fred Godtliebsen","orcid":"https://orcid.org/0000-0001-7896-8634"},"institutions":[{"id":"https://openalex.org/I204778367","display_name":"Norwegian University of Science and Technology","ror":"https://ror.org/05xg72x27","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]}],"countries":["NO"],"is_corresponding":true,"raw_author_name":"Fred Godtliebsen","raw_affiliation_strings":["Division of Mathematical Sciences, The Norwegian Institute of Technology, N-7034 Trondheim, Norway","Division of Mathematical Sciences The Norwegian Institute of Technology N-7034 Trondheim, Norway"],"affiliations":[{"raw_affiliation_string":"Division of Mathematical Sciences, The Norwegian Institute of Technology, N-7034 Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]},{"raw_affiliation_string":"Division of Mathematical Sciences The Norwegian Institute of Technology N-7034 Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5045842821","display_name":"Emil Spjs\u00f8tvoll","orcid":null},"institutions":[{"id":"https://openalex.org/I204778367","display_name":"Norwegian University of Science and Technology","ror":"https://ror.org/05xg72x27","country_code":"NO","type":"education","lineage":["https://openalex.org/I204778367"]}],"countries":["NO"],"is_corresponding":false,"raw_author_name":"Emil Spjs\u00f8tvoll","raw_affiliation_strings":["Division of Mathematical Sciences, The Norwegian Institute of Technology, N-7034 Trondheim, Norway","Division of Mathematical Sciences The Norwegian Institute of Technology N-7034 Trondheim, Norway"],"affiliations":[{"raw_affiliation_string":"Division of Mathematical Sciences, The Norwegian Institute of Technology, N-7034 Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]},{"raw_affiliation_string":"Division of Mathematical Sciences The Norwegian Institute of Technology N-7034 Trondheim, Norway","institution_ids":["https://openalex.org/I204778367"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5077247065"],"corresponding_institution_ids":["https://openalex.org/I204778367"],"apc_list":{"value":3450,"currency":"USD","value_usd":3450},"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":16,"citation_normalized_percentile":{"value":0.23641348,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"3","issue":"1","first_page":"33","last_page":"39"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T13487","display_name":"Statistical and numerical algorithms","score":0.9983000159263611,"subfield":{"id":"https://openalex.org/subfields/2604","display_name":"Applied Mathematics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11205","display_name":"Numerical methods in inverse problems","score":0.9925000071525574,"subfield":{"id":"https://openalex.org/subfields/2610","display_name":"Mathematical Physics"},"field":{"id":"https://openalex.org/fields/26","display_name":"Mathematics"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6724362969398499},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5566469430923462},{"id":"https://openalex.org/keywords/gaussian","display_name":"Gaussian","score":0.5499184727668762},{"id":"https://openalex.org/keywords/simple","display_name":"Simple (philosophy)","score":0.5391421914100647},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.5199955105781555},{"id":"https://openalex.org/keywords/gaussian-filter","display_name":"Gaussian filter","score":0.48109835386276245},{"id":"https://openalex.org/keywords/window","display_name":"Window (computing)","score":0.4708278477191925},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.46608346700668335},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.4596545100212097},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.4486275017261505},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4179304242134094},{"id":"https://openalex.org/keywords/gaussian-blur","display_name":"Gaussian blur","score":0.4146002531051636},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3685835003852844},{"id":"https://openalex.org/keywords/image-restoration","display_name":"Image restoration","score":0.22834870219230652},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.11980283260345459}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6724362969398499},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5566469430923462},{"id":"https://openalex.org/C163716315","wikidata":"https://www.wikidata.org/wiki/Q901177","display_name":"Gaussian","level":2,"score":0.5499184727668762},{"id":"https://openalex.org/C2780586882","wikidata":"https://www.wikidata.org/wiki/Q7520643","display_name":"Simple (philosophy)","level":2,"score":0.5391421914100647},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.5199955105781555},{"id":"https://openalex.org/C65892221","wikidata":"https://www.wikidata.org/wiki/Q1113935","display_name":"Gaussian filter","level":3,"score":0.48109835386276245},{"id":"https://openalex.org/C2778751112","wikidata":"https://www.wikidata.org/wiki/Q835016","display_name":"Window (computing)","level":2,"score":0.4708278477191925},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.46608346700668335},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4596545100212097},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.4486275017261505},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4179304242134094},{"id":"https://openalex.org/C104317376","wikidata":"https://www.wikidata.org/wiki/Q1894545","display_name":"Gaussian blur","level":5,"score":0.4146002531051636},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3685835003852844},{"id":"https://openalex.org/C106430172","wikidata":"https://www.wikidata.org/wiki/Q6002272","display_name":"Image restoration","level":4,"score":0.22834870219230652},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.11980283260345459},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"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/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1002/ima.1850030106","is_oa":false,"landing_page_url":"https://doi.org/10.1002/ima.1850030106","pdf_url":null,"source":{"id":"https://openalex.org/S15952048","display_name":"International Journal of Imaging Systems and Technology","issn_l":"0899-9457","issn":["0899-9457","1098-1098"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Journal of Imaging Systems and Technology","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":11,"referenced_works":["https://openalex.org/W186085407","https://openalex.org/W1554544485","https://openalex.org/W1981733222","https://openalex.org/W2002049385","https://openalex.org/W2005081942","https://openalex.org/W2018466288","https://openalex.org/W2020999234","https://openalex.org/W2026849320","https://openalex.org/W2152547424","https://openalex.org/W2489822048","https://openalex.org/W2551671969"],"related_works":["https://openalex.org/W2609066529","https://openalex.org/W1970319972","https://openalex.org/W2082319654","https://openalex.org/W2150541705","https://openalex.org/W2389710210","https://openalex.org/W4386840168","https://openalex.org/W2566989475","https://openalex.org/W2968444945","https://openalex.org/W4220715471","https://openalex.org/W2532119227"],"abstract_inverted_index":{"Abstract":[0],"The":[1],"problem":[2],"of":[3],"recovering":[4],"the":[5,35],"true":[6],"underlying":[7],"scene":[8],"from":[9],"a":[10,32],"noisy":[11],"image":[12],"is":[13],"considered.":[14],"Several":[15],"methods":[16],"are":[17],"compared":[18],"empirically":[19],"by":[20],"applying":[21],"them":[22],"to":[23],"magnetic":[24],"resonance":[25],"(MR)":[26],"images.":[27],"It":[28],"turns":[29],"out":[30],"that":[31],"simple":[33],"method,":[34],"Gaussian":[36],"window":[37],"filter,":[38],"gives":[39],"good":[40],"results.":[41],"This":[42],"method":[43],"requires":[44],"only":[45],"\u201cinstantaneous\u201d":[46],"processing.":[47]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}