{"id":"https://openalex.org/W2215199728","doi":null,"title":"La M\u00e9thode Descente De Gradient Pour La Reconstruction Tomographique Des Images 2D A Rayon-X","display_name":"La M\u00e9thode Descente De Gradient Pour La Reconstruction Tomographique Des Images 2D A Rayon-X","publication_year":2014,"publication_date":"2014-07-02","ids":{"openalex":"https://openalex.org/W2215199728","mag":"2215199728"},"language":"fr","primary_location":{"id":"mag:2215199728","doi":null,"is_oa":false,"landing_page_url":"http://jarst.info/index.php/JARST/article/view/15","pdf_url":null,"source":{"id":"https://openalex.org/S4306515289","display_name":"Journal of Advanced Research in Science and Technology","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Journal of Advanced Research in Science and Technology","raw_type":null},"volume":null,"type":"article","indexed_in":[],"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/A5002809842","display_name":"Nabil Chetih","orcid":"https://orcid.org/0009-0008-9706-003X","observed_orcids":["https://orcid.org/0009-0008-9706-003X"]},"institutions":[{"id":"https://openalex.org/I157169809","display_name":"University of Sciences and Technology Houari Boumediene","ror":"https://ror.org/02kb89c09","country_code":"DZ","type":"education","lineage":["https://openalex.org/I157169809"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Nabil Chetih","raw_affiliation_strings":["Universit\u00e9 des Sciences et de la Technologie Houari Boumediene, Facult\u00e9 d\u2019Electronique et d\u2019Informatique, D\u00e9partement de T\u00e9l\u00e9communication, Alger, Alg\u00e9rie"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e9 des Sciences et de la Technologie Houari Boumediene, Facult\u00e9 d\u2019Electronique et d\u2019Informatique, D\u00e9partement de T\u00e9l\u00e9communication, Alger, Alg\u00e9rie","institution_ids":["https://openalex.org/I157169809"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083504155","display_name":"Zoubeida Messali","orcid":"https://orcid.org/0009-0003-5318-873X","observed_orcids":["https://orcid.org/0009-0003-5318-873X"]},"institutions":[{"id":"https://openalex.org/I4210135256","display_name":"University Mohamed El Bachir El Ibrahimi of Bordj Bou Arreridj","ror":"https://ror.org/03e75b898","country_code":"DZ","type":"education","lineage":["https://openalex.org/I4210135256"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Zoubeida Messali","raw_affiliation_strings":["Universit\u00e9 El Bachir El Ibrahimi de Bordj Bou-Arr\u00e9ridj, Facult\u00e9 des Sciences et de la Technologie, D\u00e9partement d\u2019Electronique, 34265 El Anassers, Bordj Bou-Arr\u00e9ridj, Alg\u00e9rie"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Universit\u00e9 El Bachir El Ibrahimi de Bordj Bou-Arr\u00e9ridj, Facult\u00e9 des Sciences et de la Technologie, D\u00e9partement d\u2019Electronique, 34265 El Anassers, Bordj Bou-Arr\u00e9ridj, Alg\u00e9rie","institution_ids":["https://openalex.org/I4210135256"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5053455950","display_name":"Amina Serir","orcid":"https://orcid.org/0000-0001-7716-1273","observed_orcids":["https://orcid.org/0000-0001-7716-1273"]},"institutions":[{"id":"https://openalex.org/I157169809","display_name":"University of Sciences and Technology Houari Boumediene","ror":"https://ror.org/02kb89c09","country_code":"DZ","type":"education","lineage":["https://openalex.org/I157169809"]}],"countries":["DZ"],"is_corresponding":false,"raw_author_name":"Amina Serir","raw_affiliation_strings":["Laboratoire  de Traitement d\u2019Images et de Rayonnement (LTIR), Universit\u00e9 des Sciences et de la Technologie Houari Boumediene, Alger, Alg\u00e9rie"],"raw_orcid":"https://orcid.org/0000-0001-7716-1273","affiliations":[{"raw_affiliation_string":"Laboratoire  de Traitement d\u2019Images et de Rayonnement (LTIR), Universit\u00e9 des Sciences et de la Technologie Houari Boumediene, Alger, Alg\u00e9rie","institution_ids":["https://openalex.org/I157169809"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.17824207,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"1","issue":"2","first_page":"39","last_page":"47"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11205","display_name":"Numerical methods in inverse problems","score":0.5913000106811523,"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"}},"topics":[{"id":"https://openalex.org/T11205","display_name":"Numerical methods in inverse problems","score":0.5913000106811523,"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"}},{"id":"https://openalex.org/T10522","display_name":"Medical Imaging Techniques and Applications","score":0.3433000147342682,"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/T11739","display_name":"Microwave Imaging and Scattering Analysis","score":0.008899999782443047,"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/tomographic-reconstruction","display_name":"tomographic reconstruction","score":0.7269999980926514},{"id":"https://openalex.org/keywords/x-ray-images","display_name":"X-ray images","score":0.6520000100135803},{"id":"https://openalex.org/keywords/gradient-descent","display_name":"gradient descent","score":0.7789999842643738},{"id":"https://openalex.org/keywords/iterative-reconstruction","display_name":"iterative reconstruction","score":0.6909999847412109},{"id":"https://openalex.org/keywords/inverse-problems","display_name":"inverse problems","score":0.9589999914169312},{"id":"https://openalex.org/keywords/discrete-formulation","display_name":"discrete formulation","score":0.4059999883174896},{"id":"https://openalex.org/keywords/2d-image-reconstruction","display_name":"2D image reconstruction","score":0.7459999918937683},{"id":"https://openalex.org/keywords/image-quality-assessment","display_name":"image quality assessment","score":0.6169999837875366}],"concepts":[{"id":"https://openalex.org/C141379421","wikidata":"https://www.wikidata.org/wiki/Q6094427","display_name":"Iterative reconstruction","level":2,"score":0.6084524989128113},{"id":"https://openalex.org/C153258448","wikidata":"https://www.wikidata.org/wiki/Q1199743","display_name":"Gradient descent","level":3,"score":0.5239682197570801},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5019547939300537},{"id":"https://openalex.org/C135252773","wikidata":"https://www.wikidata.org/wiki/Q1567213","display_name":"Inverse problem","level":2,"score":0.484235018491745},{"id":"https://openalex.org/C97742081","wikidata":"https://www.wikidata.org/wiki/Q7820109","display_name":"Tomographic reconstruction","level":3,"score":0.462481826543808},{"id":"https://openalex.org/C163716698","wikidata":"https://www.wikidata.org/wiki/Q841267","display_name":"Tomography","level":2,"score":0.4357709288597107},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.36478352546691895},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.34059956669807434},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3232532739639282},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.1821545958518982},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.1398165225982666},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.12841856479644775},{"id":"https://openalex.org/C50644808","wikidata":"https://www.wikidata.org/wiki/Q192776","display_name":"Artificial neural network","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"mag:2215199728","doi":null,"is_oa":false,"landing_page_url":"http://jarst.info/index.php/JARST/article/view/15","pdf_url":null,"source":{"id":"https://openalex.org/S4306515289","display_name":"Journal of Advanced Research in Science and Technology","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":null,"license_id":null,"version":null,"is_accepted":false,"is_published":false,"raw_source_name":"Journal of Advanced Research in Science and Technology","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":10,"referenced_works":["https://openalex.org/W11724956","https://openalex.org/W18959996","https://openalex.org/W1891900466","https://openalex.org/W1965341600","https://openalex.org/W1979446637","https://openalex.org/W1995230427","https://openalex.org/W2037521346","https://openalex.org/W2058583833","https://openalex.org/W2089441731","https://openalex.org/W2133175443"],"related_works":["https://openalex.org/W7120681394","https://openalex.org/W2767301760","https://openalex.org/W2779321486","https://openalex.org/W7097095009","https://openalex.org/W3013433439","https://openalex.org/W2564160905","https://openalex.org/W2519286724","https://openalex.org/W7167242826","https://openalex.org/W2049684627","https://openalex.org/W135375381"],"abstract_inverted_index":{"This":[0],"article":[1],"concerns":[2],"the":[3,22,38,47,50,61,76,88,94],"tomographic":[4,13,54],"reconstruction":[5,14,84],"of":[6,12,40,42,49,53,83,87,90,97],"2D":[7],"x-ray":[8],"images.":[9,99],"The":[10],"problem":[11,18,62],"is":[15],"an":[16],"inverse":[17],"i.e.":[19],"to":[20],"estimate":[21],"object":[23],"starting":[24],"from":[25],"its":[26],"projections.":[27],"In":[28],"this":[29],"work,":[30],"we":[31,72],"have":[32,73],"established":[33],"a":[34,65,80],"study":[35],"detailed":[36],"on":[37],"method":[39],"descent":[41],"gradient":[43,77],"which":[44],"lies":[45],"within":[46],"scope":[48],"iterative":[51],"methods":[52,57],"reconstruction.":[55],"These":[56],"consist":[58],"in":[59,64,85,92],"expressing":[60],"directly":[63],"discrete":[66],"form.":[67],"Through":[68],"these":[69],"simulated":[70],"results,":[71],"demonstrated":[74],"that":[75],"algorithm":[78],"offers":[79],"good":[81],"quality":[82,96],"terms":[86],"criteria":[89],"evaluation":[91],"addition":[93],"visual":[95],"reconstructed":[98]},"counts_by_year":[],"updated_date":"2026-09-21T07:43:02.447757","created_date":"2016-06-24T00:00:00"}