{"id":"https://openalex.org/W2062286073","doi":"https://doi.org/10.1155/2012/467412","title":"Spatial Images Feature Extraction Based on Bayesian Nonlocal Means Filter and Improved Contourlet Transform","display_name":"Spatial Images Feature Extraction Based on Bayesian Nonlocal Means Filter and Improved Contourlet Transform","publication_year":2012,"publication_date":"2012-01-01","ids":{"openalex":"https://openalex.org/W2062286073","doi":"https://doi.org/10.1155/2012/467412","mag":"2062286073"},"language":"en","primary_location":{"id":"doi:10.1155/2012/467412","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2012/467412","pdf_url":"https://downloads.hindawi.com/journals/jam/2012/467412.pdf","source":{"id":"https://openalex.org/S190082376","display_name":"Journal of Applied Mathematics","issn_l":"1110-757X","issn":["1110-757X","1687-0042"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Applied Mathematics","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://downloads.hindawi.com/journals/jam/2012/467412.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100804822","display_name":"Pengcheng Han","orcid":null},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Pengcheng Han","raw_affiliation_strings":["Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China","Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science Beijing University of Posts and Telecommunications, Beijing, 100876, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science Beijing University of Posts and Telecommunications, Beijing, 100876, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100663191","display_name":"Junping Du","orcid":"https://orcid.org/0000-0002-9402-3806"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junping Du","raw_affiliation_strings":["Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China","Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science Beijing University of Posts and Telecommunications, Beijing, 100876, China"],"affiliations":[{"raw_affiliation_string":"Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science, Beijing University of Posts and Telecommunications, Beijing 100876, China","institution_ids":["https://openalex.org/I139759216"]},{"raw_affiliation_string":"Beijing Key Laboratory of Intelligent Telecommunication Software and Multimedia, School of Computer Science Beijing University of Posts and Telecommunications, Beijing, 100876, China","institution_ids":["https://openalex.org/I139759216"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100804822"],"corresponding_institution_ids":["https://openalex.org/I139759216"],"apc_list":{"value":1025,"currency":"USD","value_usd":1025},"apc_paid":{"value":1025,"currency":"USD","value_usd":1025},"fwci":1.5617,"has_fulltext":true,"cited_by_count":6,"citation_normalized_percentile":{"value":0.85436003,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":"2012","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/T10688","display_name":"Image and Signal Denoising Methods","score":0.9997000098228455,"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/T10689","display_name":"Remote-Sensing Image Classification","score":0.9968000054359436,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/contourlet","display_name":"Contourlet","score":0.978821337223053},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.7698829174041748},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6904946565628052},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.584274411201477},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.570861279964447},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.5078807473182678},{"id":"https://openalex.org/keywords/invariant","display_name":"Invariant (physics)","score":0.5040606260299683},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.4763132333755493},{"id":"https://openalex.org/keywords/curvelet","display_name":"Curvelet","score":0.4326653778553009},{"id":"https://openalex.org/keywords/translation","display_name":"Translation (biology)","score":0.41287389397621155},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.3893417716026306},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3815402090549469}],"concepts":[{"id":"https://openalex.org/C20479862","wikidata":"https://www.wikidata.org/wiki/Q5165589","display_name":"Contourlet","level":4,"score":0.978821337223053},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7698829174041748},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6904946565628052},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.584274411201477},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.570861279964447},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.5078807473182678},{"id":"https://openalex.org/C190470478","wikidata":"https://www.wikidata.org/wiki/Q2370229","display_name":"Invariant (physics)","level":2,"score":0.5040606260299683},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.4763132333755493},{"id":"https://openalex.org/C131720326","wikidata":"https://www.wikidata.org/wiki/Q5196075","display_name":"Curvelet","level":4,"score":0.4326653778553009},{"id":"https://openalex.org/C149364088","wikidata":"https://www.wikidata.org/wiki/Q185917","display_name":"Translation (biology)","level":4,"score":0.41287389397621155},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.3893417716026306},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3815402090549469},{"id":"https://openalex.org/C105580179","wikidata":"https://www.wikidata.org/wiki/Q188928","display_name":"Messenger RNA","level":3,"score":0.0},{"id":"https://openalex.org/C37914503","wikidata":"https://www.wikidata.org/wiki/Q156495","display_name":"Mathematical physics","level":1,"score":0.0},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0}],"mesh":[],"locations_count":4,"locations":[{"id":"doi:10.1155/2012/467412","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2012/467412","pdf_url":"https://downloads.hindawi.com/journals/jam/2012/467412.pdf","source":{"id":"https://openalex.org/S190082376","display_name":"Journal of Applied Mathematics","issn_l":"1110-757X","issn":["1110-757X","1687-0042"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Applied Mathematics","raw_type":"journal-article"},{"id":"pmh:oai:CULeuclid:euclid.jam/1357178257","is_oa":false,"landing_page_url":"http://projecteuclid.org/euclid.jam/1357178257","pdf_url":null,"source":{"id":"https://openalex.org/S4306400787","display_name":"Project Euclid (Cornell University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I205783295","host_organization_name":"Cornell University","host_organization_lineage":["https://openalex.org/I205783295"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Text"},{"id":"pmh:oai:RePEc:hin:jnljam:467412","is_oa":false,"landing_page_url":"http://downloads.hindawi.com/journals/JAM/2012/467412.xml","pdf_url":null,"source":{"id":"https://openalex.org/S4306401271","display_name":"RePEc: Research Papers in Economics","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I77793887","host_organization_name":"Federal Reserve Bank of St. Louis","host_organization_lineage":["https://openalex.org/I77793887"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"article"},{"id":"pmh:oai:doaj.org/article:8d6a36db4efd4ffd935e083cb74540a3","is_oa":true,"landing_page_url":"https://doaj.org/article/8d6a36db4efd4ffd935e083cb74540a3","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Journal of Applied Mathematics, Vol 2012 (2012)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1155/2012/467412","is_oa":true,"landing_page_url":"https://doi.org/10.1155/2012/467412","pdf_url":"https://downloads.hindawi.com/journals/jam/2012/467412.pdf","source":{"id":"https://openalex.org/S190082376","display_name":"Journal of Applied Mathematics","issn_l":"1110-757X","issn":["1110-757X","1687-0042"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319869","host_organization_name":"Hindawi Publishing Corporation","host_organization_lineage":["https://openalex.org/P4310319869"],"host_organization_lineage_names":["Hindawi Publishing Corporation"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Journal of Applied Mathematics","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.6200000047683716,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[{"id":"https://openalex.org/G1121271761","display_name":null,"funder_award_id":"Program","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1201718356","display_name":null,"funder_award_id":"4111002","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G1828425977","display_name":null,"funder_award_id":"973 Program","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1913007757","display_name":null,"funder_award_id":"2012CB821206","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G2087396116","display_name":null,"funder_award_id":"China","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2143121220","display_name":null,"funder_award_id":"61070142","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2263187964","display_name":null,"funder_award_id":"61070142","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G2302356869","display_name":null,"funder_award_id":"61070142","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G2732064016","display_name":null,"funder_award_id":"91024001","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G3317480652","display_name":null,"funder_award_id":"Science","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3453060888","display_name":null,"funder_award_id":"111002","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G3469361591","display_name":null,"funder_award_id":"2012CB821206","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3524141935","display_name":null,"funder_award_id":"4111002","funder_id":"https://openalex.org/F4320335777","funder_display_name":"National Key Research and Development Program of China"},{"id":"https://openalex.org/G3632765321","display_name":null,"funder_award_id":"2012CB821206","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G391238517","display_name":null,"funder_award_id":", and","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G5994120800","display_name":null,"funder_award_id":"Natural","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6100908006","display_name":null,"funder_award_id":"111002","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6511679323","display_name":null,"funder_award_id":"4111002","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6821320312","display_name":null,"funder_award_id":"91024001","funder_id":"https://openalex.org/F4320322919","funder_display_name":"Natural Science Foundation of Beijing Municipality"},{"id":"https://openalex.org/G950955218","display_name":null,"funder_award_id":"91024001","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/F4320322919","display_name":"Natural Science Foundation of Beijing Municipality","ror":null},{"id":"https://openalex.org/F4320335777","display_name":"National Key Research and Development Program of China","ror":null}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2062286073.pdf","grobid_xml":"https://content.openalex.org/works/W2062286073.grobid-xml"},"referenced_works_count":29,"referenced_works":["https://openalex.org/W1485280399","https://openalex.org/W1980186829","https://openalex.org/W1987317296","https://openalex.org/W2027096641","https://openalex.org/W2028955956","https://openalex.org/W2069912449","https://openalex.org/W2085088008","https://openalex.org/W2096413230","https://openalex.org/W2096613063","https://openalex.org/W2103504761","https://openalex.org/W2106002835","https://openalex.org/W2107790757","https://openalex.org/W2112545418","https://openalex.org/W2116988482","https://openalex.org/W2117853853","https://openalex.org/W2119409963","https://openalex.org/W2120041316","https://openalex.org/W2122632184","https://openalex.org/W2128989367","https://openalex.org/W2129654227","https://openalex.org/W2136396015","https://openalex.org/W2137290314","https://openalex.org/W2137901785","https://openalex.org/W2146520413","https://openalex.org/W2156668482","https://openalex.org/W2161037052","https://openalex.org/W2162387130","https://openalex.org/W2294576049","https://openalex.org/W4302067267"],"related_works":["https://openalex.org/W2425229296","https://openalex.org/W2090236240","https://openalex.org/W2122170879","https://openalex.org/W3150496279","https://openalex.org/W2236419488","https://openalex.org/W2899721898","https://openalex.org/W2325058018","https://openalex.org/W2561072616","https://openalex.org/W3169504989","https://openalex.org/W3016367246"],"abstract_inverted_index":{"Spatial":[0],"images":[1,21,124,127],"are":[2],"inevitably":[3],"mixed":[4],"with":[5],"different":[6,79],"levels":[7],"of":[8,20,27],"noise":[9],"and":[10,46,54,110,125,142],"distortion.":[11],"The":[12,81,102],"contourlet":[13,32,63],"transform":[14,33,64],"can":[15,94],"provide":[16],"multidimensional":[17,53],"sparse":[18],"representations":[19],"in":[22,88,98],"a":[23,42,47,85,90],"discrete":[24],"domain.":[25],"Because":[26],"its":[28],"filter":[29,50,77,104],"structure,":[30],"the":[31,68,106,130],"is":[34,65],"not":[35],"translation\u2010invariant.":[36],"In":[37],"this":[38],"paper,":[39],"we":[40],"use":[41],"nonsubsampled":[43,48,62,138],"pyramid":[44],"structure":[45],"directional":[49],"to":[51,114],"achieve":[52],"translation\u2010invariant":[55],"image":[56,89,100,107],"decomposition":[57],"for":[58,70,78,116],"spatial":[59,126],"images.":[60],"A":[61],"used":[66],"as":[67],"basis":[69],"an":[71],"improved":[72],"Bayesian":[73,82],"nonlocal":[74],"means":[75],"(NLM)":[76],"frequencies.":[80],"model":[83],"adds":[84],"sigma":[86],"range":[87],"priori":[91],"operations,":[92],"which":[93],"be":[95],"more":[96],"effective":[97],"protecting":[99],"details.":[101],"NLM":[103],"retains":[105],"edge":[108,117],"content":[109],"assigns":[111],"greater":[112],"weight":[113],"similarities":[115],"pixels.":[118],"Experimental":[119],"results":[120],"both":[121],"on":[122],"standard":[123],"confirm":[128],"that":[129],"proposed":[131],"algorithm":[132],"yields":[133],"significantly":[134],"better":[135],"performance":[136],"than":[137],"wavelet":[139],"transform,":[140],"contourlet,":[141],"curvelet":[143],"approaches.":[144]},"counts_by_year":[{"year":2019,"cited_by_count":1},{"year":2017,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2026-04-13T07:58:08.660418","created_date":"2025-10-10T00:00:00"}
