{"id":"https://openalex.org/W2121563456","doi":"https://doi.org/10.1109/icassp.2009.4959798","title":"Nonsubsampled higher-density discrete wavelet transform for image denoising","display_name":"Nonsubsampled higher-density discrete wavelet transform for image denoising","publication_year":2009,"publication_date":"2009-04-01","ids":{"openalex":"https://openalex.org/W2121563456","doi":"https://doi.org/10.1109/icassp.2009.4959798","mag":"2121563456"},"language":"en","primary_location":{"id":"doi:10.1109/icassp.2009.4959798","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4959798","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-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/A5111638973","display_name":"Arash Vosoughi","orcid":null},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]},{"id":"https://openalex.org/I5388228","display_name":"University of Rochester","ror":"https://ror.org/022kthw22","country_code":"US","type":"education","lineage":["https://openalex.org/I5388228"]}],"countries":["IR","US"],"is_corresponding":true,"raw_author_name":"Arash Vosoughi","raw_affiliation_strings":["Sharif University of Technology, University of Rochester","Sharif University of Technology, University of Rochester, USA"],"affiliations":[{"raw_affiliation_string":"Sharif University of Technology, University of Rochester","institution_ids":["https://openalex.org/I133529467","https://openalex.org/I5388228"]},{"raw_affiliation_string":"Sharif University of Technology, University of Rochester, USA","institution_ids":["https://openalex.org/I133529467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090323125","display_name":"Azadeh Vosoughi","orcid":"https://orcid.org/0000-0002-1937-2838"},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]},{"id":"https://openalex.org/I5388228","display_name":"University of Rochester","ror":"https://ror.org/022kthw22","country_code":"US","type":"education","lineage":["https://openalex.org/I5388228"]}],"countries":["IR","US"],"is_corresponding":false,"raw_author_name":"Azadeh Vosoughi","raw_affiliation_strings":["Sharif University of Technology, University of Rochester","Sharif University of Technology, University of Rochester, USA"],"affiliations":[{"raw_affiliation_string":"Sharif University of Technology, University of Rochester","institution_ids":["https://openalex.org/I133529467","https://openalex.org/I5388228"]},{"raw_affiliation_string":"Sharif University of Technology, University of Rochester, USA","institution_ids":["https://openalex.org/I133529467"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5021460534","display_name":"Mohammad Bagher Shamsollahi","orcid":"https://orcid.org/0000-0001-8179-2086"},"institutions":[{"id":"https://openalex.org/I133529467","display_name":"Sharif University of Technology","ror":"https://ror.org/024c2fq17","country_code":"IR","type":"education","lineage":["https://openalex.org/I133529467"]},{"id":"https://openalex.org/I5388228","display_name":"University of Rochester","ror":"https://ror.org/022kthw22","country_code":"US","type":"education","lineage":["https://openalex.org/I5388228"]}],"countries":["IR","US"],"is_corresponding":false,"raw_author_name":"Mohammad B. Shamsollahi","raw_affiliation_strings":["Sharif University of Technology, University of Rochester","Sharif University of Technology, University of Rochester, USA"],"affiliations":[{"raw_affiliation_string":"Sharif University of Technology, University of Rochester","institution_ids":["https://openalex.org/I133529467","https://openalex.org/I5388228"]},{"raw_affiliation_string":"Sharif University of Technology, University of Rochester, USA","institution_ids":["https://openalex.org/I133529467"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5111638973"],"corresponding_institution_ids":["https://openalex.org/I133529467","https://openalex.org/I5388228"],"apc_list":null,"apc_paid":null,"fwci":0.6471,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.7233572,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1173","last_page":"1176"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":0.9998999834060669,"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":0.9998999834060669,"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/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9954000115394592,"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/T10271","display_name":"Seismic Imaging and Inversion Techniques","score":0.9702000021934509,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/filter-bank","display_name":"Filter bank","score":0.6953830718994141},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.647397518157959},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.6444495320320129},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.6357128620147705},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.6130494475364685},{"id":"https://openalex.org/keywords/filter","display_name":"Filter (signal processing)","score":0.573632001876831},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5467565655708313},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5380493998527527},{"id":"https://openalex.org/keywords/discrete-wavelet-transform","display_name":"Discrete wavelet transform","score":0.5254365801811218},{"id":"https://openalex.org/keywords/invariant","display_name":"Invariant (physics)","score":0.5033521056175232},{"id":"https://openalex.org/keywords/stationary-wavelet-transform","display_name":"Stationary wavelet transform","score":0.48126763105392456},{"id":"https://openalex.org/keywords/wavelet-packet-decomposition","display_name":"Wavelet packet decomposition","score":0.4722687005996704},{"id":"https://openalex.org/keywords/video-denoising","display_name":"Video denoising","score":0.4668928384780884},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.44037970900535583},{"id":"https://openalex.org/keywords/second-generation-wavelet-transform","display_name":"Second-generation wavelet transform","score":0.4205903112888336},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.3681529760360718},{"id":"https://openalex.org/keywords/video-processing","display_name":"Video processing","score":0.05657988786697388}],"concepts":[{"id":"https://openalex.org/C100515483","wikidata":"https://www.wikidata.org/wiki/Q3268235","display_name":"Filter bank","level":3,"score":0.6953830718994141},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.647397518157959},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.6444495320320129},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.6357128620147705},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.6130494475364685},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.573632001876831},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5467565655708313},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5380493998527527},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.5254365801811218},{"id":"https://openalex.org/C190470478","wikidata":"https://www.wikidata.org/wiki/Q2370229","display_name":"Invariant (physics)","level":2,"score":0.5033521056175232},{"id":"https://openalex.org/C73339587","wikidata":"https://www.wikidata.org/wiki/Q1375942","display_name":"Stationary wavelet transform","level":5,"score":0.48126763105392456},{"id":"https://openalex.org/C155777637","wikidata":"https://www.wikidata.org/wiki/Q2736187","display_name":"Wavelet packet decomposition","level":4,"score":0.4722687005996704},{"id":"https://openalex.org/C30814859","wikidata":"https://www.wikidata.org/wiki/Q4119603","display_name":"Video denoising","level":5,"score":0.4668928384780884},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.44037970900535583},{"id":"https://openalex.org/C111350171","wikidata":"https://www.wikidata.org/wiki/Q7443700","display_name":"Second-generation wavelet transform","level":5,"score":0.4205903112888336},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.3681529760360718},{"id":"https://openalex.org/C65483669","wikidata":"https://www.wikidata.org/wiki/Q3536669","display_name":"Video processing","level":2,"score":0.05657988786697388},{"id":"https://openalex.org/C202474056","wikidata":"https://www.wikidata.org/wiki/Q1931635","display_name":"Video tracking","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/C23431618","wikidata":"https://www.wikidata.org/wiki/Q1404672","display_name":"Multiview Video Coding","level":4,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp.2009.4959798","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp.2009.4959798","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Conference on Acoustics, Speech and Signal Processing","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W59771946","https://openalex.org/W1539899277","https://openalex.org/W1971663225","https://openalex.org/W2106478881","https://openalex.org/W2113945798","https://openalex.org/W2115755118","https://openalex.org/W2118799423","https://openalex.org/W2125527601","https://openalex.org/W2131553840","https://openalex.org/W2140940213","https://openalex.org/W2152047336","https://openalex.org/W2158940042","https://openalex.org/W2163612361","https://openalex.org/W2168821074","https://openalex.org/W4210984021","https://openalex.org/W4214806317"],"related_works":["https://openalex.org/W1506615375","https://openalex.org/W1976022598","https://openalex.org/W2085792030","https://openalex.org/W1588899229","https://openalex.org/W2144408025","https://openalex.org/W2358271565","https://openalex.org/W1986475093","https://openalex.org/W2053682625","https://openalex.org/W68308810","https://openalex.org/W2066485764"],"abstract_inverted_index":{"Recently,":[0],"a":[1,17,38,52,88,95],"new":[2,53],"set":[3],"of":[4,66,105,114,130,136],"dyadic":[5,29],"wavelet":[6],"frames":[7],"based":[8],"on":[9],"oversampled":[10],"filter":[11,70,77,85],"banks":[12,78],"is":[13,35,41,62,72,91,119,132],"introduced":[14],"that":[15,90,127,135],"provides":[16],"higher":[18],"sampling":[19],"in":[20,87,121,139],"both":[21,115],"time":[22],"and":[23,101,117,138],"frequency,":[24],"compared":[25],"to":[26,56,93,134],"the":[27,63,83,94,109,128],"usual":[28],"wavelets.":[30],"This":[31],"transform":[32],"(called":[33],"HDDWT)":[34],"not":[36],"shift-invariant;":[37],"feature":[39],"which":[40,61,79],"desirable":[42],"particularly":[43],"for":[44,103],"signal":[45],"denoising.":[46,123],"In":[47],"this":[48],"paper":[49],"we":[50],"propose":[51],"transform,":[54],"referred":[55],"as":[57],"nonsubsampled":[58,76],"HDDWT":[59,84,100,116],"(NS-HDDWT),":[60],"shift-invariant":[64],"version":[65],"HDDWT.":[67],"The":[68,112],"NS-HDDWT":[69,102,118,131,142],"bank":[71,86],"built":[73],"upon":[74],"iterated":[75],"are":[80],"derived":[81],"from":[82],"way":[89],"similar":[92],"trous":[96],"algorithm.":[97],"We":[98],"employ":[99],"decomposition":[104],"images":[106],"by":[107],"performing":[108],"separable":[110],"filtering.":[111],"performance":[113,129],"assessed":[120],"image":[122,146],"Experimental":[124],"results":[125],"show":[126],"superior":[133],"HDDWT,":[137],"some":[140],"cases":[141],"outperforms":[143],"powerful":[144],"wavelet-based":[145],"denoising":[147],"methods.":[148]},"counts_by_year":[{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}