{"id":"https://openalex.org/W2112643157","doi":"https://doi.org/10.1109/mmsp.2009.5293567","title":"A fast NL-Means method in image denoising based on the similarity of spatially sampled pixels","display_name":"A fast NL-Means method in image denoising based on the similarity of spatially sampled pixels","publication_year":2009,"publication_date":"2009-10-01","ids":{"openalex":"https://openalex.org/W2112643157","doi":"https://doi.org/10.1109/mmsp.2009.5293567","mag":"2112643157"},"language":"en","primary_location":{"id":"doi:10.1109/mmsp.2009.5293567","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mmsp.2009.5293567","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Workshop on Multimedia 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/A5024714464","display_name":"Chao Pang","orcid":"https://orcid.org/0000-0003-3501-2960"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Chao Pang","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]},{"raw_affiliation_string":"Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010546001","display_name":"Oscar C. Au","orcid":null},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Oscar C. Au","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]},{"raw_affiliation_string":"Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100885091","display_name":"Jingjing Dai","orcid":"https://orcid.org/0000-0003-3837-2857"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Jingjing Dai","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]},{"raw_affiliation_string":"Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5120542135","display_name":"Wen Yang","orcid":null},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Wen Yang","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]},{"raw_affiliation_string":"Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong","institution_ids":["https://openalex.org/I200769079"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5029410135","display_name":"Feng Zou","orcid":"https://orcid.org/0000-0001-5373-8779"},"institutions":[{"id":"https://openalex.org/I200769079","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597","country_code":"HK","type":"education","lineage":["https://openalex.org/I200769079"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Feng Zou","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong"],"affiliations":[{"raw_affiliation_string":"Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China","institution_ids":["https://openalex.org/I200769079"]},{"raw_affiliation_string":"Department of Electronic and Computer Engineering; Hong Kong University of Science and Technology; Clear Water Bay Kowloon,Hong-Kong","institution_ids":["https://openalex.org/I200769079"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5024714464"],"corresponding_institution_ids":["https://openalex.org/I200769079"],"apc_list":null,"apc_paid":null,"fwci":0.9841,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.78548344,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"4"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10688","display_name":"Image and Signal Denoising Methods","score":1.0,"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":1.0,"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/T10500","display_name":"Sparse and Compressive Sensing Techniques","score":0.9986000061035156,"subfield":{"id":"https://openalex.org/subfields/2206","display_name":"Computational Mechanics"},"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/T11659","display_name":"Advanced Image Fusion Techniques","score":0.9973000288009644,"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/pixel","display_name":"Pixel","score":0.7761979103088379},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.6681215167045593},{"id":"https://openalex.org/keywords/noise-reduction","display_name":"Noise reduction","score":0.6613946557044983},{"id":"https://openalex.org/keywords/non-local-means","display_name":"Non-local means","score":0.6519447565078735},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6510327458381653},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.5877466797828674},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.558107316493988},{"id":"https://openalex.org/keywords/noise","display_name":"Noise (video)","score":0.5535451173782349},{"id":"https://openalex.org/keywords/image-denoising","display_name":"Image denoising","score":0.49238431453704834},{"id":"https://openalex.org/keywords/variance","display_name":"Variance (accounting)","score":0.4919240474700928},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.4808143377304077},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.4388258159160614},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.42415085434913635},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.36697402596473694}],"concepts":[{"id":"https://openalex.org/C160633673","wikidata":"https://www.wikidata.org/wiki/Q355198","display_name":"Pixel","level":2,"score":0.7761979103088379},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.6681215167045593},{"id":"https://openalex.org/C163294075","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Noise reduction","level":2,"score":0.6613946557044983},{"id":"https://openalex.org/C101453961","wikidata":"https://www.wikidata.org/wiki/Q7048948","display_name":"Non-local means","level":4,"score":0.6519447565078735},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6510327458381653},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.5877466797828674},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.558107316493988},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.5535451173782349},{"id":"https://openalex.org/C2983327147","wikidata":"https://www.wikidata.org/wiki/Q581861","display_name":"Image denoising","level":3,"score":0.49238431453704834},{"id":"https://openalex.org/C196083921","wikidata":"https://www.wikidata.org/wiki/Q7915758","display_name":"Variance (accounting)","level":2,"score":0.4919240474700928},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.4808143377304077},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4388258159160614},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.42415085434913635},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.36697402596473694},{"id":"https://openalex.org/C121955636","wikidata":"https://www.wikidata.org/wiki/Q4116214","display_name":"Accounting","level":1,"score":0.0},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/mmsp.2009.5293567","is_oa":false,"landing_page_url":"https://doi.org/10.1109/mmsp.2009.5293567","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2009 IEEE International Workshop on Multimedia Signal Processing","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-51924","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-51924","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"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":"Conference paper"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11","score":0.5799999833106995}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2083303215","https://openalex.org/W2098237619","https://openalex.org/W2101015440","https://openalex.org/W2132680427","https://openalex.org/W2137901785","https://openalex.org/W2146842127","https://openalex.org/W2153663612","https://openalex.org/W2168226778","https://openalex.org/W6671071633"],"related_works":["https://openalex.org/W2098237619","https://openalex.org/W1538114257","https://openalex.org/W3046917719","https://openalex.org/W2097073572","https://openalex.org/W2035842925","https://openalex.org/W2810018092","https://openalex.org/W4287081060","https://openalex.org/W2001438600","https://openalex.org/W2360732716","https://openalex.org/W2392458921"],"abstract_inverted_index":{"As":[0],"one":[1],"of":[2,47,82],"the":[3,8,22,45,58,67,91,95],"best":[4],"image":[5],"denoising":[6],"methods,":[7],"Non-Local":[9],"Means(NL-Means)algorithm[5]":[10],"proposed":[11],"by":[12],"Buades":[13],"et":[14],"al.":[15],"generates":[16],"state-of-the-art":[17],"performance.":[18],"However,":[19],"due":[20],"to":[21,29],"high":[23],"computational":[24],"complexity,":[25],"it":[26,71],"is":[27,51,98],"difficult":[28],"be":[30,86],"directly":[31],"used":[32],"in":[33,88],"practical":[34],"applications.":[35],"In":[36],"this":[37],"paper,":[38],"a":[39,73],"novel":[40],"fast":[41,56],"algorithm":[42],"based":[43],"on":[44],"similarity":[46],"spatially":[48],"sampled":[49],"pixels":[50],"introduced.":[52],"Compared":[53],"with":[54,90],"other":[55],"approaches,":[57],"result":[59],"has":[60],"shown":[61],"that":[62],"our":[63],"method":[64,93],"always":[65],"uses":[66],"shortest":[68],"time.":[69],"Meanwhile,":[70],"keeps":[72],"similar":[74],"or":[75],"even":[76],"better":[77],"visual":[78],"results.":[79],"A":[80],"maximum":[81],"0.9dB":[83],"improvement":[84],"can":[85],"attained":[87],"comparison":[89],"original":[92],"when":[94],"noise":[96],"variance":[97],"small.":[99]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":3},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3},{"year":2017,"cited_by_count":4},{"year":2016,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2013,"cited_by_count":1},{"year":2012,"cited_by_count":2}],"updated_date":"2026-04-19T08:26:33.389920","created_date":"2025-10-10T00:00:00"}