{"id":"https://openalex.org/W1561787310","doi":"https://doi.org/10.1109/pcs.2015.7170042","title":"Adaptive quantization by soft thresholding in HEVC","display_name":"Adaptive quantization by soft thresholding in HEVC","publication_year":2015,"publication_date":"2015-05-01","ids":{"openalex":"https://openalex.org/W1561787310","doi":"https://doi.org/10.1109/pcs.2015.7170042","mag":"1561787310"},"language":"en","primary_location":{"id":"doi:10.1109/pcs.2015.7170042","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pcs.2015.7170042","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 Picture Coding Symposium (PCS)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5074953269","display_name":"Lee Prangnell","orcid":"https://orcid.org/0000-0001-6185-7508"},"institutions":[{"id":"https://openalex.org/I39555362","display_name":"University of Warwick","ror":"https://ror.org/01a77tt86","country_code":"GB","type":"education","lineage":["https://openalex.org/I39555362"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Lee Prangnell","raw_affiliation_strings":["Department of Computer Science, University of Warwick, Coventry, England, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Warwick, Coventry, England, UK","institution_ids":["https://openalex.org/I39555362"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100634965","display_name":"V\u00edctor S\u00e1nchez","orcid":"https://orcid.org/0000-0002-7089-7031"},"institutions":[{"id":"https://openalex.org/I39555362","display_name":"University of Warwick","ror":"https://ror.org/01a77tt86","country_code":"GB","type":"education","lineage":["https://openalex.org/I39555362"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Victor Sanchez","raw_affiliation_strings":["Department of Computer Science, University of Warwick, Coventry, England, UK"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, University of Warwick, Coventry, England, UK","institution_ids":["https://openalex.org/I39555362"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5025148439","display_name":"Rahul Vanam","orcid":null},"institutions":[{"id":"https://openalex.org/I36326968","display_name":"InterDigital (United States)","ror":"https://ror.org/02w335z67","country_code":"US","type":"company","lineage":["https://openalex.org/I36326968"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Rahul Vanam","raw_affiliation_strings":["InterDigital Communications, Inc., San Diego, California, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"InterDigital Communications, Inc., San Diego, California, USA","institution_ids":["https://openalex.org/I36326968"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9712,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.71982759,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"35","last_page":"39"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10741","display_name":"Video Coding and Compression Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10741","display_name":"Video Coding and Compression Technologies","score":0.9998999834060669,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10531","display_name":"Advanced Vision and Imaging","score":0.9968000054359436,"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/T11165","display_name":"Image and Video Quality Assessment","score":0.9968000054359436,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.8462780714035034},{"id":"https://openalex.org/keywords/encoder","display_name":"Encoder","score":0.6787207126617432},{"id":"https://openalex.org/keywords/thresholding","display_name":"Thresholding","score":0.6559498906135559},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.5755770802497864},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5185197591781616},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.48891082406044006},{"id":"https://openalex.org/keywords/bit-rate","display_name":"Bit rate","score":0.4716041684150696},{"id":"https://openalex.org/keywords/transform-coding","display_name":"Transform coding","score":0.4177875518798828},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.4066309332847595},{"id":"https://openalex.org/keywords/discrete-cosine-transform","display_name":"Discrete cosine transform","score":0.36874616146087646},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3288625478744507},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.14963653683662415},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.13149526715278625}],"concepts":[{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.8462780714035034},{"id":"https://openalex.org/C118505674","wikidata":"https://www.wikidata.org/wiki/Q42586063","display_name":"Encoder","level":2,"score":0.6787207126617432},{"id":"https://openalex.org/C191178318","wikidata":"https://www.wikidata.org/wiki/Q2256906","display_name":"Thresholding","level":3,"score":0.6559498906135559},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.5755770802497864},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5185197591781616},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.48891082406044006},{"id":"https://openalex.org/C2987812609","wikidata":"https://www.wikidata.org/wiki/Q194158","display_name":"Bit rate","level":2,"score":0.4716041684150696},{"id":"https://openalex.org/C169805256","wikidata":"https://www.wikidata.org/wiki/Q1361381","display_name":"Transform coding","level":4,"score":0.4177875518798828},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.4066309332847595},{"id":"https://openalex.org/C2221639","wikidata":"https://www.wikidata.org/wiki/Q2877","display_name":"Discrete cosine transform","level":3,"score":0.36874616146087646},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3288625478744507},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.14963653683662415},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.13149526715278625},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/pcs.2015.7170042","is_oa":false,"landing_page_url":"https://doi.org/10.1109/pcs.2015.7170042","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 Picture Coding Symposium (PCS)","raw_type":"proceedings-article"},{"id":"pmh:oai:CiteSeerX.psu:10.1.1.664.6361","is_oa":false,"landing_page_url":"http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.664.6361","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"http://wrap.warwick.ac.uk/64376/8/WRAP_Pragnell_Adaptive_Quantization_by_Soft_Thresholding_in_HEVC.pdf","raw_type":"text"},{"id":"pmh:oai:wrap.warwick.ac.uk:64376","is_oa":false,"landing_page_url":"http://wrap.warwick.ac.uk/64376/1/WRAP_adaptive_quantization_by_soft_thresholding_in_hevc%20%282%29.pdf","pdf_url":"http://wrap.warwick.ac.uk/64376/1/WRAP_adaptive_quantization_by_soft_thresholding_in_hevc%20%282%29.pdf","source":{"id":"https://openalex.org/S4306400665","display_name":"Warwick Research Archive Portal (University of Warwick)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I39555362","host_organization_name":"University of Warwick","host_organization_lineage":["https://openalex.org/I39555362"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Conference Item"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.8299999833106995,"display_name":"Affordable and clean energy"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320334627","display_name":"Engineering and Physical Sciences Research Council","ror":"https://ror.org/0439y7842"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":12,"referenced_works":["https://openalex.org/W1973118007","https://openalex.org/W1984451638","https://openalex.org/W1985028362","https://openalex.org/W2037269559","https://openalex.org/W2042720142","https://openalex.org/W2083649065","https://openalex.org/W2084086197","https://openalex.org/W2106339590","https://openalex.org/W2146395539","https://openalex.org/W2979673094","https://openalex.org/W2979990382","https://openalex.org/W6769015554"],"related_works":["https://openalex.org/W2094583657","https://openalex.org/W1594300462","https://openalex.org/W1606460848","https://openalex.org/W2158009109","https://openalex.org/W2115252864","https://openalex.org/W1706111048","https://openalex.org/W2129927873","https://openalex.org/W2112852877","https://openalex.org/W2772846670","https://openalex.org/W2034796835"],"abstract_inverted_index":{"The":[0,85],"High":[1],"Efficiency":[2],"Video":[3],"Coding":[4],"(HEVC)":[5],"reference":[6,106],"encoder":[7,107],"includes":[8],"a":[9,40,48,59],"Uniform":[10],"Reconstruction":[11],"Quantization":[12],"(URQ)":[13],"method.":[14],"This":[15],"block":[16],"level":[17,43],"quantization":[18,44,55],"technique":[19,45,111],"does":[20],"not":[21],"take":[22],"into":[23],"account":[24],"the":[25,54,69,76,80,97,131],"importance":[26,67],"of":[27,32,58,79,143],"transform":[28,41,60],"coefficients":[29],"in":[30,52,68,119,127],"terms":[31],"signal":[33,70],"reconstruction.":[34],"In":[35,103],"this":[36],"paper,":[37],"we":[38],"present":[39],"coefficient":[42,61],"based":[46],"on":[47],"soft":[49],"thresholding":[50],"approach,":[51],"which":[53],"parameter":[56],"(QP)":[57],"is":[62],"altered":[63],"according":[64,74],"to":[65,75,145],"its":[66],"reconstruction":[71],"process":[72],"and":[73,115,135,150],"overall":[77],"energy":[78],"corresponding":[81],"Transform":[82],"Block":[83],"(TB).":[84],"proposed":[86],"method":[87],"attains":[88],"important":[89],"coding":[90],"efficiency":[91],"performance":[92],"gains":[93],"as":[94],"measured":[95],"by":[96],"Bj\u00f8ntegaard":[98],"Delta":[99],"Bitrate":[100],"metric":[101],"(BD-Rate).":[102],"comparison":[104],"with":[105,140],"HM":[108],"16,":[109],"our":[110],"produces":[112],"both":[113],"luma":[114],"chroma":[116],"BD-Rate":[117,141],"improvements":[118],"all":[120],"JCT-VC":[121],"test":[122],"sequences,":[123],"particularly":[124],"for":[125],"sequences":[126],"Class":[128],"E":[129],"using":[130],"Low":[132,136],"Delay":[133,137],"B":[134],"P":[138],"configurations,":[139],"reductions":[142],"up":[144],"5.5%":[146],"(Y),":[147],"13.2%":[148],"(Cb)":[149],"11.7%":[151],"(Cr).":[152]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":2},{"year":2016,"cited_by_count":1}],"updated_date":"2026-08-11T07:18:39.950985","created_date":"2025-10-10T00:00:00"}