{"id":"https://openalex.org/W2163479845","doi":"https://doi.org/10.1109/iscas.2013.6571779","title":"HEVC-based adaptive quantization for screen content by detecting low contrast edge regions","display_name":"HEVC-based adaptive quantization for screen content by detecting low contrast edge regions","publication_year":2013,"publication_date":"2013-05-01","ids":{"openalex":"https://openalex.org/W2163479845","doi":"https://doi.org/10.1109/iscas.2013.6571779","mag":"2163479845"},"language":"en","primary_location":{"id":"doi:10.1109/iscas.2013.6571779","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscas.2013.6571779","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Symposium on Circuits and Systems (ISCAS2013)","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/A5100783301","display_name":"Hong Zhang","orcid":"https://orcid.org/0000-0002-2642-5467"},"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":"Hong Zhang","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China"],"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"]}]},{"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"],"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"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113818714","display_name":"Yongfang Shi","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":"Yongfang Shi","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China"],"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"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100432039","display_name":"Xingyu Zhang","orcid":"https://orcid.org/0000-0003-2195-8544"},"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":"Xingyu Zhang","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China"],"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"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5111982778","display_name":"Ketan Tang","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":"Ketan Tang","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China"],"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"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5030187602","display_name":"Yuanfang Guo","orcid":"https://orcid.org/0000-0003-4592-8083"},"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":"Yuanfang Guo","raw_affiliation_strings":["Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China"],"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"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5100783301"],"corresponding_institution_ids":["https://openalex.org/I200769079"],"apc_list":null,"apc_paid":null,"fwci":0.9695,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.77224343,"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":"49","last_page":"52"},"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":0.9991999864578247,"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/T11105","display_name":"Advanced Image Processing Techniques","score":0.9991999864578247,"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/computer-science","display_name":"Computer science","score":0.7340635061264038},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6615926027297974},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6345903873443604},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.5741308331489563},{"id":"https://openalex.org/keywords/contrast","display_name":"Contrast (vision)","score":0.47880396246910095},{"id":"https://openalex.org/keywords/edge-detection","display_name":"Edge detection","score":0.4346068203449249},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.4260624945163727},{"id":"https://openalex.org/keywords/image-processing","display_name":"Image processing","score":0.17352288961410522},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.13627824187278748},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.08337679505348206}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7340635061264038},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6615926027297974},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6345903873443604},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.5741308331489563},{"id":"https://openalex.org/C2776502983","wikidata":"https://www.wikidata.org/wiki/Q690182","display_name":"Contrast (vision)","level":2,"score":0.47880396246910095},{"id":"https://openalex.org/C193536780","wikidata":"https://www.wikidata.org/wiki/Q1513153","display_name":"Edge detection","level":4,"score":0.4346068203449249},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.4260624945163727},{"id":"https://openalex.org/C9417928","wikidata":"https://www.wikidata.org/wiki/Q1070689","display_name":"Image processing","level":3,"score":0.17352288961410522},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.13627824187278748},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.08337679505348206},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/iscas.2013.6571779","is_oa":false,"landing_page_url":"https://doi.org/10.1109/iscas.2013.6571779","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2013 IEEE International Symposium on Circuits and Systems (ISCAS2013)","raw_type":"proceedings-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-56981","is_oa":false,"landing_page_url":"http://repository.hkust.edu.hk/ir/Record/1783.1-56981","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":[{"score":0.7400000095367432,"display_name":"Affordable and clean energy","id":"https://metadata.un.org/sdg/7"}],"awards":[],"funders":[{"id":"https://openalex.org/F4320323537","display_name":"Hong Kong University of Science and Technology","ror":"https://ror.org/00q4vv597"},{"id":"https://openalex.org/F4320334626","display_name":"Medical Research Council","ror":"https://ror.org/03x94j517"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W1675082263","https://openalex.org/W1988812114","https://openalex.org/W2018342351","https://openalex.org/W2073640678","https://openalex.org/W2104775297","https://openalex.org/W2141608131","https://openalex.org/W2146395539","https://openalex.org/W2159611888","https://openalex.org/W2170551850"],"related_works":["https://openalex.org/W2069592018","https://openalex.org/W2075740387","https://openalex.org/W2358990940","https://openalex.org/W2093931120","https://openalex.org/W2349116365","https://openalex.org/W3021708704","https://openalex.org/W2004231473","https://openalex.org/W2060895226","https://openalex.org/W2329812990","https://openalex.org/W2151991951"],"abstract_inverted_index":{"High-Efficiency":[0],"Video":[1],"Coding":[2],"(HEVC)":[3],"is":[4,109],"the":[5,14,82,85,98,143,153,163],"newest":[6],"video":[7,35,59],"coding":[8,60],"standard":[9],"which":[10,70,125],"can":[11,126,149,160],"significantly":[12],"reduce":[13],"bit":[15],"rate":[16],"by":[17,38],"50%":[18],"compared":[19],"with":[20,165],"existing":[21],"standards.":[22],"The":[23,57],"key":[24],"features":[25],"and":[26,54,84,114,152],"new":[27],"tools":[28],"in":[29,52,74,102],"HEVC":[30,95],"are":[31,71],"designed":[32,132],"for":[33,77,111,120,134,157],"natural":[34,44],"sequences":[36],"captured":[37],"a":[39],"real":[40],"camera.":[41],"Different":[42],"from":[43],"videos,":[45],"screen":[46,75,103],"content":[47,76],"contain":[48],"much":[49],"more":[50],"edges":[51,101,148,164],"text":[53],"icon":[55],"regions.":[56],"current":[58],"standards":[61],"may":[62],"blur":[63],"or":[64],"even":[65],"remove":[66],"low":[67,99,121,146],"contrast":[68,100,122,147],"edges,":[69],"very":[72],"important":[73],"human":[78],"eyes":[79],"to":[80,96],"recognize":[81],"character":[83],"icon.":[86],"Therefore,":[87],"this":[88],"paper":[89],"proposes":[90],"an":[91],"effective":[92],"modification":[93],"on":[94,130],"preserve":[97],"content.":[104],"First,":[105],"discrete":[106],"laplacian":[107],"filter":[108],"adopted":[110],"edge":[112,123,135],"detection,":[113],"then":[115],"we":[116],"adaptively":[117],"adjust":[118],"QPs":[119,156],"regions,":[124],"be":[127,150],"detected":[128],"based":[129],"our":[131],"measurement":[133],"contrast.":[136],"Experimental":[137],"results":[138],"show":[139],"that":[140],"nearly":[141],"all":[142],"regions":[144,159],"containing":[145],"detected,":[151],"adjustment":[154],"of":[155],"these":[158],"greatly":[161],"protect":[162],"no":[166],"RD":[167],"performance":[168],"reduction.":[169]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2026-03-25T13:04:00.132906","created_date":"2025-10-10T00:00:00"}
