{"id":"https://openalex.org/W4362480394","doi":"https://doi.org/10.1109/lsp.2023.3264105","title":"Reduced-Reference Quality Assessment of Point Clouds via Content-Oriented Saliency Projection","display_name":"Reduced-Reference Quality Assessment of Point Clouds via Content-Oriented Saliency Projection","publication_year":2023,"publication_date":"2023-01-01","ids":{"openalex":"https://openalex.org/W4362480394","doi":"https://doi.org/10.1109/lsp.2023.3264105"},"language":"en","primary_location":{"id":"doi:10.1109/lsp.2023.3264105","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2023.3264105","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Signal Processing Letters","raw_type":"journal-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/A5077250575","display_name":"Wei Zhou","orcid":"https://orcid.org/0000-0003-3641-1429"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":true,"raw_author_name":"Wei Zhou","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030883042","display_name":"Guanghui Yue","orcid":"https://orcid.org/0000-0002-6761-8767"},"institutions":[{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guanghui Yue","raw_affiliation_strings":["School of Biomedical Engineering, Shenzhen University, Shenzhen, China"],"affiliations":[{"raw_affiliation_string":"School of Biomedical Engineering, Shenzhen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5078091606","display_name":"Ruizeng Zhang","orcid":"https://orcid.org/0009-0008-9236-8975"},"institutions":[{"id":"https://openalex.org/I125839683","display_name":"Beijing Institute of Technology","ror":"https://ror.org/01skt4w74","country_code":"CN","type":"education","lineage":["https://openalex.org/I125839683","https://openalex.org/I890469752"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruizeng Zhang","raw_affiliation_strings":["Beijing Institute of Technology, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing Institute of Technology, Beijing, China","institution_ids":["https://openalex.org/I125839683"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034416956","display_name":"Yipeng Qin","orcid":"https://orcid.org/0000-0002-1551-9126"},"institutions":[{"id":"https://openalex.org/I79510175","display_name":"Cardiff University","ror":"https://ror.org/03kk7td41","country_code":"GB","type":"education","lineage":["https://openalex.org/I79510175"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Yipeng Qin","raw_affiliation_strings":["School of Computer Science and Informatics, Cardiff University, Cardiff, U.K"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Informatics, Cardiff University, Cardiff, U.K","institution_ids":["https://openalex.org/I79510175"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101605853","display_name":"Hantao Liu","orcid":"https://orcid.org/0000-0003-4544-3481"},"institutions":[{"id":"https://openalex.org/I79510175","display_name":"Cardiff University","ror":"https://ror.org/03kk7td41","country_code":"GB","type":"education","lineage":["https://openalex.org/I79510175"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Hantao Liu","raw_affiliation_strings":["School of Computer Science and Informatics, Cardiff University, Cardiff, U.K"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Informatics, Cardiff University, Cardiff, U.K","institution_ids":["https://openalex.org/I79510175"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5077250575"],"corresponding_institution_ids":["https://openalex.org/I151746483"],"apc_list":null,"apc_paid":null,"fwci":6.2693,"has_fulltext":false,"cited_by_count":52,"citation_normalized_percentile":{"value":0.97588691,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"30","issue":null,"first_page":"354","last_page":"358"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11165","display_name":"Image and Video Quality Assessment","score":0.996399998664856,"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/T11165","display_name":"Image and Video Quality Assessment","score":0.996399998664856,"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/T10719","display_name":"3D Shape Modeling and Analysis","score":0.995199978351593,"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/T10481","display_name":"Computer Graphics and Visualization Techniques","score":0.9901999831199646,"subfield":{"id":"https://openalex.org/subfields/1704","display_name":"Computer Graphics and Computer-Aided Design"},"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/point-cloud","display_name":"Point cloud","score":0.7852441072463989},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7670751214027405},{"id":"https://openalex.org/keywords/upsampling","display_name":"Upsampling","score":0.6607376337051392},{"id":"https://openalex.org/keywords/metric","display_name":"Metric (unit)","score":0.6349671483039856},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6083313822746277},{"id":"https://openalex.org/keywords/similarity","display_name":"Similarity (geometry)","score":0.5731145739555359},{"id":"https://openalex.org/keywords/projection","display_name":"Projection (relational algebra)","score":0.5689325332641602},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.47435247898101807},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.47172942757606506},{"id":"https://openalex.org/keywords/quality","display_name":"Quality (philosophy)","score":0.4504165053367615},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.417818158864975},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.1546977460384369},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.14242294430732727},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.12448903918266296}],"concepts":[{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.7852441072463989},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7670751214027405},{"id":"https://openalex.org/C110384440","wikidata":"https://www.wikidata.org/wiki/Q1143270","display_name":"Upsampling","level":3,"score":0.6607376337051392},{"id":"https://openalex.org/C176217482","wikidata":"https://www.wikidata.org/wiki/Q860554","display_name":"Metric (unit)","level":2,"score":0.6349671483039856},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6083313822746277},{"id":"https://openalex.org/C103278499","wikidata":"https://www.wikidata.org/wiki/Q254465","display_name":"Similarity (geometry)","level":3,"score":0.5731145739555359},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.5689325332641602},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.47435247898101807},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.47172942757606506},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.4504165053367615},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.417818158864975},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.1546977460384369},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.14242294430732727},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.12448903918266296},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C21547014","wikidata":"https://www.wikidata.org/wiki/Q1423657","display_name":"Operations management","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/lsp.2023.3264105","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2023.3264105","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Signal Processing Letters","raw_type":"journal-article"},{"id":"pmh:oai:http://orca.cardiff.ac.uk:158370","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306401195","display_name":"ORCA Online Research @Cardiff (Cardiff University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I79510175","host_organization_name":"Cardiff University","host_organization_lineage":["https://openalex.org/I79510175"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6519355659","display_name":null,"funder_award_id":"2019A1515111205","funder_id":"https://openalex.org/F4320337111","funder_display_name":"Basic and Applied Basic Research Foundation of Guangdong Province"},{"id":"https://openalex.org/G7596383720","display_name":null,"funder_award_id":"62001302","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/F4320337111","display_name":"Basic and Applied Basic Research Foundation of Guangdong Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W1982471090","https://openalex.org/W1994513297","https://openalex.org/W2006502673","https://openalex.org/W2037328649","https://openalex.org/W2047255179","https://openalex.org/W2102166818","https://openalex.org/W2132549992","https://openalex.org/W2133665775","https://openalex.org/W2162692770","https://openalex.org/W2767136499","https://openalex.org/W2793293836","https://openalex.org/W2893723229","https://openalex.org/W2905544027","https://openalex.org/W2954893658","https://openalex.org/W2985655328","https://openalex.org/W2996188831","https://openalex.org/W3015751022","https://openalex.org/W3032119513","https://openalex.org/W3035130434","https://openalex.org/W3039448353","https://openalex.org/W3089343273","https://openalex.org/W3094394107","https://openalex.org/W3098825278","https://openalex.org/W3109895324","https://openalex.org/W3114811247","https://openalex.org/W3135955502","https://openalex.org/W3183144290","https://openalex.org/W3190212754","https://openalex.org/W3207150002","https://openalex.org/W3211374646","https://openalex.org/W4292347944","https://openalex.org/W4294294709","https://openalex.org/W4296715075","https://openalex.org/W6842463974"],"related_works":["https://openalex.org/W2062399876","https://openalex.org/W2607795551","https://openalex.org/W3155117723","https://openalex.org/W1991429770","https://openalex.org/W1983892167","https://openalex.org/W2281134365","https://openalex.org/W4310746709","https://openalex.org/W4385574037","https://openalex.org/W4386075645","https://openalex.org/W3176213335"],"abstract_inverted_index":{"Many":[0],"dense":[1],"3D":[2],"point":[3,25,40,61,82,106],"clouds":[4,62,83,107],"have":[5],"been":[6],"exploited":[7],"to":[8,56,84],"represent":[9],"visual":[10,97],"objects":[11],"instead":[12],"of":[13,23,78,94,104,162],"traditional":[14],"images":[15],"or":[16],"videos.":[17],"To":[18],"evaluate":[19],"the":[20,53,76,92,95,100,146,159],"perceptual":[21],"quality":[22,37,87,102,141,152],"various":[24],"clouds,":[26,41],"in":[27],"this":[28,72],"letter,":[29],"we":[30,51,74,157],"propose":[31],"a":[32,68],"novel":[33],"and":[34,59,114,125,139,143],"efficient":[35],"Reduced-Reference":[36],"metric":[38],"for":[39,86],"which":[42],"is":[43],"based":[44],"on":[45,123],"Content-oriented":[46],"sAliency":[47],"Projection":[48],"(RR-CAP).":[49],"Specifically,":[50],"make":[52],"first":[54],"attempt":[55],"simplify":[57],"reference":[58],"distorted":[60,105],"into":[63],"projected":[64],"saliency":[65],"maps":[66],"with":[67],"downsampling":[69],"operation.":[70],"Through":[71],"process,":[73],"tackle":[75],"issue":[77],"transmitting":[79],"large-volume":[80],"original":[81],"end-users":[85],"assessment.":[88],"Then,":[89],"motivated":[90],"by":[91,110,167],"characteristics":[93],"human":[96],"system":[98],"(HVS),":[99],"objective":[101],"scores":[103],"are":[108,121],"produced":[109],"combining":[111],"content-oriented":[112],"similarity":[113],"statistical":[115],"correlation":[116],"measurements.":[117],"Finally,":[118],"extensive":[119],"experiments":[120],"conducted":[122],"SJTU-PCQA":[124],"WPC":[126],"databases.":[127],"The":[128],"experiment":[129],"results":[130],"demonstrate":[131],"that":[132],"our":[133],"proposed":[134,164],"algorithm":[135],"outperforms":[136],"existing":[137],"reduced-reference":[138],"no-reference":[140],"metrics,":[142],"significantly":[144],"reduces":[145],"performance":[147,160],"gap":[148],"between":[149],"state-of-the-art":[150],"full-reference":[151],"assessment":[153],"methods.":[154],"In":[155],"addition,":[156],"show":[158],"variation":[161],"each":[163],"technical":[165],"component":[166],"ablation":[168],"tests.":[169]},"counts_by_year":[{"year":2026,"cited_by_count":5},{"year":2025,"cited_by_count":19},{"year":2024,"cited_by_count":24},{"year":2023,"cited_by_count":4}],"updated_date":"2026-03-27T14:29:43.386196","created_date":"2025-10-10T00:00:00"}