{"id":"https://openalex.org/W7083321715","doi":"https://doi.org/10.1109/tmm.2025.3613122","title":"Projection Difference-Guided Geometry Quality Enhancement for Video-Based Point Cloud Compression","display_name":"Projection Difference-Guided Geometry Quality Enhancement for Video-Based Point Cloud Compression","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W7083321715","doi":"https://doi.org/10.1109/tmm.2025.3613122"},"language":"en","primary_location":{"id":"doi:10.1109/tmm.2025.3613122","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmm.2025.3613122","pdf_url":null,"source":{"id":"https://openalex.org/S137030581","display_name":"IEEE Transactions on Multimedia","issn_l":"1520-9210","issn":["1520-9210","1941-0077"],"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 Transactions on Multimedia","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":null,"display_name":"Yu Liu","orcid":"https://orcid.org/0009-0000-2391-5017"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yu Liu","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0009-0000-2391-5017","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Jingwei Bao","orcid":null},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jingwei Bao","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Zeliang Li","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Zeliang Li","raw_affiliation_strings":["School of Science and Technology, Hong Kong Metropolitan University, Hong Kong SAR, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Science and Technology, Hong Kong Metropolitan University, Hong Kong SAR, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":null,"display_name":"Qiang Zhu","orcid":"https://orcid.org/0000-0003-2959-0641"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qiang Zhu","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0003-2959-0641","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Shuyuan Zhu","orcid":"https://orcid.org/0000-0003-4450-3868"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuyuan Zhu","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0003-4450-3868","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Siu-Kei Au Yeung","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Siu-Kei Au Yeung","raw_affiliation_strings":["School of Science and Technology, Hong Kong Metropolitan University, Hong Kong SAR, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Science and Technology, Hong Kong Metropolitan University, Hong Kong SAR, China","institution_ids":[]}]},{"author_position":"last","author":{"id":null,"display_name":"Bing Zeng","orcid":"https://orcid.org/0000-0002-4491-7967"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bing Zeng","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-4491-7967","affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I150229711"],"apc_list":null,"apc_paid":null,"fwci":2.1733,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.92574223,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":"27","issue":null,"first_page":"9214","last_page":"9226"},"is_retracted":false,"is_paratext":false,"is_xpac":true,"primary_topic":{"id":"https://openalex.org/T12157","display_name":"Geochemistry and Geologic Mapping","score":0.6477000117301941,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T12157","display_name":"Geochemistry and Geologic Mapping","score":0.6477000117301941,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T13067","display_name":"Geological Modeling and Analysis","score":0.02419999986886978,"subfield":{"id":"https://openalex.org/subfields/1906","display_name":"Geochemistry and Petrology"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T14311","display_name":"Electrical and Electromagnetic Research","score":0.019700000062584877,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.8331999778747559},{"id":"https://openalex.org/keywords/lossy-compression","display_name":"Lossy compression","score":0.7415000200271606},{"id":"https://openalex.org/keywords/compression","display_name":"Compression (physics)","score":0.5927000045776367},{"id":"https://openalex.org/keywords/data-compression","display_name":"Data compression","score":0.5266000032424927},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.5230000019073486},{"id":"https://openalex.org/keywords/frame","display_name":"Frame (networking)","score":0.45829999446868896},{"id":"https://openalex.org/keywords/lossless-compression","display_name":"Lossless compression","score":0.4163999855518341},{"id":"https://openalex.org/keywords/compressed-sensing","display_name":"Compressed sensing","score":0.39719998836517334}],"concepts":[{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.8331999778747559},{"id":"https://openalex.org/C165021410","wikidata":"https://www.wikidata.org/wiki/Q55564","display_name":"Lossy compression","level":2,"score":0.7415000200271606},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.720300018787384},{"id":"https://openalex.org/C180016635","wikidata":"https://www.wikidata.org/wiki/Q2712821","display_name":"Compression (physics)","level":2,"score":0.5927000045776367},{"id":"https://openalex.org/C78548338","wikidata":"https://www.wikidata.org/wiki/Q2493","display_name":"Data compression","level":2,"score":0.5266000032424927},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.5230000019073486},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.4830999970436096},{"id":"https://openalex.org/C126042441","wikidata":"https://www.wikidata.org/wiki/Q1324888","display_name":"Frame (networking)","level":2,"score":0.45829999446868896},{"id":"https://openalex.org/C81081738","wikidata":"https://www.wikidata.org/wiki/Q55542","display_name":"Lossless compression","level":3,"score":0.4163999855518341},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.40549999475479126},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.3984000086784363},{"id":"https://openalex.org/C124851039","wikidata":"https://www.wikidata.org/wiki/Q2665459","display_name":"Compressed sensing","level":2,"score":0.39719998836517334},{"id":"https://openalex.org/C57654395","wikidata":"https://www.wikidata.org/wiki/Q1097775","display_name":"Compression artifact","level":5,"score":0.3849000036716461},{"id":"https://openalex.org/C57493831","wikidata":"https://www.wikidata.org/wiki/Q3134666","display_name":"Projection (relational algebra)","level":2,"score":0.3790000081062317},{"id":"https://openalex.org/C2779530757","wikidata":"https://www.wikidata.org/wiki/Q1207505","display_name":"Quality (philosophy)","level":2,"score":0.36070001125335693},{"id":"https://openalex.org/C25797200","wikidata":"https://www.wikidata.org/wiki/Q828137","display_name":"Compression ratio","level":3,"score":0.3497999906539917},{"id":"https://openalex.org/C13481523","wikidata":"https://www.wikidata.org/wiki/Q412438","display_name":"Image compression","level":4,"score":0.2985000014305115},{"id":"https://openalex.org/C2780801425","wikidata":"https://www.wikidata.org/wiki/Q5164392","display_name":"Construct (python library)","level":2,"score":0.29580000042915344},{"id":"https://openalex.org/C204641915","wikidata":"https://www.wikidata.org/wiki/Q7315509","display_name":"Residual frame","level":4,"score":0.29120001196861267},{"id":"https://openalex.org/C169805256","wikidata":"https://www.wikidata.org/wiki/Q1361381","display_name":"Transform coding","level":4,"score":0.28290000557899475},{"id":"https://openalex.org/C55020928","wikidata":"https://www.wikidata.org/wiki/Q3813865","display_name":"Image quality","level":3,"score":0.28189998865127563},{"id":"https://openalex.org/C25227671","wikidata":"https://www.wikidata.org/wiki/Q13405516","display_name":"Near and far field","level":2,"score":0.2741999924182892},{"id":"https://openalex.org/C94835093","wikidata":"https://www.wikidata.org/wiki/Q3113333","display_name":"Data compression ratio","level":5,"score":0.25380000472068787}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tmm.2025.3613122","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmm.2025.3613122","pdf_url":null,"source":{"id":"https://openalex.org/S137030581","display_name":"IEEE Transactions on Multimedia","issn_l":"1520-9210","issn":["1520-9210","1941-0077"],"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 Transactions on Multimedia","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8366541121","display_name":null,"funder_award_id":"2023NSFSC1972","funder_id":"https://openalex.org/F4320329861","funder_display_name":"Natural Science Foundation of Sichuan Province"}],"funders":[{"id":"https://openalex.org/F4320329861","display_name":"Natural Science Foundation of Sichuan Province","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":42,"referenced_works":["https://openalex.org/W1498318113","https://openalex.org/W2075821118","https://openalex.org/W2146395539","https://openalex.org/W2319503556","https://openalex.org/W2530750588","https://openalex.org/W2555618208","https://openalex.org/W2558294288","https://openalex.org/W2617605942","https://openalex.org/W2890661530","https://openalex.org/W2922745530","https://openalex.org/W2962735969","https://openalex.org/W2964387279","https://openalex.org/W2966379582","https://openalex.org/W2976304245","https://openalex.org/W2982170926","https://openalex.org/W2994763827","https://openalex.org/W2998115525","https://openalex.org/W3035428054","https://openalex.org/W3046961466","https://openalex.org/W3096678291","https://openalex.org/W3113844551","https://openalex.org/W3159975835","https://openalex.org/W3161580547","https://openalex.org/W3166285241","https://openalex.org/W3176667331","https://openalex.org/W3179630053","https://openalex.org/W3195128047","https://openalex.org/W3195144039","https://openalex.org/W3205122979","https://openalex.org/W3207918547","https://openalex.org/W3215023725","https://openalex.org/W3216006369","https://openalex.org/W4221156617","https://openalex.org/W4297330280","https://openalex.org/W4308237305","https://openalex.org/W4310591442","https://openalex.org/W4312068983","https://openalex.org/W4387250426","https://openalex.org/W4388519997","https://openalex.org/W4390534472","https://openalex.org/W4391342698","https://openalex.org/W4392173736"],"related_works":[],"abstract_inverted_index":{"Video-based":[0],"point":[1,15,19,56,81,213],"cloud":[2],"compression":[3,11,33],"(V-PCC)":[4],"developed":[5],"by":[6,22,94,216],"MPEG":[7],"has":[8],"achieved":[9],"remarkable":[10],"efficiency":[12],"for":[13,52,131],"dynamic":[14],"clouds.":[16,82],"However,":[17],"the":[18,31,53,63,71,88,95,114,126,132,135,142,163,171,185,210],"clouds":[20,57,214],"compressed":[21,55,215],"V-PCC":[23,54],"still":[24],"suffer":[25],"from":[26],"serious":[27],"artifacts":[28],"due":[29],"to":[30,70,86,112,148,161,183],"lossy":[32],"and":[34,58,75,118,152,190,208],"lose":[35],"a":[36,46,106,177,202],"large":[37,203],"number":[38,204],"of":[39,90,128,134,188,205,212],"points.":[40,65,138],"In":[41],"this":[42],"paper,":[43],"we":[44,103,140,173],"propose":[45,141],"new":[47],"geometry":[48],"quality":[49,89,144,179,211],"enhancement":[50,127,145,180,187],"method":[51,67,198],"it":[59,175],"can":[60,199],"effectively":[61,200],"recover":[62,201],"lost":[64,136,206],"Our":[66],"is":[68,84,123],"applied":[69],"2D":[72,91,129],"projected":[73],"near":[74,117,151,189],"far":[76,119,153,191],"frames":[77,157],"rather":[78],"than":[79],"3D":[80,137],"It":[83],"designed":[85],"enhance":[87,150],"frames,":[92,130],"guided":[93],"predicted":[96],"difference":[97,108,115,122,166],"information":[98],"between":[99,116],"them.":[100],"More":[101],"specifically,":[102],"firstly":[104],"construct":[105],"gradient-based":[107],"prediction":[109],"network":[110,146,181],"(G-DPnet)":[111],"predict":[113],"frames.":[120,154,192],"This":[121],"introduced":[124],"in":[125],"recovery":[133],"Meanwhile,":[139],"single-frame":[143],"(SFQEnet)":[147],"separately":[149],"The":[155],"enhanced":[156],"are":[158],"then":[159],"used":[160],"produce":[162],"near-far":[164],"frame":[165],"with":[167],"G-DPnet.":[168],"After":[169],"obtaining":[170],"difference,":[172],"feed":[174],"into":[176],"dualframe":[178],"(DFQEnet)":[182],"guide":[184],"further":[186],"Experimental":[193],"results":[194],"demonstrate":[195],"that":[196],"our":[197],"points":[207],"improve":[209],"V-PCC.":[217]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2025-12-19T00:32:22.182498","created_date":"2025-10-10T00:00:00"}
