{"id":"https://openalex.org/W4393032791","doi":"https://doi.org/10.1109/tetci.2024.3375614","title":"Point Cloud Completion via Relative Point Position Encoding and Regional Attention","display_name":"Point Cloud Completion via Relative Point Position Encoding and Regional Attention","publication_year":2024,"publication_date":"2024-03-21","ids":{"openalex":"https://openalex.org/W4393032791","doi":"https://doi.org/10.1109/tetci.2024.3375614"},"language":"en","primary_location":{"id":"doi:10.1109/tetci.2024.3375614","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tetci.2024.3375614","pdf_url":null,"source":{"id":"https://openalex.org/S4210210251","display_name":"IEEE Transactions on Emerging Topics in Computational Intelligence","issn_l":"2471-285X","issn":["2471-285X"],"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 Emerging Topics in Computational Intelligence","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/A5006074303","display_name":"Jiazhong Chen","orcid":"https://orcid.org/0000-0003-2159-9393"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Jiazhong Chen","raw_affiliation_strings":["School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China"],"raw_orcid":"https://orcid.org/0000-0003-2159-9393","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103042281","display_name":"F.X. Liu","orcid":"https://orcid.org/0009-0005-7378-1148"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Furui Liu","raw_affiliation_strings":["School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China"],"raw_orcid":"https://orcid.org/0009-0005-7378-1148","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5094209253","display_name":"Dakai Ren","orcid":"https://orcid.org/0000-0003-0442-6861"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Dakai Ren","raw_affiliation_strings":["Usharingtech, Xiong'an, China"],"raw_orcid":"https://orcid.org/0000-0003-0442-6861","affiliations":[{"raw_affiliation_string":"Usharingtech, Xiong'an, China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081835171","display_name":"Lu Guo","orcid":"https://orcid.org/0000-0002-7656-5900"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lu Guo","raw_affiliation_strings":["School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China"],"raw_orcid":"https://orcid.org/0000-0002-7656-5900","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China","institution_ids":["https://openalex.org/I47720641"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5082206789","display_name":"ZhiHui Liu","orcid":"https://orcid.org/0009-0001-3664-3185"},"institutions":[{"id":"https://openalex.org/I47720641","display_name":"Huazhong University of Science and Technology","ror":"https://ror.org/00p991c53","country_code":"CN","type":"education","lineage":["https://openalex.org/I47720641"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ziyi Liu","raw_affiliation_strings":["School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China"],"raw_orcid":"https://orcid.org/0009-0001-3664-3185","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Huazhong University of Science and Technology, Wuhan, China","institution_ids":["https://openalex.org/I47720641"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5006074303"],"corresponding_institution_ids":["https://openalex.org/I47720641"],"apc_list":null,"apc_paid":null,"fwci":2.1497,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.84857567,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":98},"biblio":{"volume":"8","issue":"6","first_page":"3807","last_page":"3820"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9976000189781189,"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"}},"topics":[{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9976000189781189,"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/T11211","display_name":"3D Surveying and Cultural Heritage","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1907","display_name":"Geology"},"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/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9940999746322632,"subfield":{"id":"https://openalex.org/subfields/2305","display_name":"Environmental Engineering"},"field":{"id":"https://openalex.org/fields/23","display_name":"Environmental Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/encoding","display_name":"Encoding (memory)","score":0.7101483941078186},{"id":"https://openalex.org/keywords/point","display_name":"Point (geometry)","score":0.6458932757377625},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.6350745558738708},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.6099516749382019},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.47174179553985596},{"id":"https://openalex.org/keywords/point-mutation","display_name":"Point mutation","score":0.4703766703605652},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.29158371686935425},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.2345038652420044},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.19339391589164734},{"id":"https://openalex.org/keywords/biology","display_name":"Biology","score":0.14024880528450012},{"id":"https://openalex.org/keywords/business","display_name":"Business","score":0.11573228240013123},{"id":"https://openalex.org/keywords/genetics","display_name":"Genetics","score":0.09129989147186279},{"id":"https://openalex.org/keywords/mutation","display_name":"Mutation","score":0.0883437991142273},{"id":"https://openalex.org/keywords/gene","display_name":"Gene","score":0.08310815691947937}],"concepts":[{"id":"https://openalex.org/C125411270","wikidata":"https://www.wikidata.org/wiki/Q18653","display_name":"Encoding (memory)","level":2,"score":0.7101483941078186},{"id":"https://openalex.org/C28719098","wikidata":"https://www.wikidata.org/wiki/Q44946","display_name":"Point (geometry)","level":2,"score":0.6458932757377625},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.6350745558738708},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.6099516749382019},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.47174179553985596},{"id":"https://openalex.org/C176944494","wikidata":"https://www.wikidata.org/wiki/Q1415380","display_name":"Point mutation","level":4,"score":0.4703766703605652},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.29158371686935425},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.2345038652420044},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.19339391589164734},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.14024880528450012},{"id":"https://openalex.org/C144133560","wikidata":"https://www.wikidata.org/wiki/Q4830453","display_name":"Business","level":0,"score":0.11573228240013123},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.09129989147186279},{"id":"https://openalex.org/C501734568","wikidata":"https://www.wikidata.org/wiki/Q42918","display_name":"Mutation","level":3,"score":0.0883437991142273},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.08310815691947937},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tetci.2024.3375614","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tetci.2024.3375614","pdf_url":null,"source":{"id":"https://openalex.org/S4210210251","display_name":"IEEE Transactions on Emerging Topics in Computational Intelligence","issn_l":"2471-285X","issn":["2471-285X"],"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 Emerging Topics in Computational Intelligence","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8299999833106995,"id":"https://metadata.un.org/sdg/13","display_name":"Climate action"}],"awards":[{"id":"https://openalex.org/G1385929635","display_name":null,"funder_award_id":"62302186","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1529246711","display_name":null,"funder_award_id":"62372203","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G380432997","display_name":null,"funder_award_id":"2022M711251","funder_id":"https://openalex.org/F4320321543","funder_display_name":"China Postdoctoral Science Foundation"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321543","display_name":"China Postdoctoral Science Foundation","ror":"https://ror.org/0426zh255"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":53,"referenced_works":["https://openalex.org/W1920022804","https://openalex.org/W2115579991","https://openalex.org/W2194775991","https://openalex.org/W2337420161","https://openalex.org/W2559882727","https://openalex.org/W2560722161","https://openalex.org/W2604493845","https://openalex.org/W2796426482","https://openalex.org/W2798314605","https://openalex.org/W2798777114","https://openalex.org/W2886499109","https://openalex.org/W2890382763","https://openalex.org/W2905288042","https://openalex.org/W2912607492","https://openalex.org/W2940600945","https://openalex.org/W2944579304","https://openalex.org/W2953668091","https://openalex.org/W2962778872","https://openalex.org/W2963197375","https://openalex.org/W2963495494","https://openalex.org/W2963622297","https://openalex.org/W2963648573","https://openalex.org/W2963680153","https://openalex.org/W2963735494","https://openalex.org/W2964228567","https://openalex.org/W2981604966","https://openalex.org/W2986701260","https://openalex.org/W2992464978","https://openalex.org/W2997088169","https://openalex.org/W3009205130","https://openalex.org/W3034493208","https://openalex.org/W3034584726","https://openalex.org/W3035014292","https://openalex.org/W3035507572","https://openalex.org/W3108012830","https://openalex.org/W3109518641","https://openalex.org/W3116155584","https://openalex.org/W3170469318","https://openalex.org/W3191573718","https://openalex.org/W3192240783","https://openalex.org/W3203898101","https://openalex.org/W3206075451","https://openalex.org/W4221158749","https://openalex.org/W4312848711","https://openalex.org/W4313183789","https://openalex.org/W4386072236","https://openalex.org/W6631190155","https://openalex.org/W6725627366","https://openalex.org/W6739778489","https://openalex.org/W6748208425","https://openalex.org/W6763422710","https://openalex.org/W6784780333","https://openalex.org/W6810012916"],"related_works":["https://openalex.org/W3016928466","https://openalex.org/W4389574804","https://openalex.org/W2936725271","https://openalex.org/W3150655618","https://openalex.org/W3108295644","https://openalex.org/W1578717197","https://openalex.org/W2626737336","https://openalex.org/W2005998065","https://openalex.org/W2388648383","https://openalex.org/W2049371295"],"abstract_inverted_index":{"The":[0],"global":[1,35,100],"feature":[2,36],"encoding":[3],"and":[4,61,72,108,121,133,141],"surface":[5],"detail":[6],"refinement":[7],"are":[8,114],"two":[9],"critical":[10],"components":[11],"for":[12,124],"point-based":[13],"point":[14,44,92],"cloud":[15],"completion":[16,156],"methods.":[17,157],"However,":[18],"existing":[19,154],"methods":[20],"typically":[21],"use":[22],"max":[23],"pooling":[24],"to":[25,116],"hard":[26],"integrate":[27],"the":[28,34,41,49,54,64,88,99,118,126,146],"neighbouring":[29],"features,":[30],"resulting":[31],"in":[32,98],"that":[33,145],"can":[37],"not":[38,58],"well":[39,59,96],"encode":[40],"majority":[42,89],"of":[43,52,67,90,129],"position":[45,55,93,127],"information.":[46],"Moreover,":[47],"as":[48],"important":[50],"factor":[51],"refinement,":[53],"displacement":[56],"is":[57,95],"represented":[60],"suffers":[62],"from":[63],"information":[65,94],"loss":[66],"structure":[68],"details":[69],"on":[70,136],"local":[71,106,120],"non-local":[73,112,122],"regions.":[74],"Thus":[75],"we":[76],"propose":[77],"a":[78,103,109],"novel":[79],"regional":[80],"attention-based":[81],"Siamese":[82],"auto-encoder":[83],"network":[84],"architecture,":[85],"by":[86],"which":[87],"relative":[91],"encoded":[97],"feature.":[101],"Then":[102],"low":[104],"order":[105,111],"attention":[107,113],"high":[110],"presented":[115],"search":[117],"contributive":[119],"features":[123],"regressing":[125],"displacements":[128],"shape":[130],"surface.":[131],"Quantitative":[132],"qualitative":[134],"experiments":[135],"PCN,":[137],"Completion3D,":[138],"MVP,":[139],"ShapeNet-55/34,":[140],"KITTI":[142],"datasets":[143],"show":[144],"proposed":[147],"method":[148],"achieves":[149],"competitive":[150],"results":[151],"compared":[152],"with":[153],"state-of-the-art":[155]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":5}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}