{"id":"https://openalex.org/W4405179527","doi":"https://doi.org/10.1109/tcsvt.2024.3512858","title":"Equivariance-Based Markov Decision Process for Unsupervised Point Cloud Registration","display_name":"Equivariance-Based Markov Decision Process for Unsupervised Point Cloud Registration","publication_year":2024,"publication_date":"2024-12-09","ids":{"openalex":"https://openalex.org/W4405179527","doi":"https://doi.org/10.1109/tcsvt.2024.3512858"},"language":"en","primary_location":{"id":"doi:10.1109/tcsvt.2024.3512858","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2024.3512858","pdf_url":null,"source":{"id":"https://openalex.org/S115173108","display_name":"IEEE Transactions on Circuits and Systems for Video Technology","issn_l":"1051-8215","issn":["1051-8215","1558-2205"],"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 Circuits and Systems for Video Technology","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/A5009576623","display_name":"Yue Wu","orcid":"https://orcid.org/0000-0002-3459-5079"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yue Wu","raw_affiliation_strings":["School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-3459-5079","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081017203","display_name":"Jiayi Lei","orcid":"https://orcid.org/0009-0003-8126-324X"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiayi Lei","raw_affiliation_strings":["School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0009-0003-8126-324X","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090587885","display_name":"Yongzhe Yuan","orcid":"https://orcid.org/0009-0002-9206-1283"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yongzhe Yuan","raw_affiliation_strings":["School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0009-0002-9206-1283","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5017834338","display_name":"Xiaolong Fan","orcid":"https://orcid.org/0000-0001-8484-2069"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaolong Fan","raw_affiliation_strings":["School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Electronic Engineering, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0001-8484-2069","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Electronic Engineering, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5091227928","display_name":"Maoguo Gong","orcid":"https://orcid.org/0000-0002-0415-8556"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Maoguo Gong","raw_affiliation_strings":["Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Electronic Engineering, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-0415-8556","affiliations":[{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Electronic Engineering, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065027008","display_name":"Wenping Ma","orcid":"https://orcid.org/0000-0001-8872-2195"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wenping Ma","raw_affiliation_strings":["School of Artificial Intelligence, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0001-8872-2195","affiliations":[{"raw_affiliation_string":"School of Artificial Intelligence, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103213763","display_name":"Qiguang Miao","orcid":"https://orcid.org/0000-0001-6766-8310"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qiguang Miao","raw_affiliation_strings":["School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0001-6766-8310","affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Computer Science and Technology, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100432821","display_name":"Mingyang Zhang","orcid":"https://orcid.org/0000-0002-9768-516X"},"institutions":[{"id":"https://openalex.org/I149594827","display_name":"Xidian University","ror":"https://ror.org/05s92vm98","country_code":"CN","type":"education","lineage":["https://openalex.org/I149594827"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mingyang Zhang","raw_affiliation_strings":["Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi&#x2019;an, China","Key Laboratory of Collaborative Intelligence Systems, School of Electronic Engineering, Ministry of Education, Xidian University, Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-9768-516X","affiliations":[{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, School of Electronic Engineering, Ministry of Education, Xidian University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":0.3295,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.55689393,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":96},"biblio":{"volume":"35","issue":"5","first_page":"4648","last_page":"4660"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9822999835014343,"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"}},"topics":[{"id":"https://openalex.org/T11164","display_name":"Remote Sensing and LiDAR Applications","score":0.9822999835014343,"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"}},{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.95660001039505,"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/T14339","display_name":"Image Processing and 3D Reconstruction","score":0.954200029373169,"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":0.6359745264053345},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.5645409226417542},{"id":"https://openalex.org/keywords/markov-process","display_name":"Markov process","score":0.5205262899398804},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.517917811870575},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.4870300889015198},{"id":"https://openalex.org/keywords/process","display_name":"Process (computing)","score":0.47940871119499207},{"id":"https://openalex.org/keywords/markov-chain","display_name":"Markov chain","score":0.410847932100296},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.24821391701698303},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.23383960127830505},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.1868979036808014}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6359745264053345},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.5645409226417542},{"id":"https://openalex.org/C159886148","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov process","level":2,"score":0.5205262899398804},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.517917811870575},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.4870300889015198},{"id":"https://openalex.org/C98045186","wikidata":"https://www.wikidata.org/wiki/Q205663","display_name":"Process (computing)","level":2,"score":0.47940871119499207},{"id":"https://openalex.org/C98763669","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov chain","level":2,"score":0.410847932100296},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.24821391701698303},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.23383960127830505},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.1868979036808014},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcsvt.2024.3512858","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2024.3512858","pdf_url":null,"source":{"id":"https://openalex.org/S115173108","display_name":"IEEE Transactions on Circuits and Systems for Video Technology","issn_l":"1051-8215","issn":["1051-8215","1558-2205"],"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 Circuits and Systems for Video Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6800000071525574,"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16"}],"awards":[{"id":"https://openalex.org/G1949608614","display_name":null,"funder_award_id":"62036006","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3576877324","display_name":null,"funder_award_id":"QTZX24074","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G731801172","display_name":null,"funder_award_id":"62276200","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8775269202","display_name":null,"funder_award_id":"62306221","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"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":61,"referenced_works":["https://openalex.org/W1567242735","https://openalex.org/W1582300767","https://openalex.org/W1920022804","https://openalex.org/W1989476314","https://openalex.org/W2004312117","https://openalex.org/W2034950486","https://openalex.org/W2058535340","https://openalex.org/W2083624955","https://openalex.org/W2084480077","https://openalex.org/W2085261163","https://openalex.org/W2097832352","https://openalex.org/W2106445473","https://openalex.org/W2119851068","https://openalex.org/W2161168419","https://openalex.org/W2412229623","https://openalex.org/W2519911873","https://openalex.org/W2576915720","https://openalex.org/W2803600673","https://openalex.org/W2889300857","https://openalex.org/W2900273708","https://openalex.org/W2955307761","https://openalex.org/W2962941647","https://openalex.org/W2964187290","https://openalex.org/W2979750740","https://openalex.org/W2986382673","https://openalex.org/W3007240855","https://openalex.org/W3013243617","https://openalex.org/W3034295752","https://openalex.org/W3049379553","https://openalex.org/W3096538374","https://openalex.org/W3108059345","https://openalex.org/W3133797311","https://openalex.org/W3164678585","https://openalex.org/W3168920280","https://openalex.org/W3172602550","https://openalex.org/W3177280664","https://openalex.org/W3179449781","https://openalex.org/W3203473225","https://openalex.org/W3211345561","https://openalex.org/W4205842536","https://openalex.org/W4210323894","https://openalex.org/W4220802988","https://openalex.org/W4221015610","https://openalex.org/W4226373316","https://openalex.org/W4229439434","https://openalex.org/W4229624061","https://openalex.org/W4237162356","https://openalex.org/W4296913583","https://openalex.org/W4316660744","https://openalex.org/W4376607844","https://openalex.org/W4379985979","https://openalex.org/W4382658005","https://openalex.org/W4386065549","https://openalex.org/W4390872573","https://openalex.org/W4396909837","https://openalex.org/W6631190155","https://openalex.org/W6637433312","https://openalex.org/W6747827861","https://openalex.org/W6763990646","https://openalex.org/W6767019538","https://openalex.org/W6791205910"],"related_works":["https://openalex.org/W4244478748","https://openalex.org/W3150465815","https://openalex.org/W4223488648","https://openalex.org/W2134969820","https://openalex.org/W2251605416","https://openalex.org/W2379651310","https://openalex.org/W2113019827","https://openalex.org/W1541249122","https://openalex.org/W2413828414","https://openalex.org/W2367222340"],"abstract_inverted_index":{"Unsupervised":[0],"point":[1,54],"cloud":[2,55],"registration":[3,44,56,100],"is":[4],"crucial":[5],"in":[6,110],"3D":[7],"computer":[8],"vision.":[9],"However,":[10],"most":[11],"unsupervised":[12,22,64,138],"methods":[13],"struggle":[14],"to":[15,24,103,118],"construct":[16,119],"effective":[17],"optimization":[18,126],"objectives":[19],"and":[20,46,93,108,128],"reliable":[21,63,137],"signals":[23,65],"enhance":[25],"the":[26,29,36,39,43,47,67,85,90,95,99,111,143],"performance":[27,145],"of":[28,38,89,146],"model.":[30],"To":[31],"address":[32],"these":[33],"issues,":[34],"with":[35],"observation":[37],"significant":[40],"alignment":[41],"between":[42],"process":[45],"Markov":[48],"Decision":[49],"Process":[50],"(MDP),":[51],"we":[52,114],"model":[53],"as":[57,123],"MDP,":[58],"which":[59,77],"can":[60],"provide":[61],"more":[62,136],"through":[66],"reward.":[68],"We":[69],"propose":[70],"a":[71,124],"colored":[72,79],"noise":[73,80],"based":[74],"cross-entropy":[75],"method,":[76],"introduces":[78],"into":[81],"sampling":[82],"process,":[83],"regulating":[84],"power":[86],"spectral":[87],"density":[88],"action":[91],"sequence":[92],"expanding":[94],"search":[96],"space,":[97,113],"improving":[98],"effect.":[101],"Particularly,":[102],"strengthen":[104],"constraints":[105],"on":[106,149],"MDP":[107],"training":[109],"transformation":[112,120],"utilize":[115],"equivariance":[116],"theory":[117],"equivariant":[121,130],"constraint":[122,131],"new":[125],"objective":[127],"derive":[129],"solutions":[132],"for":[133],"optimization,":[134],"providing":[135],"signals.":[139],"Extensive":[140],"experiments":[141],"demonstrate":[142],"superior":[144],"our":[147],"method":[148],"benchmark":[150],"datasets.":[151]},"counts_by_year":[{"year":2025,"cited_by_count":2}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}
