{"id":"https://openalex.org/W4392939501","doi":"https://doi.org/10.1109/tcsvt.2024.3379220","title":"Learning Discriminative Features via Multi-Hierarchical Mutual Information for Unsupervised Point Cloud Registration","display_name":"Learning Discriminative Features via Multi-Hierarchical Mutual Information for Unsupervised Point Cloud Registration","publication_year":2024,"publication_date":"2024-03-19","ids":{"openalex":"https://openalex.org/W4392939501","doi":"https://doi.org/10.1109/tcsvt.2024.3379220"},"language":"en","primary_location":{"id":"doi:10.1109/tcsvt.2024.3379220","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2024.3379220","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/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":true,"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’an, China","Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Computer Science and Technology, Xidian University, Xi’an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Computer Science and Technology, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","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’an, China","Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Computer Science and Technology, Xidian University, Xi’an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Computer Science and Technology, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047791800","display_name":"Mingyu Yue","orcid":"https://orcid.org/0000-0002-0304-328X"},"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":"Mingyu Yue","raw_affiliation_strings":["School of Artificial Intelligence, Xidian University, Xi’an, China"],"affiliations":[{"raw_affiliation_string":"School of Artificial Intelligence, Xidian University, Xi’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":["School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi’an, China","Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi’an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi’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’an, China","Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi’an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Electronic Engineering, Xidian University, Xi’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’an, China"],"affiliations":[{"raw_affiliation_string":"School of Artificial Intelligence, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]}]},{"author_position":"last","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’an, China","Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Computer Science and Technology, Xidian University, Xi’an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science and Technology, Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]},{"raw_affiliation_string":"Key Laboratory of Collaborative Intelligence Systems, Ministry of Education, School of Computer Science and Technology, Xidian University, Xi’an, China","institution_ids":["https://openalex.org/I149594827"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5090587885"],"corresponding_institution_ids":["https://openalex.org/I149594827"],"apc_list":null,"apc_paid":null,"fwci":9.5568,"has_fulltext":false,"cited_by_count":26,"citation_normalized_percentile":{"value":0.991628,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":89,"max":100},"biblio":{"volume":"34","issue":"9","first_page":"8343","last_page":"8354"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10719","display_name":"3D Shape Modeling and Analysis","score":0.9998000264167786,"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":0.9998000264167786,"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":0.9976000189781189,"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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9965000152587891,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/discriminative-model","display_name":"Discriminative model","score":0.8616721630096436},{"id":"https://openalex.org/keywords/rigid-transformation","display_name":"Rigid transformation","score":0.7612240314483643},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6725339889526367},{"id":"https://openalex.org/keywords/point-cloud","display_name":"Point cloud","score":0.6703310012817383},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.6685375571250916},{"id":"https://openalex.org/keywords/mutual-information","display_name":"Mutual information","score":0.6514228582382202},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.5928873419761658},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.5552444458007812},{"id":"https://openalex.org/keywords/transformation","display_name":"Transformation (genetics)","score":0.5257638096809387},{"id":"https://openalex.org/keywords/redundancy","display_name":"Redundancy (engineering)","score":0.48600372672080994},{"id":"https://openalex.org/keywords/feature-extraction","display_name":"Feature extraction","score":0.46655958890914917},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.33555155992507935}],"concepts":[{"id":"https://openalex.org/C97931131","wikidata":"https://www.wikidata.org/wiki/Q5282087","display_name":"Discriminative model","level":2,"score":0.8616721630096436},{"id":"https://openalex.org/C126795593","wikidata":"https://www.wikidata.org/wiki/Q7333813","display_name":"Rigid transformation","level":2,"score":0.7612240314483643},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6725339889526367},{"id":"https://openalex.org/C131979681","wikidata":"https://www.wikidata.org/wiki/Q1899648","display_name":"Point cloud","level":2,"score":0.6703310012817383},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6685375571250916},{"id":"https://openalex.org/C152139883","wikidata":"https://www.wikidata.org/wiki/Q252973","display_name":"Mutual information","level":2,"score":0.6514228582382202},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.5928873419761658},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.5552444458007812},{"id":"https://openalex.org/C204241405","wikidata":"https://www.wikidata.org/wiki/Q461499","display_name":"Transformation (genetics)","level":3,"score":0.5257638096809387},{"id":"https://openalex.org/C152124472","wikidata":"https://www.wikidata.org/wiki/Q1204361","display_name":"Redundancy (engineering)","level":2,"score":0.48600372672080994},{"id":"https://openalex.org/C52622490","wikidata":"https://www.wikidata.org/wiki/Q1026626","display_name":"Feature extraction","level":2,"score":0.46655958890914917},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.33555155992507935},{"id":"https://openalex.org/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C55493867","wikidata":"https://www.wikidata.org/wiki/Q7094","display_name":"Biochemistry","level":1,"score":0.0},{"id":"https://openalex.org/C104317684","wikidata":"https://www.wikidata.org/wiki/Q7187","display_name":"Gene","level":2,"score":0.0},{"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.2024.3379220","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcsvt.2024.3379220","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":[{"id":"https://metadata.un.org/sdg/10","display_name":"Reduced inequalities","score":0.800000011920929}],"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/G731801172","display_name":null,"funder_award_id":"62276200","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/W1522301498","https://openalex.org/W1920022804","https://openalex.org/W1998511116","https://openalex.org/W2004312117","https://openalex.org/W2033961931","https://openalex.org/W2035464869","https://openalex.org/W2069899054","https://openalex.org/W2083624955","https://openalex.org/W2107528150","https://openalex.org/W2119851068","https://openalex.org/W2150066425","https://openalex.org/W2202493502","https://openalex.org/W2218842719","https://openalex.org/W2344109021","https://openalex.org/W2545896075","https://openalex.org/W2547911309","https://openalex.org/W2605111497","https://openalex.org/W2796426482","https://openalex.org/W2887997457","https://openalex.org/W2895180691","https://openalex.org/W2896435448","https://openalex.org/W2901022986","https://openalex.org/W2961443823","https://openalex.org/W2962822302","https://openalex.org/W2963264709","https://openalex.org/W2979750740","https://openalex.org/W2986382673","https://openalex.org/W2991284067","https://openalex.org/W3004808484","https://openalex.org/W3034295752","https://openalex.org/W3044144453","https://openalex.org/W3092856933","https://openalex.org/W3096538374","https://openalex.org/W3104311221","https://openalex.org/W3108059345","https://openalex.org/W3111598592","https://openalex.org/W3113378476","https://openalex.org/W3138284076","https://openalex.org/W3159746229","https://openalex.org/W3163789542","https://openalex.org/W3172602550","https://openalex.org/W3184159242","https://openalex.org/W4205125245","https://openalex.org/W4205842536","https://openalex.org/W4213187341","https://openalex.org/W4248598408","https://openalex.org/W4249564264","https://openalex.org/W4249866455","https://openalex.org/W4285154886","https://openalex.org/W4288258040","https://openalex.org/W4290715566","https://openalex.org/W4294811350","https://openalex.org/W4312325147","https://openalex.org/W4312685343","https://openalex.org/W4316660744","https://openalex.org/W4385245566","https://openalex.org/W6628164470","https://openalex.org/W6631190155","https://openalex.org/W6729763601","https://openalex.org/W6763422710","https://openalex.org/W6767284090"],"related_works":["https://openalex.org/W4206409166","https://openalex.org/W2027919853","https://openalex.org/W4245917595","https://openalex.org/W1998296102","https://openalex.org/W2142750822","https://openalex.org/W2807666361","https://openalex.org/W2031958926","https://openalex.org/W3133797311","https://openalex.org/W2123655559","https://openalex.org/W3200139265"],"abstract_inverted_index":{"Extracting":[0],"discriminative":[1,18,113],"representations":[2,14,23,117,152],"is":[3,159],"the":[4,26,166],"key":[5],"step":[6],"for":[7,72,122,153],"correspondence-free":[8,53,73,184],"point":[9,48,54,74],"cloud":[10,55,75],"registration.":[11],"The":[12,156,169],"extracted":[13],"require":[15],"to":[16,19,24,32,46,67,101,118,134],"be":[17],"transformation,":[20],"which":[21,110,138],"demands":[22],"reduce":[25],"influence":[27],"of":[28],"redundant":[29],"information":[30,105],"irrelevant":[31],"transformation.":[33,155],"However,":[34],"recently":[35],"proposed":[36,157],"methods":[37],"ignore":[38],"this":[39,63],"crucial":[40],"property,":[41],"resulting":[42],"in":[43,59,161],"limited":[44],"ability":[45],"represent":[47],"cloud.":[49],"In":[50,62,95,125],"addition,":[51],"researching":[52],"registration":[56,76],"has":[57],"stagnated":[58],"recent":[60],"years.":[61],"paper,":[64],"we":[65,99,130],"try":[66],"relieve":[68],"features":[69],"redundancy":[70,116],"issue":[71],"from":[77],"a":[78,145,150],"new":[79],"perspective.":[80],"Specifically,":[81],"our":[82,174],"method":[83,175],"comprises":[84],"two":[85],"stages:":[86],"feature":[87,96],"extraction":[88,97],"stage":[89],"and":[90,114,141,148,179],"rigid":[91,126,154],"body":[92,127],"transformation":[93,120,128,136],"stage.":[94,124],"stage,":[98,129],"aim":[100],"maximize":[102],"multi-hierarchical":[103],"mutual":[104],"between":[106],"different":[107],"hierarchical":[108],"features,":[109],"can":[111],"provide":[112],"less":[115],"regress":[119],"parameters":[121],"next":[123],"utilize":[131],"dual":[132],"quaternion":[133],"estimate":[135],"parameters,":[137],"combines":[139],"rotation":[140],"translation":[142],"simultaneously":[143],"within":[144],"unified":[146],"framework":[147],"obtains":[149],"compact":[151],"model":[158],"trained":[160],"an":[162],"unsupervised":[163],"manner":[164],"on":[165],"ModelNet40":[167],"dataset.":[168],"experimental":[170],"results":[171],"illustrate":[172],"that":[173],"achieves":[176],"higher":[177],"accuracy":[178],"robustness":[180],"compared":[181],"with":[182],"existing":[183],"methods.":[185]},"counts_by_year":[{"year":2026,"cited_by_count":4},{"year":2025,"cited_by_count":11},{"year":2024,"cited_by_count":10},{"year":2023,"cited_by_count":1}],"updated_date":"2026-03-21T08:13:44.787528","created_date":"2025-10-10T00:00:00"}