{"id":"https://openalex.org/W4367320740","doi":"https://doi.org/10.1109/tip.2023.3270032","title":"Perspectively Equivariant Keypoint Learning for Omnidirectional Images","display_name":"Perspectively Equivariant Keypoint Learning for Omnidirectional Images","publication_year":2023,"publication_date":"2023-01-01","ids":{"openalex":"https://openalex.org/W4367320740","doi":"https://doi.org/10.1109/tip.2023.3270032","pmid":"https://pubmed.ncbi.nlm.nih.gov/37115832"},"language":"en","primary_location":{"id":"doi:10.1109/tip.2023.3270032","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2023.3270032","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"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 Image Processing","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","pubmed"],"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/A5101898324","display_name":"Yunjian Zhang","orcid":"https://orcid.org/0009-0006-0927-6363"},"institutions":[{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yunjian Zhang","raw_affiliation_strings":["Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210156404","https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100720129","display_name":"Yanwei Liu","orcid":"https://orcid.org/0000-0002-0626-1901"},"institutions":[{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yanwei Liu","raw_affiliation_strings":["Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210156404","https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101685043","display_name":"Jinxia Liu","orcid":"https://orcid.org/0000-0002-6552-9795"},"institutions":[{"id":"https://openalex.org/I1315279114","display_name":"Zhejiang Wanli University","ror":"https://ror.org/00rjdhd62","country_code":"CN","type":"education","lineage":["https://openalex.org/I1315279114"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jinxia Liu","raw_affiliation_strings":["College of Information and Intelligence Engineering, Zhejiang Wanli University, Ningbo, China"],"affiliations":[{"raw_affiliation_string":"College of Information and Intelligence Engineering, Zhejiang Wanli University, Ningbo, China","institution_ids":["https://openalex.org/I1315279114"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008803219","display_name":"Antonios Argyriou","orcid":"https://orcid.org/0000-0002-2510-3124"},"institutions":[{"id":"https://openalex.org/I145722265","display_name":"University of Thessaly","ror":"https://ror.org/04v4g9h31","country_code":"GR","type":"education","lineage":["https://openalex.org/I145722265"]}],"countries":["GR"],"is_corresponding":false,"raw_author_name":"Antonios Argyriou","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Thessaly, Volos, Greece"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Thessaly, Volos, Greece","institution_ids":["https://openalex.org/I145722265"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100328729","display_name":"Liming Wang","orcid":"https://orcid.org/0000-0002-5732-5258"},"institutions":[{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Liming Wang","raw_affiliation_strings":["Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210156404","https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037509498","display_name":"Zhen Xu","orcid":"https://orcid.org/0000-0002-5674-9067"},"institutions":[{"id":"https://openalex.org/I4210156404","display_name":"Institute of Information Engineering","ror":"https://ror.org/04r53se39","country_code":"CN","type":"facility","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210156404"]},{"id":"https://openalex.org/I19820366","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35","country_code":"CN","type":"funder","lineage":["https://openalex.org/I19820366"]},{"id":"https://openalex.org/I4210165038","display_name":"University of Chinese Academy of Sciences","ror":"https://ror.org/05qbk4x57","country_code":"CN","type":"education","lineage":["https://openalex.org/I19820366","https://openalex.org/I4210165038"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zhen Xu","raw_affiliation_strings":["Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Institute of Information Engineering, Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210156404","https://openalex.org/I19820366"]},{"raw_affiliation_string":"School of Cyber Security, University of Chinese Academy of Sciences, Beijing, China","institution_ids":["https://openalex.org/I4210165038"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5024401174","display_name":"Xiangyang Ji","orcid":"https://orcid.org/0000-0002-7333-9975"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiangyang Ji","raw_affiliation_strings":["Department of Automation, Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Department of Automation, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5101898324"],"corresponding_institution_ids":["https://openalex.org/I19820366","https://openalex.org/I4210156404","https://openalex.org/I4210165038"],"apc_list":null,"apc_paid":null,"fwci":0.2427,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.49629523,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":99},"biblio":{"volume":"32","issue":null,"first_page":"2552","last_page":"2567"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9998999834060669,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9998999834060669,"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/T10191","display_name":"Robotics and Sensor-Based Localization","score":0.9995999932289124,"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"}},{"id":"https://openalex.org/T11714","display_name":"Multimodal Machine Learning Applications","score":0.9980999827384949,"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/artificial-intelligence","display_name":"Artificial intelligence","score":0.6883116960525513},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.68736732006073},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.6166454553604126},{"id":"https://openalex.org/keywords/perspective","display_name":"Perspective (graphical)","score":0.5831685662269592},{"id":"https://openalex.org/keywords/equivariant-map","display_name":"Equivariant map","score":0.5668106079101562},{"id":"https://openalex.org/keywords/omnidirectional-antenna","display_name":"Omnidirectional antenna","score":0.5473586916923523},{"id":"https://openalex.org/keywords/object","display_name":"Object (grammar)","score":0.4441826045513153},{"id":"https://openalex.org/keywords/object-detection","display_name":"Object detection","score":0.42355698347091675},{"id":"https://openalex.org/keywords/detector","display_name":"Detector","score":0.42333418130874634},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.42326992750167847},{"id":"https://openalex.org/keywords/position","display_name":"Position (finance)","score":0.4191818833351135},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.33469435572624207},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.2374332845211029}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.6883116960525513},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.68736732006073},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.6166454553604126},{"id":"https://openalex.org/C12713177","wikidata":"https://www.wikidata.org/wiki/Q1900281","display_name":"Perspective (graphical)","level":2,"score":0.5831685662269592},{"id":"https://openalex.org/C171036898","wikidata":"https://www.wikidata.org/wiki/Q256355","display_name":"Equivariant map","level":2,"score":0.5668106079101562},{"id":"https://openalex.org/C24027999","wikidata":"https://www.wikidata.org/wiki/Q2176348","display_name":"Omnidirectional antenna","level":3,"score":0.5473586916923523},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.4441826045513153},{"id":"https://openalex.org/C2776151529","wikidata":"https://www.wikidata.org/wiki/Q3045304","display_name":"Object detection","level":3,"score":0.42355698347091675},{"id":"https://openalex.org/C94915269","wikidata":"https://www.wikidata.org/wiki/Q1834857","display_name":"Detector","level":2,"score":0.42333418130874634},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.42326992750167847},{"id":"https://openalex.org/C198082294","wikidata":"https://www.wikidata.org/wiki/Q3399648","display_name":"Position (finance)","level":2,"score":0.4191818833351135},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.33469435572624207},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.2374332845211029},{"id":"https://openalex.org/C10138342","wikidata":"https://www.wikidata.org/wiki/Q43015","display_name":"Finance","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C202444582","wikidata":"https://www.wikidata.org/wiki/Q837863","display_name":"Pure mathematics","level":1,"score":0.0},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tip.2023.3270032","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tip.2023.3270032","pdf_url":null,"source":{"id":"https://openalex.org/S4210173141","display_name":"IEEE Transactions on Image Processing","issn_l":"1057-7149","issn":["1057-7149","1941-0042"],"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 Image Processing","raw_type":"journal-article"},{"id":"pmid:37115832","is_oa":false,"landing_page_url":"https://pubmed.ncbi.nlm.nih.gov/37115832","pdf_url":null,"source":{"id":"https://openalex.org/S4306525036","display_name":"PubMed","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1299303238","host_organization_name":"National Institutes of Health","host_organization_lineage":["https://openalex.org/I1299303238"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE transactions on image processing : a publication of the IEEE Signal Processing Society","raw_type":null}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1759107781","display_name":null,"funder_award_id":"61771469","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3218517982","display_name":null,"funder_award_id":"2022J189","funder_id":"https://openalex.org/F4320332587","funder_display_name":"Natural Science Foundation of Ningbo"},{"id":"https://openalex.org/G5254105779","display_name":null,"funder_award_id":"HZ2021015","funder_id":"https://openalex.org/F4320321133","funder_display_name":"Chinese Academy of Sciences"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320321133","display_name":"Chinese Academy of Sciences","ror":"https://ror.org/034t30j35"},{"id":"https://openalex.org/F4320332587","display_name":"Natural Science Foundation of Ningbo","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":53,"referenced_works":["https://openalex.org/W566730006","https://openalex.org/W1532362218","https://openalex.org/W1677409904","https://openalex.org/W2047895082","https://openalex.org/W2071464953","https://openalex.org/W2104853049","https://openalex.org/W2104874563","https://openalex.org/W2117228865","https://openalex.org/W2117947052","https://openalex.org/W2128626135","https://openalex.org/W2151103935","https://openalex.org/W2157653924","https://openalex.org/W2160398734","https://openalex.org/W2162302809","https://openalex.org/W2177274842","https://openalex.org/W2320444803","https://openalex.org/W2345643369","https://openalex.org/W2530328993","https://openalex.org/W2556970001","https://openalex.org/W2601564443","https://openalex.org/W2749224737","https://openalex.org/W2751456471","https://openalex.org/W2796422723","https://openalex.org/W2804394440","https://openalex.org/W2807732111","https://openalex.org/W2895250390","https://openalex.org/W2895696451","https://openalex.org/W2902957614","https://openalex.org/W2913429812","https://openalex.org/W2922800869","https://openalex.org/W2947326555","https://openalex.org/W2963014315","https://openalex.org/W2968464574","https://openalex.org/W2969261403","https://openalex.org/W2991549278","https://openalex.org/W2999254410","https://openalex.org/W3009931536","https://openalex.org/W3013243617","https://openalex.org/W3034411221","https://openalex.org/W3034515714","https://openalex.org/W3035338950","https://openalex.org/W3043075211","https://openalex.org/W3081612416","https://openalex.org/W4297779075","https://openalex.org/W4312722029","https://openalex.org/W6631190155","https://openalex.org/W6694954494","https://openalex.org/W6738345448","https://openalex.org/W6742151855","https://openalex.org/W6752208963","https://openalex.org/W6769516661","https://openalex.org/W6774365965","https://openalex.org/W6803945128"],"related_works":["https://openalex.org/W3148895720","https://openalex.org/W2393913406","https://openalex.org/W2356579025","https://openalex.org/W2736697936","https://openalex.org/W3211835374","https://openalex.org/W30258475","https://openalex.org/W2548611373","https://openalex.org/W1601809778","https://openalex.org/W4292830139","https://openalex.org/W4319309705"],"abstract_inverted_index":{"Robust":[0],"keypoint":[1,27,53],"detection":[2],"on":[3,108,150,167],"omnidirectional":[4,71,168],"images":[5],"against":[6],"large":[7],"perspective":[8,43,73],"variations,":[9],"is":[10,39],"a":[11,24,42,46,52,64,80,99,130],"key":[12],"problem":[13],"in":[14,98,162],"many":[15],"computer":[16],"vision":[17],"tasks.":[18],"In":[19,75],"this":[20,34],"paper,":[21],"we":[22,78,128],"propose":[23,79],"perspectively":[25,164],"equivariant":[26,165],"learning":[28],"framework":[29,38,143],"named":[30],"OmniKL":[31,161],"for":[32,70,86],"addressing":[33],"problem.":[35],"Specifically,":[36],"the":[37,57,60,92,95,104,109,116,119,135,142,158],"composed":[40],"of":[41,59,94,118,160],"module":[44],"and":[45,63,72,102,137,152],"spherical":[47],"module,":[48],"each":[49],"one":[50],"including":[51],"detector":[54],"specific":[55],"to":[56,140],"type":[58],"input":[61],"image":[62,155],"shared":[65],"descriptor":[66],"providing":[67],"uniform":[68],"description":[69],"images.":[74,169],"these":[76],"detectors,":[77],"differentiable":[81,100],"candidate":[82,96],"position":[83],"sorting":[84],"operation":[85],"localizing":[87],"keypoints,":[88],"which":[89],"directly":[90],"sorts":[91],"scores":[93],"positions":[97],"manner":[101],"returns":[103],"globally":[105],"top-K":[106],"keypoints":[107,166],"image.":[110],"This":[111],"approach":[112],"does":[113],"not":[114],"break":[115],"differentiability":[117],"two":[120],"modules,":[121],"thus":[122],"they":[123],"are":[124,173],"end-to-end":[125],"trainable.":[126],"Moreover,":[127],"design":[129],"novel":[131],"training":[132],"strategy":[133],"combining":[134],"self-supervised":[136],"co-supervised":[138],"methods":[139],"train":[141],"without":[144],"any":[145],"labeled":[146],"data.":[147],"Extensive":[148],"experiments":[149],"synthetic":[151],"real-world":[153],"360\u00b0":[154],"datasets":[156],"demonstrate":[157],"effectiveness":[159],"detecting":[163],"Our":[170],"source":[171],"code":[172],"available":[174],"online":[175],"at":[176],"https://github.com/vandeppce/sphkpt.":[177]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1}],"updated_date":"2026-03-22T08:09:32.410652","created_date":"2025-10-10T00:00:00"}
