{"id":"https://openalex.org/W2336962863","doi":"https://doi.org/10.1080/01691864.2016.1172506","title":"Collective activity localization by spatiality preservation search","display_name":"Collective activity localization by spatiality preservation search","publication_year":2016,"publication_date":"2016-04-15","ids":{"openalex":"https://openalex.org/W2336962863","doi":"https://doi.org/10.1080/01691864.2016.1172506","mag":"2336962863"},"language":"en","primary_location":{"id":"doi:10.1080/01691864.2016.1172506","is_oa":false,"landing_page_url":"https://doi.org/10.1080/01691864.2016.1172506","pdf_url":null,"source":{"id":"https://openalex.org/S192584203","display_name":"Advanced Robotics","issn_l":"0169-1864","issn":["0169-1864","1568-5535"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advanced Robotics","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/A5112267338","display_name":"Shigeyuki Odashima","orcid":null},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Shigeyuki Odashima","raw_affiliation_strings":["The University of Tokyo, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5032839697","display_name":"Masamichi Shimosaka","orcid":"https://orcid.org/0000-0003-0558-2006"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Masamichi Shimosaka","raw_affiliation_strings":["Tokyo Institute of Technology, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"Tokyo Institute of Technology, Tokyo, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5020693766","display_name":"Takuhiro Kaneko","orcid":"https://orcid.org/0009-0000-8016-5144"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takuhiro Kaneko","raw_affiliation_strings":["The University of Tokyo, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043323310","display_name":"Rui Fukui","orcid":"https://orcid.org/0000-0002-3940-8279"},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Rui Fukui","raw_affiliation_strings":["The University of Tokyo, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100994318","display_name":"Tomomasa Sato","orcid":null},"institutions":[{"id":"https://openalex.org/I74801974","display_name":"The University of Tokyo","ror":"https://ror.org/057zh3y96","country_code":"JP","type":"education","lineage":["https://openalex.org/I74801974"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomomasa Sato","raw_affiliation_strings":["The University of Tokyo, Tokyo, Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokyo, Tokyo, Japan","institution_ids":["https://openalex.org/I74801974"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5112267338"],"corresponding_institution_ids":["https://openalex.org/I74801974"],"apc_list":null,"apc_paid":null,"fwci":0.1689,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.54440034,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"biblio":{"volume":"30","issue":"11-12","first_page":"784","last_page":"794"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9998000264167786,"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/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9998000264167786,"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/T10812","display_name":"Human Pose and Action Recognition","score":0.9994000196456909,"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/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.9983000159263611,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5038701891899109},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.478263258934021},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.35205233097076416}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5038701891899109},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.478263258934021},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.35205233097076416}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1080/01691864.2016.1172506","is_oa":false,"landing_page_url":"https://doi.org/10.1080/01691864.2016.1172506","pdf_url":null,"source":{"id":"https://openalex.org/S192584203","display_name":"Advanced Robotics","issn_l":"0169-1864","issn":["0169-1864","1568-5535"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320547","host_organization_name":"Taylor & Francis","host_organization_lineage":["https://openalex.org/P4310320547"],"host_organization_lineage_names":["Taylor & Francis"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advanced Robotics","raw_type":"journal-article"},{"id":"pmh:oai:t2r2.star.titech.ac.jp:50504119","is_oa":false,"landing_page_url":"http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100812449","pdf_url":null,"source":{"id":"https://openalex.org/S4377196385","display_name":"Tokyo Tech Research Repository (Tokyo Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I114531698","host_organization_name":"Tokyo Institute of Technology","host_organization_lineage":["https://openalex.org/I114531698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"},{"id":"pmh:oai:t2r2.star.titech.ac.jp:50547245","is_oa":false,"landing_page_url":"http://t2r2.star.titech.ac.jp/cgi-bin/publicationinfo.cgi?q_publication_content_number=CTT100835436","pdf_url":null,"source":{"id":"https://openalex.org/S4377196385","display_name":"Tokyo Tech Research Repository (Tokyo Institute of Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I114531698","host_organization_name":"Tokyo Institute of Technology","host_organization_lineage":["https://openalex.org/I114531698"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":40,"referenced_works":["https://openalex.org/W100367037","https://openalex.org/W289401892","https://openalex.org/W325712476","https://openalex.org/W1485012117","https://openalex.org/W1517303303","https://openalex.org/W1884674945","https://openalex.org/W1946832903","https://openalex.org/W2007499012","https://openalex.org/W2014788385","https://openalex.org/W2020163092","https://openalex.org/W2023014843","https://openalex.org/W2031489346","https://openalex.org/W2039475852","https://openalex.org/W2047499569","https://openalex.org/W2053619738","https://openalex.org/W2057067088","https://openalex.org/W2070006916","https://openalex.org/W2081314772","https://openalex.org/W2084837730","https://openalex.org/W2110953678","https://openalex.org/W2113201641","https://openalex.org/W2118585731","https://openalex.org/W2129052208","https://openalex.org/W2130843763","https://openalex.org/W2132315307","https://openalex.org/W2138332955","https://openalex.org/W2140251882","https://openalex.org/W2153767810","https://openalex.org/W2158169396","https://openalex.org/W2161969291","https://openalex.org/W2162451865","https://openalex.org/W2162915993","https://openalex.org/W2168356304","https://openalex.org/W2171080222","https://openalex.org/W2171544105","https://openalex.org/W2294197530","https://openalex.org/W2533503513","https://openalex.org/W3097096317","https://openalex.org/W4210890186","https://openalex.org/W4386207016"],"related_works":["https://openalex.org/W2058170566","https://openalex.org/W2755342338","https://openalex.org/W2772917594","https://openalex.org/W2775347418","https://openalex.org/W2166024367","https://openalex.org/W3116076068","https://openalex.org/W2229312674","https://openalex.org/W2951359407","https://openalex.org/W2079911747","https://openalex.org/W1969923398"],"abstract_inverted_index":{"In":[0,18,92],"this":[1,93],"paper,":[2],"we":[3,95],"propose":[4],"a":[5,38,97],"collective":[6,24,28,51,76],"activity":[7,25,29,40,45,52,77],"localization":[8,30,53],"method":[9,31],"based":[10],"on":[11,117,148],"the":[12,27,62,80,90,102,118,122,128,132,139,159],"spatial":[13],"contextual":[14,137],"information":[15],"among":[16],"people.":[17],"contrast":[19],"to":[20,58,89],"previous":[21],"works":[22],"of":[23,34,50,61,64,158],"recognition,":[26],"recognizes":[32],"groups":[33,125,142],"people":[35],"participating":[36],"in":[37,111,131],"consistent":[39],"as":[41,43],"well":[42],"their":[44],"labels.":[46],"The":[47,67],"biggest":[48],"challenge":[49],"is":[54],"efficient":[55],"computation,":[56],"due":[57],"exponential":[59],"growth":[60],"number":[63],"possible":[65],"groups.":[66,91,133],"combinatorial":[68],"search":[69,99],"methods":[70],"cannot":[71],"be":[72],"naively":[73],"applied":[74],"for":[75],"localization,":[78],"because":[79],"participant\u2019s":[81,129],"position":[82,130],"dramatically":[83],"changes":[84],"by":[85],"adding":[86],"new":[87,154],"participants":[88,116],"work,":[94],"introduce":[96],"novel":[98],"algorithm":[100],"named":[101],"Spatiality":[103],"Preservation":[104],"Search":[105],"(SPS),":[106],"which":[107],"provides":[108],"exact":[109],"solutions":[110],"polynomial":[112],"time.":[113],"By":[114],"determining":[115],"group":[119],"boundaries":[120],"first,":[121],"SPS":[123,140],"enumerates":[124],"without":[126],"changing":[127],"Also,":[134],"using":[135,144],"Haar-like":[136],"descriptors,":[138],"extracts":[141],"efficiently":[143],"integral":[145],"images.":[146],"Experiments":[147],"an":[149],"existing":[150],"data-set":[151],"and":[152],"challenging":[153],"data-sets":[155],"show":[156],"efficiency":[157],"proposed":[160],"method.":[161]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2016,"cited_by_count":1}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}
