{"id":"https://openalex.org/W2963686433","doi":"https://doi.org/10.1109/access.2019.2929200","title":"A Crowd Behavior Identification Method Combining the Streakline With the High-Accurate Variational Optical Flow Model","display_name":"A Crowd Behavior Identification Method Combining the Streakline With the High-Accurate Variational Optical Flow Model","publication_year":2019,"publication_date":"2019-01-01","ids":{"openalex":"https://openalex.org/W2963686433","doi":"https://doi.org/10.1109/access.2019.2929200","mag":"2963686433"},"language":"en","primary_location":{"id":"doi:10.1109/access.2019.2929200","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2929200","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08770244.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08770244.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101433251","display_name":"Xiaofei Wang","orcid":"https://orcid.org/0000-0002-2584-837X"},"institutions":[{"id":"https://openalex.org/I4210147228","display_name":"Chengdu Normal University","ror":"https://ror.org/04enz2k98","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210147228"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xiaofei Wang","raw_affiliation_strings":["Department of Computer Science, Chengdu Normal University, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0002-2584-837X","affiliations":[{"raw_affiliation_string":"Department of Computer Science, Chengdu Normal University, Chengdu, China","institution_ids":["https://openalex.org/I4210147228"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086321095","display_name":"Zishu He","orcid":"https://orcid.org/0000-0003-4491-8414"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Zishu He","raw_affiliation_strings":["School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027072710","display_name":"Rui Sun","orcid":"https://orcid.org/0000-0001-5429-978X"},"institutions":[{"id":"https://openalex.org/I4210147228","display_name":"Chengdu Normal University","ror":"https://ror.org/04enz2k98","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210147228"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Rui Sun","raw_affiliation_strings":["Department of Computer Science, Chengdu Normal University, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Chengdu Normal University, Chengdu, China","institution_ids":["https://openalex.org/I4210147228"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5103223170","display_name":"Lei You","orcid":"https://orcid.org/0000-0002-4995-5436"},"institutions":[{"id":"https://openalex.org/I56934997","display_name":"Changsha University of Science and Technology","ror":"https://ror.org/03yph8055","country_code":"CN","type":"education","lineage":["https://openalex.org/I56934997"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lei You","raw_affiliation_strings":["Engineering Laboratory of Spatial Information Technology of Highway Geological Disaster Early Warning in Hunan Province, Changsha University of Science and Technology, Changsha, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Engineering Laboratory of Spatial Information Technology of Highway Geological Disaster Early Warning in Hunan Province, Changsha University of Science and Technology, Changsha, China","institution_ids":["https://openalex.org/I56934997"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101602260","display_name":"Jun Hu","orcid":"https://orcid.org/0000-0003-1861-8944"},"institutions":[{"id":"https://openalex.org/I4210147228","display_name":"Chengdu Normal University","ror":"https://ror.org/04enz2k98","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210147228"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jun Hu","raw_affiliation_strings":["Department of Computer Science, Chengdu Normal University, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Chengdu Normal University, Chengdu, China","institution_ids":["https://openalex.org/I4210147228"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103223681","display_name":"Jie Zhang","orcid":"https://orcid.org/0009-0002-8037-4899"},"institutions":[{"id":"https://openalex.org/I4210147228","display_name":"Chengdu Normal University","ror":"https://ror.org/04enz2k98","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210147228"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jie Zhang","raw_affiliation_strings":["Department of Computer Science, Chengdu Normal University, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Computer Science, Chengdu Normal University, Chengdu, China","institution_ids":["https://openalex.org/I4210147228"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5101433251"],"corresponding_institution_ids":["https://openalex.org/I4210147228"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.8711,"has_fulltext":true,"cited_by_count":8,"citation_normalized_percentile":{"value":0.80910491,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"7","issue":null,"first_page":"114572","last_page":"114581"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.9998999834060669,"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"}},"topics":[{"id":"https://openalex.org/T11512","display_name":"Anomaly Detection Techniques and Applications","score":0.9998999834060669,"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"}},{"id":"https://openalex.org/T10331","display_name":"Video Surveillance and Tracking Methods","score":0.9958999752998352,"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/T11500","display_name":"Evacuation and Crowd Dynamics","score":0.9923999905586243,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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/optical-flow","display_name":"Optical flow","score":0.6785774230957031},{"id":"https://openalex.org/keywords/identification","display_name":"Identification (biology)","score":0.6567642688751221},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6333008408546448},{"id":"https://openalex.org/keywords/flow","display_name":"Flow (mathematics)","score":0.5542032718658447},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.3750362992286682},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.17181545495986938},{"id":"https://openalex.org/keywords/geometry","display_name":"Geometry","score":0.0885840654373169},{"id":"https://openalex.org/keywords/image","display_name":"Image (mathematics)","score":0.07225039601325989}],"concepts":[{"id":"https://openalex.org/C155542232","wikidata":"https://www.wikidata.org/wiki/Q736111","display_name":"Optical flow","level":3,"score":0.6785774230957031},{"id":"https://openalex.org/C116834253","wikidata":"https://www.wikidata.org/wiki/Q2039217","display_name":"Identification (biology)","level":2,"score":0.6567642688751221},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6333008408546448},{"id":"https://openalex.org/C38349280","wikidata":"https://www.wikidata.org/wiki/Q1434290","display_name":"Flow (mathematics)","level":2,"score":0.5542032718658447},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.3750362992286682},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.17181545495986938},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0885840654373169},{"id":"https://openalex.org/C115961682","wikidata":"https://www.wikidata.org/wiki/Q860623","display_name":"Image (mathematics)","level":2,"score":0.07225039601325989},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2019.2929200","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2929200","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08770244.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:f0622f7f2c504cb2832fba9c75ba5454","is_oa":true,"landing_page_url":"https://doaj.org/article/f0622f7f2c504cb2832fba9c75ba5454","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 7, Pp 114572-114581 (2019)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2019.2929200","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2019.2929200","pdf_url":"https://ieeexplore.ieee.org/ielx7/6287639/8600701/08770244.pdf","source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G8950730377","display_name":null,"funder_award_id":"51978089","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"},{"id":"https://openalex.org/F4320322927","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2963686433.pdf","grobid_xml":"https://content.openalex.org/works/W2963686433.grobid-xml"},"referenced_works_count":24,"referenced_works":["https://openalex.org/W1482815597","https://openalex.org/W1886885333","https://openalex.org/W1922838137","https://openalex.org/W2011128100","https://openalex.org/W2012931101","https://openalex.org/W2049962610","https://openalex.org/W2093796197","https://openalex.org/W2108404684","https://openalex.org/W2110383222","https://openalex.org/W2122361470","https://openalex.org/W2131747574","https://openalex.org/W2164489414","https://openalex.org/W2441864860","https://openalex.org/W2467483865","https://openalex.org/W2497880326","https://openalex.org/W2503288456","https://openalex.org/W2562836854","https://openalex.org/W2596691485","https://openalex.org/W2799352756","https://openalex.org/W2901458268","https://openalex.org/W2914928988","https://openalex.org/W2920069724","https://openalex.org/W4236310464","https://openalex.org/W6730713231"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"A":[0],"crowd":[1,41,92,106],"behavior":[2,107],"identification":[3],"method":[4,126],"is":[5],"proposed":[6,127],"by":[7,27,58],"combining":[8,77],"the":[9,28,34,40,49,54,62,67,73,78,95,120,125],"streakline":[10],"based":[11],"on":[12],"fluid":[13],"mechanics":[14],"with":[15],"a":[16],"high-accurate":[17,29],"variational":[18,30],"optical":[19,31],"flow":[20,32],"model":[21],"in":[22,53,94,108,128],"this":[23,129],"paper.":[24,130],"Firstly,":[25],"calculated":[26],"model,":[33],"streaklines":[35],"are":[36,56,90,116],"used":[37],"to":[38,86,101,118],"acquire":[39],"motion":[42],"trajectory":[43],"information.":[44],"The":[45],"angular":[46,83],"histogram":[47,84],"and":[48,60,69,75,82,99,114,122],"regions":[50,96],"of":[51,66,72,97,105,124],"interest":[52],"scenes":[55],"obtained":[57],"calculating":[59],"clustering":[61],"dasymetric":[63,79],"dot":[64,80],"maps":[65],"starting":[68],"ending":[70],"points":[71],"trajectory,":[74],"then,":[76],"map":[81],"information":[85],"analyze":[87],"whether":[88],"there":[89],"specific":[91],"behaviors":[93],"interest,":[98],"thus":[100],"identify":[102],"different":[103],"types":[104],"such":[109],"scene.":[110],"Finally,":[111],"experimental":[112],"comparison":[113],"analysis":[115],"made":[117],"verify":[119],"effectiveness":[121],"accuracy":[123]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":3},{"year":2020,"cited_by_count":1}],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-10-10T00:00:00"}
