{"id":"https://openalex.org/W4321433666","doi":"https://doi.org/10.1155/2023/1561942","title":"Real-Time and Automatic System for Performance Evaluation of Karate Skills Using Motion Capture Sensors and Continuous Wavelet Transform","display_name":"Real-Time and Automatic System for Performance Evaluation of Karate Skills Using Motion Capture Sensors and Continuous Wavelet Transform","publication_year":2023,"publication_date":"2023-02-21","ids":{"openalex":"https://openalex.org/W4321433666","doi":"https://doi.org/10.1155/2023/1561942"},"language":"en","primary_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.1155/2023/1561942","pdf_url":"https://downloads.hindawi.com/journals/ijis/2023/1561942.pdf","source":{"id":"https://openalex.org/S57950554","display_name":"International Journal of Intelligent Systems","issn_l":"0884-8173","issn":["0884-8173","1098-111X"],"is_oa":true,"is_in_doaj":false,"is_indexed_in_scopus":true,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},"type":"article","type_crossref":"journal-article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://downloads.hindawi.com/journals/ijis/2023/1561942.pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5025707658","display_name":"Ahmed Fathalla","orcid":"https://orcid.org/0000-0001-5432-5407"},"institutions":[{"id":"https://openalex.org/I114794399","display_name":"Suez Canal University","ror":"https://ror.org/02m82p074","country_code":"EG","type":"education","lineage":["https://openalex.org/I114794399"]}],"countries":["EG"],"is_corresponding":true,"raw_author_name":"Ahmed Fathalla","raw_affiliation_strings":["Department of Mathematics, Faculty of Science, Suez Canal University, Ismailia City 41522, Egypt"],"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Faculty of Science, Suez Canal University, Ismailia City 41522, Egypt","institution_ids":["https://openalex.org/I114794399"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5039175317","display_name":"Ahmad Salah","orcid":"https://orcid.org/0000-0003-3433-7640"},"institutions":[{"id":"https://openalex.org/I192398990","display_name":"Zagazig University","ror":"https://ror.org/053g6we49","country_code":"EG","type":"funder","lineage":["https://openalex.org/I192398990"]},{"id":"https://openalex.org/I4210114546","display_name":"College of Applied Sciences, Nizwa","ror":"https://ror.org/01xf31a71","country_code":"OM","type":"education","lineage":["https://openalex.org/I4210114546"]}],"countries":["EG","OM"],"is_corresponding":false,"raw_author_name":"Ahmad Salah","raw_affiliation_strings":["Faculty of Computers and Informatics, Zagazig University, Sharkeya City 44523, Egypt","Information Technology Department, College of Computing and Information Science, University of Technology and Applied Sciences, Ibri, Ad-Dhahirah 516, Oman"],"affiliations":[{"raw_affiliation_string":"Faculty of Computers and Informatics, Zagazig University, Sharkeya City 44523, Egypt","institution_ids":["https://openalex.org/I192398990"]},{"raw_affiliation_string":"Information Technology Department, College of Computing and Information Science, University of Technology and Applied Sciences, Ibri, Ad-Dhahirah 516, Oman","institution_ids":["https://openalex.org/I4210114546"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101609362","display_name":"Mahmoud Bekhit","orcid":"https://orcid.org/0000-0002-8115-4233"},"institutions":[{"id":"https://openalex.org/I114017466","display_name":"University of Technology Sydney","ror":"https://ror.org/03f0f6041","country_code":"AU","type":"funder","lineage":["https://openalex.org/I114017466"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Mahmoud Bekhit","raw_affiliation_strings":["Kent Institute Australia, Sydney, Australia","School of Electrical and Data Engineering, University of Technology Sydney (UTS), Sydney 2007, Australia"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Data Engineering, University of Technology Sydney (UTS), Sydney 2007, Australia","institution_ids":["https://openalex.org/I114017466"]},{"raw_affiliation_string":"Kent Institute Australia, Sydney, Australia","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5073879900","display_name":"Esraa Eldesouky","orcid":"https://orcid.org/0000-0002-6519-0963"},"institutions":[{"id":"https://openalex.org/I142608572","display_name":"Prince Sattam Bin Abdulaziz University","ror":"https://ror.org/04jt46d36","country_code":"SA","type":"funder","lineage":["https://openalex.org/I142608572"]},{"id":"https://openalex.org/I114794399","display_name":"Suez Canal University","ror":"https://ror.org/02m82p074","country_code":"EG","type":"education","lineage":["https://openalex.org/I114794399"]}],"countries":["EG","SA"],"is_corresponding":false,"raw_author_name":"Esraa Eldesouky","raw_affiliation_strings":["Computer Science Department, Faculty of Computers and Informatics, Suez Canal University, Ismailia City 41522, Egypt","Department of Computer Science, College of Computer Engineering and Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, College of Computer Engineering and Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia","institution_ids":["https://openalex.org/I142608572"]},{"raw_affiliation_string":"Computer Science Department, Faculty of Computers and Informatics, Suez Canal University, Ismailia City 41522, Egypt","institution_ids":["https://openalex.org/I114794399"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041126099","display_name":"\u0623.\u0645 \u0645\u0634\u06cc\u0631\u0629 \u0625\u0628\u0631\u0627\u0647\u06cc\u0645 \u0645\u062d\u0645\u062f \u0627\u0644\u0639\u062c\u0645\u06cc \u060c \u0623.\u0645 \u0623\u062d\u0645\u062f \u0637\u0644\u062d\u0629 \u062d\u0633\u06cc\u0646 \u062d\u0633\u0627\u0645 \u0627\u0644\u062f\u06cc\u0646","orcid":"https://orcid.org/0000-0003-3730-4393"},"institutions":[{"id":"https://openalex.org/I338016083","display_name":"University of Sadat City","ror":"https://ror.org/05p2q6194","country_code":"EG","type":"education","lineage":["https://openalex.org/I338016083"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Ahmed Talha","raw_affiliation_strings":["Sports Kinesiology Department, Faculty of Sports and Physical Education, University of Sadat City, Monofia 32897, Egypt"],"affiliations":[{"raw_affiliation_string":"Sports Kinesiology Department, Faculty of Sports and Physical Education, University of Sadat City, Monofia 32897, Egypt","institution_ids":["https://openalex.org/I338016083"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065607227","display_name":"Abdalla Zenhom","orcid":null},"institutions":[{"id":"https://openalex.org/I207547235","display_name":"Benha University","ror":"https://ror.org/03tn5ee41","country_code":"EG","type":"funder","lineage":["https://openalex.org/I207547235"]}],"countries":["EG"],"is_corresponding":false,"raw_author_name":"Abdalla Zenhom","raw_affiliation_strings":["Department of Fighting Sports, Faculty of Physical Education, Benha University, Benha, Qalyubia 13511, Egypt"],"affiliations":[{"raw_affiliation_string":"Department of Fighting Sports, Faculty of Physical Education, Benha University, Benha, Qalyubia 13511, Egypt","institution_ids":["https://openalex.org/I207547235"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5042270147","display_name":"Ahmed Ali","orcid":"https://orcid.org/0000-0003-2775-4104"},"institutions":[{"id":"https://openalex.org/I142608572","display_name":"Prince Sattam Bin Abdulaziz University","ror":"https://ror.org/04jt46d36","country_code":"SA","type":"funder","lineage":["https://openalex.org/I142608572"]},{"id":"https://openalex.org/I4210156809","display_name":"Future Academy","ror":"https://ror.org/0570trv98","country_code":"EG","type":"education","lineage":["https://openalex.org/I4210156809"]}],"countries":["EG","SA"],"is_corresponding":false,"raw_author_name":"Ahmed Ali","raw_affiliation_strings":["Department of Computer Science, College of Computer Engineering and Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia","Higher Future Institute for Specialized Technological Studies, Cairo 3044, Egypt"],"affiliations":[{"raw_affiliation_string":"Department of Computer Science, College of Computer Engineering and Sciences, Prince Sattam Bin Abdulaziz University, Al-Kharj 11942, Saudi Arabia","institution_ids":["https://openalex.org/I142608572"]},{"raw_affiliation_string":"Higher Future Institute for Specialized Technological Studies, Cairo 3044, Egypt","institution_ids":["https://openalex.org/I4210156809"]}]}],"institution_assertions":[],"countries_distinct_count":4,"institutions_distinct_count":8,"corresponding_author_ids":["https://openalex.org/A5025707658"],"corresponding_institution_ids":["https://openalex.org/I114794399"],"apc_list":{"value":2500,"currency":"USD","value_usd":2500},"apc_paid":{"value":2500,"currency":"USD","value_usd":2500},"fwci":0.931,"has_fulltext":true,"fulltext_origin":"pdf","cited_by_count":5,"citation_normalized_percentile":{"value":0.76553,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":88,"max":90},"biblio":{"volume":"2023","issue":null,"first_page":"1","last_page":"11"},"is_retracted":false,"is_paratext":false,"primary_topic":{"id":"https://openalex.org/T10812","display_name":"Human Pose and Action Recognition","score":0.9919,"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/T10812","display_name":"Human Pose and Action Recognition","score":0.9919,"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/T11439","display_name":"Video Analysis and Summarization","score":0.9884,"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":0.9521,"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/continuous-wavelet-transform","display_name":"Continuous wavelet transform","score":0.5371448}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6301834},{"id":"https://openalex.org/C104114177","wikidata":"https://www.wikidata.org/wiki/Q79782","display_name":"Motion (physics)","level":2,"score":0.62825507},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5884769},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.55319273},{"id":"https://openalex.org/C95722684","wikidata":"https://www.wikidata.org/wiki/Q2622756","display_name":"Continuous wavelet transform","level":5,"score":0.5371448},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.53484553},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.49393922},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.34634265},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.31732175}],"mesh":[],"locations_count":1,"locations":[{"is_oa":true,"landing_page_url":"https://doi.org/10.1155/2023/1561942","pdf_url":"https://downloads.hindawi.com/journals/ijis/2023/1561942.pdf","source":{"id":"https://openalex.org/S57950554","display_name":"International Journal of Intelligent Systems","issn_l":"0884-8173","issn":["0884-8173","1098-111X"],"is_oa":true,"is_in_doaj":false,"is_indexed_in_scopus":true,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true}],"best_oa_location":{"is_oa":true,"landing_page_url":"https://doi.org/10.1155/2023/1561942","pdf_url":"https://downloads.hindawi.com/journals/ijis/2023/1561942.pdf","source":{"id":"https://openalex.org/S57950554","display_name":"International Journal of Intelligent Systems","issn_l":"0884-8173","issn":["0884-8173","1098-111X"],"is_oa":true,"is_in_doaj":false,"is_indexed_in_scopus":true,"is_core":true,"host_organization":"https://openalex.org/P4310320595","host_organization_name":"Wiley","host_organization_lineage":["https://openalex.org/P4310320595"],"host_organization_lineage_names":["Wiley"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true},"sustainable_development_goals":[{"display_name":"Quality education","score":0.64,"id":"https://metadata.un.org/sdg/4"}],"grants":[],"datasets":[],"versions":[],"referenced_works_count":39,"referenced_works":["https://openalex.org/W116902681","https://openalex.org/W2008614670","https://openalex.org/W2011301426","https://openalex.org/W2061246025","https://openalex.org/W2065924449","https://openalex.org/W2078162400","https://openalex.org/W2080761477","https://openalex.org/W2088136385","https://openalex.org/W2115755118","https://openalex.org/W2120352197","https://openalex.org/W2132783737","https://openalex.org/W2140190241","https://openalex.org/W2155624091","https://openalex.org/W2168130065","https://openalex.org/W2168182791","https://openalex.org/W2219948256","https://openalex.org/W2342249984","https://openalex.org/W2531406253","https://openalex.org/W2652015611","https://openalex.org/W2738617613","https://openalex.org/W2747672283","https://openalex.org/W2785698948","https://openalex.org/W2897960454","https://openalex.org/W2899155139","https://openalex.org/W2908448204","https://openalex.org/W2908511932","https://openalex.org/W2946577492","https://openalex.org/W2970446433","https://openalex.org/W2970840311","https://openalex.org/W2990139849","https://openalex.org/W2991307550","https://openalex.org/W3003257820","https://openalex.org/W3041289012","https://openalex.org/W3108735224","https://openalex.org/W3121432903","https://openalex.org/W3203521505","https://openalex.org/W3211522713","https://openalex.org/W3216902082","https://openalex.org/W4296097334"],"related_works":["https://openalex.org/W598225674","https://openalex.org/W4245420407","https://openalex.org/W3199035354","https://openalex.org/W3143644526","https://openalex.org/W2094847008","https://openalex.org/W2085792030","https://openalex.org/W2077021924","https://openalex.org/W183670115","https://openalex.org/W1807354010","https://openalex.org/W1501179639"],"abstract_inverted_index":{"In":[0,102,125,150],"sports":[1],"science,":[2],"the":[3,15,20,91,95,126,151,154,162,167,186,197,206,215,239,250,254,260,279,285,288],"automation":[4],"of":[5,24,29,57,81,278,287],"performance":[6,21,30,67,80,236,255,261],"analysis":[7,22,31,46,50,68],"and":[8,18,32,69,112,192,219,291],"assessment":[9,33,70],"is":[10,177,247,256,262,268],"urgently":[11],"required":[12,97],"to":[13,52,98,161,165,184,284],"increase":[14],"evaluation":[16],"accuracy":[17],"decrease":[19],"time":[23,96],"a":[25,58,88,100,147,180,243],"subject.":[26,59],"Existing":[27],"methods":[28],"are":[34,130,145,159,232,282,292],"either":[35],"performed":[36],"manually":[37],"based":[38,209,270],"on":[39,107,210,271],"human":[40,77],"experts\u2019":[41],"opinions":[42],"or":[43],"using":[44,132,179],"motion":[45,133],"software,":[47,51],"i.e.,":[48,214],"biomechanical":[49,163],"assess":[53],"only":[54,108],"one":[55],"side":[56],"Therefore,":[60],"we":[61,105,204],"propose":[62],"an":[63],"automated":[64],"system":[65,120,267,281],"for":[66,75,238,295],"that":[71],"can":[72,84],"be":[73,85],"used":[74],"any":[76,82],"movement.":[78],"The":[79,118,265,276],"skill":[83],"described":[86],"by":[87,249],"curve":[89,176,188,246],"depicting":[90],"joint":[92,114,169,174,198,240,245],"angle":[93,170,175],"over":[94],"perform":[99],"skill.":[101,149],"this":[103],"study,":[104],"focus":[106],"14":[109],"body":[110],"joints,":[111],"each":[113,173],"comprises":[115,121],"three":[116,122],"angles.":[117],"proposed":[119,266,280],"main":[123,187],"stages.":[124],"first":[127],"stage,":[128,153],"data":[129,157],"obtained":[131,158],"capture":[134],"inertial":[135],"measurement":[136],"unit":[137],"sensors":[138],"from":[139,200],"top":[140,202],"professional":[141],"fighters/players":[142],"while":[143],"they":[144],"performing":[146],"certain":[148],"second":[152],"collected":[155],"sensor":[156],"input":[160],"software":[164],"extract":[166,185],"player\u2019s":[168,244],"curve.":[171],"Finally,":[172,194],"processed":[178],"continuous":[181],"wavelet":[182],"transform":[183],"points":[189],"(i.e.,":[190],"peaks":[191],"valleys).":[193],"after":[195],"extracting":[196],"curves":[199,208,231,237],"several":[201],"players,":[203],"summarize":[205],"players\u2019":[207],"five":[211,229,251],"statistical":[212],"indicators,":[213],"minimum,":[216],"maximum,":[217],"mean,":[218],"mean":[220],"":[223],"\u00b1":[224],"":[225],"standard":[226,235],"deviation.":[227],"These":[228],"summarized":[230,252],"regarded":[233],"as":[234],"angle.":[241],"When":[242],"surrounded":[248],"curves,":[253],"considered":[257,263],"acceptable.":[258],"Otherwise,":[259],"unsatisfactory.":[264],"evaluated":[269],"four":[272],"different":[273],"karate":[274],"skills.":[275],"results":[277],"identical":[283],"decisions":[286],"expert":[289],"panels":[290],"thus":[293],"suitable":[294],"real-time":[296],"decisions.":[297]},"abstract_inverted_index_v3":null,"cited_by_api_url":"https://api.openalex.org/works?filter=cites:W4321433666","counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3}],"updated_date":"2025-04-08T04:45:48.582637","created_date":"2023-02-22"}