{"id":"https://openalex.org/W1972056829","doi":"https://doi.org/10.1109/robio.2014.7090693","title":"Expression image preprocessing based on wavelet transform","display_name":"Expression image preprocessing based on wavelet transform","publication_year":2014,"publication_date":"2014-12-01","ids":{"openalex":"https://openalex.org/W1972056829","doi":"https://doi.org/10.1109/robio.2014.7090693","mag":"1972056829"},"language":"en","primary_location":{"id":"doi:10.1109/robio.2014.7090693","is_oa":false,"landing_page_url":"https://doi.org/10.1109/robio.2014.7090693","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE International Conference on Robotics and Biomimetics (ROBIO 2014)","raw_type":"proceedings-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/A5087237198","display_name":"Changqin Quan","orcid":"https://orcid.org/0000-0002-3930-8163"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Changqin Quan","raw_affiliation_strings":["The Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine, Hefei University of Technology, Hefei, China P.R","Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine, School of Computer and Information, Hefei University of Technology, Hefei, 230009, China, P.R"],"affiliations":[{"raw_affiliation_string":"The Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine, Hefei University of Technology, Hefei, China P.R","institution_ids":["https://openalex.org/I16365422"]},{"raw_affiliation_string":"Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine, School of Computer and Information, Hefei University of Technology, Hefei, 230009, China, P.R","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053887864","display_name":"Xiaoming Xu","orcid":"https://orcid.org/0000-0003-1149-7123"},"institutions":[{"id":"https://openalex.org/I16365422","display_name":"Hefei University of Technology","ror":"https://ror.org/02czkny70","country_code":"CN","type":"education","lineage":["https://openalex.org/I16365422"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaoming Xu","raw_affiliation_strings":["Hefei University of Technology, Hefei, Anhui, CN","Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine, School of Computer and Information, Hefei University of Technology, Hefei, 230009, P.R. China"],"affiliations":[{"raw_affiliation_string":"Hefei University of Technology, Hefei, Anhui, CN","institution_ids":["https://openalex.org/I16365422"]},{"raw_affiliation_string":"Anhui Province Key Laboratory of Affective Computing and Advanced Intelligent Machine, School of Computer and Information, Hefei University of Technology, Hefei, 230009, P.R. China","institution_ids":["https://openalex.org/I16365422"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5071943346","display_name":"Fuji Ren","orcid":"https://orcid.org/0000-0003-4860-9184"},"institutions":[{"id":"https://openalex.org/I922474255","display_name":"Tokushima University","ror":"https://ror.org/044vy1d05","country_code":"JP","type":"education","lineage":["https://openalex.org/I922474255"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fuji Ren","raw_affiliation_strings":["The University of Tokushima, Tokushima, Japan","University of Tokushima, Shinkura-cho, Tokushima770-8501, Japan"],"affiliations":[{"raw_affiliation_string":"The University of Tokushima, Tokushima, Japan","institution_ids":["https://openalex.org/I922474255"]},{"raw_affiliation_string":"University of Tokushima, Shinkura-cho, Tokushima770-8501, Japan","institution_ids":["https://openalex.org/I922474255"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5087237198"],"corresponding_institution_ids":["https://openalex.org/I16365422"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.05145798,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"3","issue":null,"first_page":"2374","last_page":"2377"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10057","display_name":"Face and Expression Recognition","score":0.9986000061035156,"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/T10057","display_name":"Face and Expression Recognition","score":0.9986000061035156,"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/T10824","display_name":"Image Retrieval and Classification Techniques","score":0.9932000041007996,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9686999917030334,"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":0.7607093453407288},{"id":"https://openalex.org/keywords/wavelet-transform","display_name":"Wavelet transform","score":0.7397991418838501},{"id":"https://openalex.org/keywords/preprocessor","display_name":"Preprocessor","score":0.7154624462127686},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.6839765310287476},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5908308029174805},{"id":"https://openalex.org/keywords/wavelet","display_name":"Wavelet","score":0.5634562969207764},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.5548471212387085},{"id":"https://openalex.org/keywords/expression","display_name":"Expression (computer science)","score":0.5481321811676025},{"id":"https://openalex.org/keywords/gabor-wavelet","display_name":"Gabor wavelet","score":0.5450659990310669},{"id":"https://openalex.org/keywords/second-generation-wavelet-transform","display_name":"Second-generation wavelet transform","score":0.5019574165344238},{"id":"https://openalex.org/keywords/discrete-wavelet-transform","display_name":"Discrete wavelet transform","score":0.47906550765037537},{"id":"https://openalex.org/keywords/gabor-transform","display_name":"Gabor transform","score":0.45946168899536133},{"id":"https://openalex.org/keywords/wavelet-packet-decomposition","display_name":"Wavelet packet decomposition","score":0.4512450397014618},{"id":"https://openalex.org/keywords/harmonic-wavelet-transform","display_name":"Harmonic wavelet transform","score":0.45042240619659424},{"id":"https://openalex.org/keywords/stationary-wavelet-transform","display_name":"Stationary wavelet transform","score":0.44343918561935425},{"id":"https://openalex.org/keywords/time\u2013frequency-analysis","display_name":"Time\u2013frequency analysis","score":0.28422996401786804}],"concepts":[{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.7607093453407288},{"id":"https://openalex.org/C196216189","wikidata":"https://www.wikidata.org/wiki/Q2867","display_name":"Wavelet transform","level":3,"score":0.7397991418838501},{"id":"https://openalex.org/C34736171","wikidata":"https://www.wikidata.org/wiki/Q918333","display_name":"Preprocessor","level":2,"score":0.7154624462127686},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.6839765310287476},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5908308029174805},{"id":"https://openalex.org/C47432892","wikidata":"https://www.wikidata.org/wiki/Q831390","display_name":"Wavelet","level":2,"score":0.5634562969207764},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.5548471212387085},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.5481321811676025},{"id":"https://openalex.org/C136902061","wikidata":"https://www.wikidata.org/wiki/Q16981559","display_name":"Gabor wavelet","level":5,"score":0.5450659990310669},{"id":"https://openalex.org/C111350171","wikidata":"https://www.wikidata.org/wiki/Q7443700","display_name":"Second-generation wavelet transform","level":5,"score":0.5019574165344238},{"id":"https://openalex.org/C46286280","wikidata":"https://www.wikidata.org/wiki/Q2414958","display_name":"Discrete wavelet transform","level":4,"score":0.47906550765037537},{"id":"https://openalex.org/C173149727","wikidata":"https://www.wikidata.org/wiki/Q996397","display_name":"Gabor transform","level":4,"score":0.45946168899536133},{"id":"https://openalex.org/C155777637","wikidata":"https://www.wikidata.org/wiki/Q2736187","display_name":"Wavelet packet decomposition","level":4,"score":0.4512450397014618},{"id":"https://openalex.org/C1109138","wikidata":"https://www.wikidata.org/wiki/Q3280930","display_name":"Harmonic wavelet transform","level":5,"score":0.45042240619659424},{"id":"https://openalex.org/C73339587","wikidata":"https://www.wikidata.org/wiki/Q1375942","display_name":"Stationary wavelet transform","level":5,"score":0.44343918561935425},{"id":"https://openalex.org/C142433447","wikidata":"https://www.wikidata.org/wiki/Q7806653","display_name":"Time\u2013frequency analysis","level":3,"score":0.28422996401786804},{"id":"https://openalex.org/C106131492","wikidata":"https://www.wikidata.org/wiki/Q3072260","display_name":"Filter (signal processing)","level":2,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/robio.2014.7090693","is_oa":false,"landing_page_url":"https://doi.org/10.1109/robio.2014.7090693","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2014 IEEE International Conference on Robotics and Biomimetics (ROBIO 2014)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Gender equality","id":"https://metadata.un.org/sdg/5","score":0.550000011920929}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W190009451","https://openalex.org/W1994780340","https://openalex.org/W2006431213","https://openalex.org/W2016005696","https://openalex.org/W2033773055","https://openalex.org/W2090723329","https://openalex.org/W2093797275","https://openalex.org/W2104175489","https://openalex.org/W2109774206","https://openalex.org/W2125936497","https://openalex.org/W2130972944","https://openalex.org/W2142136025","https://openalex.org/W2145310492","https://openalex.org/W2154164341","https://openalex.org/W2164598857","https://openalex.org/W2171937595","https://openalex.org/W4230190357"],"related_works":["https://openalex.org/W2088723847","https://openalex.org/W1967182499","https://openalex.org/W1588899229","https://openalex.org/W2085792030","https://openalex.org/W2044436710","https://openalex.org/W2144408025","https://openalex.org/W2120966954","https://openalex.org/W2023142747","https://openalex.org/W2375687766","https://openalex.org/W2064370686"],"abstract_inverted_index":{"In":[0],"this":[1,87],"paper,":[2],"we":[3,17,46],"present":[4],"a":[5],"new":[6],"image":[7],"preprocessing":[8],"method":[9],"which":[10],"is":[11],"based":[12],"on":[13,57],"Wavelet":[14,22,68],"Transform.":[15],"Before":[16],"extract":[18,41],"expression":[19,42,77],"texture":[20],"information,":[21],"transform":[23],"will":[24,37],"be":[25,38],"applied":[26],"to":[27,40,52],"remove":[28],"partial":[29],"high":[30],"frequency":[31],"information.":[32,43],"And":[33],"then":[34],"Gabor":[35,71],"Transform":[36,69],"used":[39],"At":[44],"last":[45],"chose":[47],"the":[48,58,67,80,84],"Support":[49],"Vector":[50],"Machine":[51],"classify":[53],"facial":[54,76],"expressions.":[55],"Experiments":[56],"Japanese":[59],"Female":[60],"Facial":[61],"Expression":[62],"(JAFFE)":[63],"Database":[64],"illustrate":[65],"that":[66],"and":[70],"features":[72],"are":[73],"effective":[74],"for":[75],"discrimination.":[78],"Additionally,":[79],"experiment":[81],"results":[82],"validate":[83],"feasibility":[85],"of":[86],"method.":[88]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
