CASME II: an improved spontaneous micro-expression database and the baseline evaluation.

A robust automatic micro-expression recognition system would have broad applications in national safety, police interrogation, and clinical diagnosis. Developing such a system requires high quality databases with sufficient training samples which are currently not available. We reviewed the previous...

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Autores principales:	Wen-Jing Yan, Xiaobai Li, Su-Jing Wang, Guoying Zhao, Yong-Jin Liu, Yu-Hsin Chen, Xiaolan Fu
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2014
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/ca8e4ec3936e40c08c56976582d5181b
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spelling	oai:doaj.org-article:ca8e4ec3936e40c08c56976582d5181b2021-11-18T08:35:45ZCASME II: an improved spontaneous micro-expression database and the baseline evaluation.1932-620310.1371/journal.pone.0086041https://doaj.org/article/ca8e4ec3936e40c08c56976582d5181b2014-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/24475068/?tool=EBIhttps://doaj.org/toc/1932-6203A robust automatic micro-expression recognition system would have broad applications in national safety, police interrogation, and clinical diagnosis. Developing such a system requires high quality databases with sufficient training samples which are currently not available. We reviewed the previously developed micro-expression databases and built an improved one (CASME II), with higher temporal resolution (200 fps) and spatial resolution (about 280×340 pixels on facial area). We elicited participants' facial expressions in a well-controlled laboratory environment and proper illumination (such as removing light flickering). Among nearly 3000 facial movements, 247 micro-expressions were selected for the database with action units (AUs) and emotions labeled. For baseline evaluation, LBP-TOP and SVM were employed respectively for feature extraction and classifier with the leave-one-subject-out cross-validation method. The best performance is 63.41% for 5-class classification.Wen-Jing YanXiaobai LiSu-Jing WangGuoying ZhaoYong-Jin LiuYu-Hsin ChenXiaolan FuPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 9, Iss 1, p e86041 (2014)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Wen-Jing Yan Xiaobai Li Su-Jing Wang Guoying Zhao Yong-Jin Liu Yu-Hsin Chen Xiaolan Fu CASME II: an improved spontaneous micro-expression database and the baseline evaluation.
description	A robust automatic micro-expression recognition system would have broad applications in national safety, police interrogation, and clinical diagnosis. Developing such a system requires high quality databases with sufficient training samples which are currently not available. We reviewed the previously developed micro-expression databases and built an improved one (CASME II), with higher temporal resolution (200 fps) and spatial resolution (about 280×340 pixels on facial area). We elicited participants' facial expressions in a well-controlled laboratory environment and proper illumination (such as removing light flickering). Among nearly 3000 facial movements, 247 micro-expressions were selected for the database with action units (AUs) and emotions labeled. For baseline evaluation, LBP-TOP and SVM were employed respectively for feature extraction and classifier with the leave-one-subject-out cross-validation method. The best performance is 63.41% for 5-class classification.
format	article
author	Wen-Jing Yan Xiaobai Li Su-Jing Wang Guoying Zhao Yong-Jin Liu Yu-Hsin Chen Xiaolan Fu
author_facet	Wen-Jing Yan Xiaobai Li Su-Jing Wang Guoying Zhao Yong-Jin Liu Yu-Hsin Chen Xiaolan Fu
author_sort	Wen-Jing Yan
title	CASME II: an improved spontaneous micro-expression database and the baseline evaluation.
title_short	CASME II: an improved spontaneous micro-expression database and the baseline evaluation.
title_full	CASME II: an improved spontaneous micro-expression database and the baseline evaluation.
title_fullStr	CASME II: an improved spontaneous micro-expression database and the baseline evaluation.
title_full_unstemmed	CASME II: an improved spontaneous micro-expression database and the baseline evaluation.
title_sort	casme ii: an improved spontaneous micro-expression database and the baseline evaluation.
publisher	Public Library of Science (PLoS)
publishDate	2014
url	https://doaj.org/article/ca8e4ec3936e40c08c56976582d5181b
work_keys_str_mv	AT wenjingyan casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation AT xiaobaili casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation AT sujingwang casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation AT guoyingzhao casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation AT yongjinliu casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation AT yuhsinchen casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation AT xiaolanfu casmeiianimprovedspontaneousmicroexpressiondatabaseandthebaselineevaluation
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CASME II: an improved spontaneous micro-expression database and the baseline evaluation.

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