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Recognition method ...
Recognition method for neonatal pain expression based on LBP feature and sparse representation
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- Lu, Guanming (författare)
- College of Telecommunications & Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China
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- Shi, Wanwan (författare)
- College of Telecommunications & Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China
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- Li, Xu (författare)
- College of Telecommunications & Information Engineering, Nanjing University of Posts and Telecommunications, Nanjing, China
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- Li, Xiaonan (författare)
- Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing, China
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- Chen, Mengying (författare)
- Nanjing Children's Hospital Affiliated to Nanjing Medical University, Nanjing, China
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- Liu, Li, 1965- (författare)
- Umeå universitet,Institutionen för tillämpad fysik och elektronik
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(creator_code:org_t)
- Journal of Nanjing Institute of Posts and Telecommunications, 2015
- 2015
- Engelska.
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Ingår i: Journal of Nanjing University of Posts and Telecommunications. - : Journal of Nanjing Institute of Posts and Telecommunications. - 1673-5439. ; 35:1, s. 19-25
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Facial expressions are considered as a reliable indicator in neonatal pain assessment. This paper proposes a novel recognition method for neonatal pain expression. The method can utilize the feature descriptors based on the weighted local binary pattern (LBP) and the classifier based on sparse representation. Firstly, the normalized facial image is described using a feature vector, which is histogram sequence obtained by concatenating the weighted histograms of the LBP feature maps of all the local blocks. Then, the principalc component analysis (PCA) method is used to reduce the dimensions of the feature vector of training and test samples. Finally, the over-complete dictionary is built and the classifier based on sparse representation is used to classify test samples into four classes of facial expressions: calm, crying, mild pain, and severe pain. The objective of this study is to assist the clinicians in assessing neonatal pain by utilizing computer-based image analysis techniques. Experimental results on neonate facial image database show the effectiveness of the proposed method. The classification accuracy rate reaches 84.50%.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- Expression recognition
- Local binary pattern (LBP)
- Neonate
- Pain expression
- Sparse representation
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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