Tabular data augmentation for video-based detection of hypomimia in Parkinson's disease

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MetadadosDescriçãoIdioma
Autor(es): dc.contributorUniversidade Estadual Paulista (UNESP)-
Autor(es): dc.contributorRoyal Melbourne Institute of Technology-
Autor(es): dc.contributorUniversity of Wolverhampton-
Autor(es): dc.creatorOliveira, Guilherme C.-
Autor(es): dc.creatorNgo, Quoc C.-
Autor(es): dc.creatorPassos, Leandro A.-
Autor(es): dc.creatorPapa, João P.-
Autor(es): dc.creatorJodas, Danilo S.-
Autor(es): dc.creatorKumar, Dinesh-
Data de aceite: dc.date.accessioned2025-08-21T22:35:57Z-
Data de disponibilização: dc.date.available2025-08-21T22:35:57Z-
Data de envio: dc.date.issued2025-04-29-
Data de envio: dc.date.issued2023-10-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1016/j.cmpb.2023.107713-
Fonte completa do material: dc.identifierhttps://hdl.handle.net/11449/300552-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/300552-
Descrição: dc.descriptionBackground and Objective: This paper presents a method for the computerized detection of hypomimia in people with Parkinson's disease (PD). It overcomes the difficulty of the small and unbalanced size of available datasets. Methods: A public dataset consisting of features of the video recordings of people with PD with four facial expressions was used. Synthetic data was generated using a Conditional Generative Adversarial Network (CGAN) for training augmentation. After training the model, Test-Time Augmentation was performed. The classification was conducted using the original test set to prevent bias in the results. Results: The employment of CGAN followed by Test-Time Augmentation led to an accuracy of classification of the videos of 83%, specificity of 82%, and sensitivity of 85% in the test set that the prevalence of PD was around 7% and where real data was used for testing. This is a significant improvement compared with other similar studies. The results show that while the technique was able to detect people with PD, there were a number of false positives. Hence this is suitable for applications such as population screening or assisting clinicians, but at this stage is not suitable for diagnosis. Conclusions: This work has the potential for assisting neurologists to perform online diagnose and monitoring their patients. However, it is essential to test this for different ethnicity and to test its repeatability.-
Descrição: dc.descriptionSchool of Sciences São Paulo State University-
Descrição: dc.descriptionSchool of Engineering Royal Melbourne Institute of Technology-
Descrição: dc.descriptionCMI Lab School of Engineering and Informatics University of Wolverhampton-
Descrição: dc.descriptionSchool of Sciences São Paulo State University-
Idioma: dc.languageen-
Relação: dc.relationComputer Methods and Programs in Biomedicine-
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Palavras-chave: dc.subjectCGAN-
Palavras-chave: dc.subjectData Augmentation-
Palavras-chave: dc.subjectFacial expression-
Palavras-chave: dc.subjectHypomimia-
Palavras-chave: dc.subjectParkinson's disease-
Título: dc.titleTabular data augmentation for video-based detection of hypomimia in Parkinson's disease-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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