Publicación:
Chronic Pain Estimation Through Deep Facial Descriptors Analysis

dc.contributor.author Mauricio A. es_PE
dc.contributor.author Peña J. es_PE
dc.contributor.author Dianderas E. es_PE
dc.contributor.author Mauricio L. es_PE
dc.contributor.author Díaz J. es_PE
dc.contributor.author Morán A. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2020
dc.description.abstract Worldwide, chronic pain has established as one of the foremost medical issues due to its 35% of comorbidity with depression and many other psychological problems. Traditionally, self-report (VAS scale) or physicist inspection (OPI scale) perform the pain assessment; nonetheless, both methods do not usually coincide [14]. Regarding self-assessment, several patients are not able to complete it objectively, like young children or patients with limited expression abilities. The lack of objectivity in the metrics draws the main problem of the clinical analysis of pain. In response, various efforts have tried concerning the inclusion of objective metrics, among which stand out the Prkachin and Solomon Pain Intensity (PSPI) metric defined by face appearance [5]. This work presents an in-depth learning approach to pain recognition considering deep facial representations and sequence analysis. Contrasting current state-of-the-art deep learning techniques, we correct rigid deformations caught since registration. A preprocessing stage is applied, which includes facial frontalization to untangle facial representations from non-affine transformations, perspective deformations, and outside noises passed since registration. After dealing with unbalanced data, we fine-tune a CNN from a pre-trained model to extract facial features, and then a multilayer RNN exploits temporal relation between video frames. As a result, we overcome state-of-the-art in terms of average accuracy at frames level (80.44%) and sequence level (84.54%) in the UNBC-McMaster Shoulder Pain Expression Archive Database.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1007/978-3-030-46140-9_17
dc.identifier.scopus 2-s2.0-85084840351
dc.identifier.uri https://hdl.handle.net/20.500.12390/2652
dc.language.iso eng
dc.publisher Springer
dc.relation.ispartof Communications in Computer and Information Science
dc.rights info:eu-repo/semantics/openAccess
dc.subject Pain recognition
dc.subject CNN-RNN hybrid architecture es_PE
dc.subject Deep facial representations es_PE
dc.subject.ocde http://purl.org/pe-repo/ocde/ford#2.02.03
dc.title Chronic Pain Estimation Through Deep Facial Descriptors Analysis
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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