Banca de DEFESA: GIULIANA SILVA BEZERRA

Uma banca de DEFESA de MESTRADO foi cadastrada pelo programa.
DISCENTE: GIULIANA SILVA BEZERRA
DATA: 12/12/2014
HORA: 08:30
LOCAL: Auditório do Centro de Ciência Exatas e da Terra (CCET)
TÍTULO:

A framework for investigating the use of face features to identify naturally generated emotion


PALAVRAS-CHAVES:

Facial expression recognition, Face biometrics, Emotion analysis, Action units.


PÁGINAS: 105
GRANDE ÁREA: Ciências Exatas e da Terra
ÁREA: Ciência da Computação
SUBÁREA: Metodologia e Técnicas da Computação
ESPECIALIDADE: Processamento Gráfico (Graphics)
RESUMO:

Emotion-based analysis has raised a lot of interest, particularly in areas such as forensics, medicine, music, psychology, and human-machine interface. Following this trend, the use of facial analysis (either automatic or human-based) is the most common subject to be investigated once this type of data can easily be collected and is well accepted in the literature as a metric for inference of emotional states. Despite this popularity, due to several constraints found in real world scenarios (e.g. lightning, complex backgrounds, facial hair and so on), automatically obtaining affective information from face accurately is a very challenging accomplishment. This work presents a framework which aims to analyse emotional experiences through naturally generated facial expressions. Our main contribution is a new 4-dimensional model to describe emotional experiences in terms of appraisal, facial expressions, mood, and subjective experiences. In addition, we present an experiment using a new protocol proposed to obtain spontaneous emotional reactions. The results have suggested that the initial emotional state described by the participants of the experiment was different from that described after the exposure to the eliciting stimulus, thus showing that the used stimuli were capable of inducing the expected emotional states in most individuals. Moreover, our results pointed out that spontaneous facial reactions to emotions are very different from those in prototypic expressions due to the lack of expressiveness in the latter.


MEMBROS DA BANCA:
Interno - 2177445 - BRUNO MOTTA DE CARVALHO
Interno - 2524467 - MARJORY CRISTIANY DA COSTA ABREU
Externo ao Programa - 1350337 - FIVIA DE ARAUJO LOPES
Externo à Instituição - WILLIAM ROBSON SCHWARTZ - UFMG
Notícia cadastrada em: 24/11/2014 15:28
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