Faces Recognition
Mostrando 13-24 de 77 artigos, teses e dissertações.
-
13. Reconhecimento de face utilizando transformada discreta do cosseno bidimensional, análise de componentes principais bidimensional e mapas auto-organizáveis concorrentes
A identificação de uma pessoa pela sua face é um dos métodos não-intrusivo mais efetivo em biometria, no entanto, também é um dos maiores desafios para os pesquisadores na área; consistindo em pesquisas em psicofísica, neurociência, engenharia, reconhecimento de padrões, análise e processamento de imagens, e visão computacional aplicada no recon
Publicado em: 2010
-
14. FACIAL ATTRACTIVENESS AND EMOTIONAL EXPRESSIONS: IS THERE A RELATIONSHIP TO PUPIL DIAMETER? / Atratividade facial e expressões emocionais: existe relação com o diâmetro da pupila?
This research aimed to evaluate the role of the pupil diameter in attractiveness between individuals of opposite sex and to check the relationship between pupil diameter and some emotional expressions considered universal. Analyzed through both quantitative and qualitative methods, the research was divided into two independent studies. The stimuli for both o
Publicado em: 2010
-
15. Um Sistema de Identificação Automática de Faces para Ambientes Virtuais de Aprendizagem
O aumento da demanda pela modalidade de Educação a Distância e o surgimento e aperfeiçoamento dos Ambientes Virtuais de Aprendizagem (AVA) apresentam-se num cenário em que se pretende minimizar distâncias e dinamizar estratégias de monitoramento dos alunos. No entanto, os AVA atuais não dispõem de recursos que identifiquem os usuários durante o des
Publicado em: 2009
-
16. Combinação de múltiplos classificadores para reconhecimento de face humana
Lately, the human face object has been exploited by the advent of systems involving biometrics, especially for applications in security. One of the most challenging applications is the problem of human face recognition, which consists of determining the correspondence between an input face and an individual from a database of known persons. The process of fa
Publicado em: 2009
-
17. SegmentaÃÃo e classificaÃÃo de padrÃes visuais baseadas em campos receptivos e inibitÃrios
The human visual system is one of the most fascinating mechanisms from nature. It is through the visual system that humans are able to accomplish their most basic tasks, like watching TV, until the most complexes ones, like making microscopic analysis in laboratories. Then, two models based on the behavior of the human visual system are proposed in this work
Publicado em: 2009
-
18. The identity of the artist of circus / A identidade saltimbanco
This research had as a central objective to set closer of the content of circus artist identity to be able to establish reflections about circus artist identity. In front of several possibilities that began in the search of this complex that is the identity, it was establish initial scenery where could be extract specific data that led to analysis with reach
Publicado em: 2009
-
19. Caricatura e reconhecimento de faces / Caricature and face recognition
A caricature is an exaggeration of distinctive facial features and is generally recognized just as well as an undistorted photograph of a face. Caricatures can be generated by exaggerating the differences between a face and a prototypical face (average face) and an anticaricature can be generated by reducing those differences. The aim of this study was to in
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/01/2008
-
20. Serotonergic modulation of face-emotion recognition
Facial expressions of basic emotions have been widely used to investigate the neural substrates of emotion processing, but little is known about the exact meaning of subjective changes provoked by perceiving facial expressions. Our assumption was that fearful faces would be related to the processing of potential threats, whereas angry faces would be related
Brazilian Journal of Medical and Biological Research. Publicado em: 2008-04
-
21. Efeitos do escitalopram sobre a identificação de expressões faciais / Effects of escitalopram on the processing of emotional faces.
ALVES NETO, W.C. Effects of escitalopram on the processing of emotional faces. Ribeirão Preto, SP: Faculty of Medicine of Ribeirão Preto, University of São Paulo; 2008. The selective serotonin reuptake inhibitors (SSRI) have been used successfully for the treatment of various psychiatry disorders. The SSRI clinical efficacy is attributed to an enhancement
Publicado em: 2008
-
22. Comparison between illumination normalization methods used to improve the rate of facial recognition / Comparação entre métodos de normalização de iluminação utilizados para melhorar a taxa do reconhecimento facial
Distinct lighting conditions in an image can produce unequal representations of the same object, compromising segmentation and pattern recognition processes, including facial recognition. Hence, the lighting distribution on an image is considered of great importance, and normalization algorithms using new techniques have still been researched. This research
Publicado em: 2008
-
23. Sistema de visão computacional sobre processadores com arquitetura multi núcleos. / System of computational vision over multicore architecture processors.
Esta tese apresenta um estudo sobre a implementação de sistema de detecção e reconhecimento de faces no processador CELL na plataforma CBE, utilizando um sistema Playstation 3. Inicialmente, diversas abordagens para reconhecimento e detecção de faces são estudadas, bem como arquiteturas de processador multi núcleos. São apresentadas três implementa
Publicado em: 2008
-
24. Qualitative recognition of small external root resorptions radicular through imagem radiography conventional and digital radiography and through computerized tomography / Reconhecimento qualitativo de pequenas reabsorções externas radiculares dentais por meio de imagens radiográficas convencionais, digitais e tomográficas
The purpose of this study was to evaluate in vitro the efficiency of conventional and digital radiography when compared to the computerized tomography (CT) on diagnose of external root resorptions in different root locations. It was used 6 upper teeth: 2 right and left central incisors, 2 right and left lateral incisors, and 2 right and left canines. Simulat
Publicado em: 2008