Human Visual System
Mostrando 1-12 de 126 artigos, teses e dissertações.
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1. Virtual Reality simulator for dental anesthesia training in the inferior alveolar nerve block
Abstract Objectives This study shows the development and validation of a dental anesthesia-training simulator, specifically for the inferior alveolar nerve block (IANB). The system developed provides the tactile sensation of inserting a real needle in a human patient, using Virtual Reality (VR) techniques and a haptic device that can provide a perceived fo
J. Appl. Oral Sci.. Publicado em: 2017-08
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2. Humans tend to walk in circles as directed by memorized visual locations at large distances
Human veering while walking blindfolded or walking straight without any visual cues has been widely studied over the last 100 years, but the results are still controversial. The present study attempted to describe and understand the human ability to maintain the direction of a trajectory while walking without visual or audio cues with reference to a proposed
Psychol. Neurosci.. Publicado em: 2014-12
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3. Spectrophotometric analysis of crown discoloration induced by MTA- and ZnOE-based sealers
Crown discoloration can be induced by root canal sealer remnants following root canal treatment. Objective: The aim of this study was to evaluate chromatic alterations in human tooth crowns induced by a Mineral Trioxide Aggregate-based sealer (MTA Fillapex®) and a commonly used ZnOE-based sealer (Roth-811). The tested null hypothesis was that the applicati
J. Appl. Oral Sci.. Publicado em: 2013-04
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4. Functional vision barriers: a new concept analyzed in terms of human visual performance
In this work we introduce a new category of barriers that we call "functional vision barriers." This expression refers to lighting and visual elements that may complicate or hinder functional vision and may make life even more difficult for people with visual defects. These barriers appear as a consequence of certain negative effects caused by the poor desig
Psychol. Neurosci.. Publicado em: 2013
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5. A scalable multi-projector system. / Um sistema de multiprojeção escalável.
Multi-projector systems offer both higher resolution and brightness by using a cluster of projectors, providing better visual quality when compared to traditional systems using a single high performance projector. When we consider the high cost associated with high-end projectors, the use of multiple low cost projectors can reduce considerably the cost of su
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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6. Want to be a real hero?: uma análise sistêmico-funcional de anúncios em revistas em quadrinhos de super-heróis
Although North American super-heroes such as Spider-Man and Captain America are originally associated with comic books, it has been very common to see them in other mass media, such as films, video games, cartoons and advertising. With regard to advertisements, which are closely related to a society in which consuming has been defining the human behaviour, t
Publicado em: 2011
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7. Image matching and classification for UAV navigation.
Unmanned aerial vehicles, known as UAVs, have evolved over the past two decades to sophisticated aircraft robots able to carry out surveillance, recognition, remote sensing and even attack missions. But there are not many alternatives of autonomous navigation systems for most of these aircraft which still require human intervention to navigate. Devices such
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/11/2010
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8. DinÃmica Geoambiental do Sistema HÃdrico MaceiÃ/Papicu / Dynamic Geoenvironmental System Hydride Maceià / Papicu
This research aims to analyse the geo-environmental features of the MaceiÃ/ Papicu Hydrical System relating the dynamic in the natural landscape to the human aspects. The survey is based on the process of degradation from occupation considering the changes and their consequences to the environment. By means of the visual interpretation of the AUMEF 1978 air
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 07/07/2010
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9. Aplicação de modelos de Markov ocultos na obtenção de taxas de mortalidade das larvas do mosquito da Dengue
In order to prevent the proliferation of Dengue transmitter - scientifically named as Aedes ae- gypti - and therefore decrease human contamination by such insect, many larvaecides have been developed recently. Researchers from Dom Bosco Catholic University evaluate the efectiveness of vegetal-derived substances capable to combat such animal larvae. Death rat
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/02/2010
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10. Image matching and classification for UAV navigation.
Unmanned aerial vehicles, known as UAVs, have evolved over the past two decades to sophisticated aircraft robots able to carry out surveillance, recognition, remote sensing and even attack missions. But there are not many alternatives of autonomous navigation systems for most of these aircraft which still require human intervention to navigate. Devices such
Publicado em: 2010
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11. Estudo da causa de falhas dos aços inoxidáveis austeníticos utilizados em implantes ortopédicos
Given the variety of metallic materials used in orthopedic implants, the austenitic stainless steel type 316L and F138 have been widely used in Brazil as biocompatible material. Used by the public health, mainly due to it is low cost of manufacture compared to other materials, and because of the good combination of properties of which can be highlighted: The
Publicado em: 2010
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12. NLOOK: a computational attention model for robot vision
The computational models of visual attention, originally proposed as cognitive models of human attention, nowadays are being used as front-ends to some robotic vision systems, like automatic object recognition and landmark detection. However, these kinds of applications have different requirements from those originally proposed. More specifically, a robotic
Journal of the Brazilian Computer Society. Publicado em: 2009-09