Head-mounted display versus desktop for 3D navigation in virtual reality: a user study

Santos, Beatriz Sousa; Dias, Paulo; Pimentel, Angela; Baggerman, J.W.; Ferreira, Carlos; Silva, Samuel; Madeira, Joaquim

doi:10.1007/s11042-008-0223-2

Cited by 190 publications

(69 citation statements)

References 32 publications

(35 reference statements)

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“…As virtual reality (VR) devices have become increasingly less expensive, issues related with the use of virtual environments (VE) within different applications and the inclusion of multimodality, user's stimulation through different sensory channels, have become more common in various research areas such as human-computer interaction and experimental psychology [38]. The inclusion of these devices within a high-consumer computational application, such as one based on a realistic 3D environment, yields an increment of computational cost due to the addition of concurrently running operations.…”

Section: Introductionmentioning

confidence: 99%

The role of mismatches in the sensory feedback provided to indicate selection within a virtual environment

Viciana-Abad

Reyes‐Lecuona

Poyade

et al. 2010

Multimed Tools Appl

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It is generally understood that virtual reality simulations have a high computational cost. Hence, they rarely can reduce completely all the incoherence within the cross-modal sensory outputs provided. The main research approaches to date have consisted in technically reducing possible mismatches, however minimal research has been conducted so as to analyse their influence on human capabilities. Thus, the objective of this study is to provide further insights to the designers of virtual reality about the negative influence of simulation lags and interesting design implications. To clearly show this, we have investigated the importance of coherent sensory feedback by incorporating time delays and spatial misalignments in the feedback provided by the simulation as a response to participant´s actions to mimic computationally expensive environments. We have also evaluated these misalignments considering two typical interaction setups. In particular, the sensory mismatches influence has been assessed in human factors, such as the sense of presence, task performance and delay perception. Our experimental results indicate that the closer the interaction conditions are to real configurations the higher the sensory requirements are regarding accuracy. The implications of this study offer the designer guidelines to prioritise the reduction of those mismatches in the sensory cues provided depending on the simulations goals.

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Section: Introductionmentioning

confidence: 99%

The role of mismatches in the sensory feedback provided to indicate selection within a virtual environment

Viciana-Abad

Reyes‐Lecuona

Poyade

et al. 2010

Multimed Tools Appl

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“…By contrast, augmented environments can be displayed and navigated through desktop interfaces. Both approaches have been shown to have advantages and disadvantages [14]. A popular intermediate solution between dedicated helmets and desktop navigation is represented by adopting portable devices such as mobile phones or tablet [12].…”

Section: Introductionmentioning

confidence: 99%

A Practical Setup for Projection-Based Augmented Maps

Bergamasco

Albarelli

Torsello

2014

Advanced Research and Trends in New Technologies, Software, Human-Computer Interaction, and Communicability

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Abstract. Projected Augmented Reality is a human-computer interaction scenario where synthetic data, rather than being rendered on a display, are directly projected on the real world. Differently from screen-based approaches, that only require to know the pose of the camera with respect to the world, this setup poses the additional hurdle of knowing the relative pose between capturing and projecting devices. In this paper we propose a thorough solution that addresses both camera and projector calibration using a simple fiducial marker design. Specifically, we introduce a novel Augmented Maps setup where the user can explore geographically located information by moving a physical inspection tool over a printed map. Since such tool presents both a projection surface and a 3D-localizable marker, it can be used to display suitable information about the area that it covers. The proposed setup has been evaluated in terms of accuracy of the calibration and of ease of use declared by the users.

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“…Atualmente, diversas iniciativas buscam a associação dessas abordagens para se obter maior precisão das informações médicas manipuladas (Liu e Uang, 2007;Rönkkö et al, 2006;Wilson e D'cruz, 2006). Mais especificamente, a demanda da área médica pela inovação do ensino é evidenciada pelo crescente interesse por Sistemas Tutores Inteligentes (STI) (Bittencourt, 2006;Brasil, 2008) voltados a diversas áreas da saúde, tais como anatomia, fisiologia, patologia e simulação de procedimentos cirúrgicos, principalmente o uso de interfaces hápticas, como os robôs phantoms (Faeth et al, 2008;Melo, 2007;Santos et al, 2009). A anatomia humana é uma das disciplinas básicas no ensino das ciências da saúde, sendo frequente a necessidade de consulta a livros-texto, a atlas de anatomia e mesmo a manipulação de cadáveres.…”

Section: Introductionunclassified

Integração da interface phantom ao sistema tutor inteligente para o ambiente de simulação médica

Melo¹,

Brasil²,

Panerai³

et al. 2011

RBEB

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Resumo O presente trabalho aborda e analisa o uso da Realidade Virtual (RV) em Sistemas Tutores Inteligentes (STI), buscando evidenciar a cooperação entre as duas áreas. Neste sentido, as teorias de Inteligência Artificial (IA) contribuíram para a estruturação de ambientes interativos de ensino com as melhores práticas de STI e RV, entre elas: facilidade de acesso, individualização do ensino, conteúdo lapidado, modelado e selecionado, um ambiente imersivo, interativo, intuitivo, destacando a integração do robô Phantom ao ambiente 3D e o seu relacionamento com a ontologia do projeto. Um estudo de caso foi realizado na área de anatomia ósseo-craniana para cursos de graduação na área da saúde. O processo de validação do protótipo e da arquitetura proposta teve apoio de professores e um grupo de 120 estudantes da área da saúde da UCB e da UnB. Como os cursos eram de características distintas, dividiu-se a validação em dois grupos com propósitos qualificados. O grupo A ficou responsável pela validação da arquitetura/tecnologia formado pelos estudantes de medicina do 1° semestre da disciplina de anatomia de ambas as instituições. O grupo B foi utilizado para a validação do conceito/conteúdo e formado por estudantes de enfermagem e biomedicina também do 1° semestre da disciplina de anatomia, sendo que esses estavam sob a responsabilidade do mesmo professor e tiveram a mesma forma de avaliação. Os estudantes de biomedicina tiveram acesso ao sistema, enquanto que os de enfermagem tiveram apenas o ensino convencional, sem acesso ao ASM. O objetivo foi verificar se a utilização do ASM como foi implementado contribuiu para o ensino da anatomia humana. O processo de aprendizado foi alocado no trabalho como uma possibilidade de expansão da arquitetura e evolução desse trabalho, acrescentando uma rede neural artificial entre a interação do estudante e o tipo de conteúdo a ser solicitado da ontologia. Portanto, através de um questionário on-line realizado com o apoio de um especialista da área de saúde, o ASM teve resultados satisfatórios.Palavras-chave Ontologia, Sistema tutor inteligente, Interfaces hápticas, Realidade virtual. Integration of the phantom interface on intelligent tutorial system for the medical simulation environment Abstract The present study describes an analysis of the use of Virtual Reality (VR) in Intelligent Tutorial Systems (ITS), aiming to show the cooperation between the two areas. Consequently, Artificial Intelligence (AI) theories contributed to the structuring of interactive teaching environments with the best ITS and VR practices, among

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Head-mounted display versus desktop for 3D navigation in virtual reality: a user study

Cited by 190 publications

References 32 publications

The role of mismatches in the sensory feedback provided to indicate selection within a virtual environment

The role of mismatches in the sensory feedback provided to indicate selection within a virtual environment

A Practical Setup for Projection-Based Augmented Maps

Integração da interface phantom ao sistema tutor inteligente para o ambiente de simulação médica

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