Ontological Context-Awareness for Adaptive Augmented Reality

This paper presents a proposal for supporting daily user needs by simple interactions with the environment through an augmented-reality perspective and applying proactive adaptation through knowledge representation using ontologies. The proposed architecture (i-ARA) makes use of principles of Semantic Web that endow context-awareness and user personalization. In addition, this kind of services allows the supervision and management of what is happening at the environment and, in consequence, to improve information offered to users. The architecture has been used to implement applications using iPhone technology and applied to illustrative scenarios.This paper presents a proposal for supporting daily user needs by simple interactions with the environment through an augmented-reality perspective and applying proactive adaptation through knowledge representation using ontologies. The proposed architecture (i-ARA) makes use of principles of Semantic Web that endow context-awareness and user personalization. In addition, this kind of services allows the supervision and management of what is happening at the environment and, in consequence, to improve information offered to users. The architecture has been used to implement applications using iPhone technology and applied to illustrative scenarios

Achieving Adaptive Augmented Reality through Ontological Context-Awareness applied to AAL Scenarios

This paper presents a proposal for supporting daily user needs by simple interactions with the environment through an augmented-reality perspective that applies proactive adaptation through knowledge representation using ontologies. The proposed architecture (i-ARA) uses principles of the Semantic Web that endow context-awareness and user personalization. In addition, these types of services allow the supervision and management of what is happening in the environment and, consequently, improve the information offered to users. The architecture has been used to implement applications using iPhone technology and has been applied to illustrative scenarios, including Ambient Assisted Living.This paper presents a proposal for supporting daily user needs by simple interactions with the environment through an augmented-reality perspective that applies proactive adaptation through knowledge representation using ontologies. The proposed architecture (i-ARA) uses principles of the Semantic Web that endow context-awareness and user personalization. In addition, these types of services allow the supervision and management of what is happening in the environment and, consequently, improve the information offered to users. The architecture has been used to implement applications using iPhone technology and has been applied to illustrative scenarios, including Ambient Assisted Living

Improvised interfaces for real-time musical applications

International audienceComputers offer a wealth of promises for real-time musical control. One of them is to enable musicians to change the structure of their instruments in the same time they are playing them, allowing them to adapt their tools to their wills and needs. Few interaction styles provide enough freedom to achieve this. Improvised interfaces are tangible interfaces made out of found objects and tailored by their users. We propose to take advantage of these improvised interfaces to turn the surrounding physical environment into a dynamic musical instrument with tremendous possibilities. Methods dealing with design issues are presented and an implementation of this novel approach is described

Entre o corpo vivo e o corpo vivido do sujeito jogador: uma ontogênese estética e estesiológica nos jogos eletrônicos esportivos

Entendendo que o corpo conhece a si mesmo por meio da expressão do corpo vivo no corpo vivido, com base na Emersiologia, esta pesquisa objetivou conhecer os processos pelos quais as tecnologias maquínicas e informacionais, constituídas na forma de jogos eletrônicos, atuam na cultura corporal de movimento. Realizou-se pesquisa qualitativa descritiva de campo, por meio de entrevistas semi-estruturadas com 50 atores sociais, na faixa etária da juventude, da rede pública de Ensino Médio e Superior da Universidade de Pernambuco - UPE, Recife-PE. As informações foram tratadas por meio da Análise de Conteúdo. Os dados possibilitaram a criação de quadro categórico analítico, que apresentou como principal categoria a “aprendizagem corporal/esportiva por imitação”. Conclui-se que, no processo de virtualização corporal, o corpo continua sendo o centro do processo perceptivo, no qual artes imersivas fazem despontar a essência do "iceberg" corporal

Scene creation and exploration in outdoor augmented reality

This thesis investigates Outdoor Augmented Reality (AR) especially for scene creation and exploration aspects.We decompose a scene into several components: a) Device, b) Target Object(s), c) Task, and discuss their interrelations. Based on those relations we outline use-cases and workflows. The main contribution of this thesis is providing AR oriented workflows for selected professional fields specifically for scene creation and exploration purposes, through case studies as well as analyzing the relations between AR scene components. Our contributions inlude, but not limited to: i) analysis of scene components and factoring inherintly available errors, to create a transitional hybrid tracking scheme for multiple targets, ii) a novel image-based approach that uses building block analogy for modelling and introduces volumetric and temporal labeling for annotations, iii) an evaluation of the state of the art X-Ray visualization methods as well as our proposed multi-view method. AR technology and capabilities tend to change rapidly, however we believe the relation between scene components and the practical advantages their analysis provide are valuable. Moreover, we have chosen case studies as diverse as possible in order to cover a wide range of professional field studies. We believe our research is extendible to a variety of field studies for disciplines including but not limited to: Archaeology, architecture, cultural heritage, tourism, stratigraphy, civil engineering, and urban maintenance

A NOVEL AUGMENTED REALITY BASED SYSTEM FOR PROVIDING MAINTENANCE ASSISTANCE

Ph.DDOCTOR OF PHILOSOPH