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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Arquitetura para aplica??es interativas imersivas de televis?o digital

Azevedo, Samuel Oliveira de 24 September 2012 (has links)
Made available in DSpace on 2014-12-17T14:55:18Z (GMT). No. of bitstreams: 1 SamuelOA_TESE.pdf: 3965946 bytes, checksum: 6a8d9b9ed216b68cf3f32ad57d32058f (MD5) Previous issue date: 2012-09-24 / Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico / In this work, we propose a new approach to Interactive Digital Television (IDTV), aimed to explore the concepts of immersivity. Several architectures have been proposed to IDTV, but they did not explore coherently questions related to immersion. The goal of this thesis consists in defining formally what is immersion and interactivity for digital TV and how they may be used to improve user experience in this new televisive model. The approach raises questions such as the appropriate choice of equipment to assist in the sense of immersion, which forms of interaction between users can be exploited in the interaction-immersion context, if the environment where an immersive and interactive application is used can influence the user experience, and which new forms of interactivity between users, and interactivity among users and interactive applications can be explored with the use of immersion. As one of the goals of this proposal, we point out new solutions to these issues that require further studies. We intend to formalize the concepts that embrace interactivity in the brazilian system of digital TV. In an initial study, this definition is organized into categories or levels of interactivity. From this point are made analisis and specifications to achieve immersion using DTV. We pretend to make some case studies of immersive interactive applications for digital television in order to validate the proposed architecture. We also approach the use of remote devices anda proposal of middleware architecture that allows its use in conjunction with immersive interactive applications / Neste trabalho, propomos uma nova abordagem para a Televis?o Digital Interativa (TVDI), visando explorar os conceitos de imersividade. V?rias arquiteturas j? foram propostas para a TVDI, mas n?o exploram coerentemente quesitos relacionados ? imers?o. O objetivo desta tese consiste em definir formalmente o que s?o a imers?o e a interatividade para a TV digital e em como elas podem ser usadas para melhorar a experi?ncia do usu?rio deste novo modelo televisivo. A abordagem do problema levanta quest?es como a escolha apropriada de equipamentos para ajudar na sensa??o de imers?o; que formas de intera??o entre os usu?rios podem ser exploradas no contexto intera??o-imers?o; se o ambiente em que uma aplica??o interativa imersiva ? utilizada influencia na experi?ncia de imers?o; e que novas formas de interatividade dos usu?rios da TVDI entre si, e entre os usu?rios e as aplica??es interativas, podem ser exploradas com o uso da imers?o. Como um dos objetivos desta proposta, apontamos solu??es novas para estas quest?es que carecem de mais estudos. Ensejamos formalizar os conceitos que abarcam a interatividade no Sistema Brasileiro de televis?o Digital. Num estudo inicial realizado, esta defini??o ? organizada em categorias ou n?veis de interatividade. A partir deste ponto, s?o feitas an?lises e especifica??es para atingir a imers?o usando a TVDI. Visionamos alguns estudos de caso de aplica??es interativas imersivas para televis?o digital, visando validar a arquitetura proposta. Tamb?m, ? abordado o uso de dispositivos remotos, e a proposta b?sica de uma arquitetura de middleware que permita sua utiliza??o em conjunto com aplica??es interativas imersivas

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