Publicado em: 20/02/2014

Dissertação de Mestrado em Computação Gráfica, Processamento de Imagens e Interação

UNIVERSIDADE FEDERAL DO RIO GRANDE DO SUL
INSTITUTO DE INFORMÁTICA
PROGRAMA DE PÓS-GRADUAÇÃO EM COMPUTAÇÃO
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DEFESA DE DISSERTAÇÃO DE MESTRADO

Aluno: Victor Adriel de Jesus Oliveira
Orientador: Prof. Dr. Anderson Maciel

Título: Designing Tactile Vocabularies for Human-Computer Interaction
Linha de Pesquisa: Computação Gráfica, Processamento de Imagens e Interação

Data: 26/02/2014
Hora: 15h30min
Local: Prédio 43412 – Sala 215 (Vídeo Conferência), Instituto de Informática

Banca Examinadora:

Prof. Dr. Marco Antonio Alba Winckler (University Paul Sabatier) por vídeo conferência
Profa. Dra.  Carla Maria Dal Sasso Freitas (UFRGS)
Profa. Dra. Luciana Porcher Nedel (UFRGS)

Presidente da Banca: Prof. Dr. Anderson Maciel

Abstract:

This thesis presents a study about tactile languages in human-computer interaction and a novel approach for vibrotactile prefixation. We intended to analyse how the choices made during the design process of tactile vocabularies would affect the user performance on a interactive task. Therefore, we have designed and tested different sets of tactile signals for aid navigation in virtual environments. It leaded us to fashion the concept of Modifier Tactile Pattern for vibrotactile communication which was tested through user experiments. In the assessment of the modifier-based vocabularies we attempted to effects of multisensory stimulation, factors related to the processing of tactile sequences and masking caused by multiple stimuli delivered in a same time. Results show that those participants who used modifier-based vocabularies performed better the navigation task. That and others results related to perception, learning and interpretation of our tactile vocabularies show the validity of the use of modifiers on tactile languages. The statements made from this work will be useful for designing usable tactile interfaces that demand expressive vocabularies.

Keywords:  Haptic interaction, vibrotactile communication, virtual reality, navigation