Dissertação de Mestrado de Vladimir Soares da Fontoura

Aluno: Vladimir Soares da Fontoura
Orientador: Prof. Dr. Anderson Maciel

Título:  Characterizing Visual Acuity in the use of Head Mounted Displays
Linha de Pesquisa: Interação Humano-Computador, Realidade Virtual e Aumentada

Data:  20/01/2021
Horário: 10h

Esta banca ocorrerá excepcionalmente de forma totalmente remota. Interessados em assistir a defesa poderão acessar a sala virtual através do link: https://videoconf-colibri.zoom.us/j/88670359120?pwd=VWF2bWFPanJqZlFXZXpEVFVMcDhEdz09 Password: 197873

Banca Examinadora:
– Profa. Dra. Fatima de Lourdes dos Santos Nunes Marques (USP)
– Profa. Dra. Luciana Porcher Nedel (UFRGS)
– Prof. Dr. Manuel Menezes de Oliveira Neto (UFRGS)

Presidente da Banca: Prof. Dr. Anderson Maciel

Abstract: In the real world, having a normal vision is essential to perform highly in most tasks. There, ophthalmology has several tools to assess and correct a person’s vision. In VR, when wearing an HMD, even a user with normal vision is challenged by additional hurdles that affect the virtual environment’s perceptual acuity, negatively impacting their performance in the application task. Display resolution, but also soiled lenses and bad vergence adjustment are examples of possible issues. To better understand and tackle this problem, we provide a study on assessing visual acuity in a VR setup. We conducted an experimental evaluation with users and found out, among other results, that visual acuity in VR is significantly and considerably lower than in real environments. Besides, we found several correlations of the measured acuity and task performance with difficulty adjusting the HMD and use of prescription glasses.

Keywords: Perception in VR. Head-mounted Display. Virtual Reality. Visual Acuity. Snellen.