The integration of sensors in smartphones and tablets is enabling the emergence of augmented reality (AR) applications for these devices. However, the image captured and the superimposed information is limited to the camera's field-of-view and, in the visualization of points of interest (PoI), symbol overlapping may occur because there is no control over their number and location. Thus, we developed an Android prototype application that aims to: provide better environment awareness using clues to off-screen objects and a 2D map with a radar view, reduce symbol overlapping via aggregation visualizations, and guide the attention of the user by featuring different levels of symbol relevance according to user preferences. An empirical study with search tasks revealed participants preferred having all techniques active instead of none or only some of them. This suggests there is value in combining visualization techniques to address mobile AR challenges, and, possibly, that there is still space to integrate more techniques without overloading the users.

Augmented and Virtual Reality techniques are becoming more widespread and Medicine is one of the fields which can benefit from their use. In this paper we describe a smartphone application that applies these two techniques to provide visualizations of a patient's brain. This application was designed with the goal of guiding a physician in a medical procedure called Transcranial Magnetic Stimulation (TMS), however it can be adapted and extended to other uses. The application was submitted to user tests involving two experts in TMS and researchers in Biomedical Engineering, the results were positive and provided useful feedback that will be considered when further developing the application.

This paper presents a Serious Game with the main purpose of inducing attitude changes as a way to prevent bullying. The target audience are young people between 10 and 12 years old. The rationale for prevention is: first, to help victims of these aggressive episodes to improve behavioral competence to avoid or to deal with future real bullying situations; and, second, to promote in the bystanders empathy towards the victims.

We present an AR application for visualizing solar radiation data on facades of buildings, generated from LiDAR data and climatic observations. Data can be visualized using colored surfaces and glyphs. A user study revealed the proposed AR visualizations were easy to use, which can lead to leverage the potential benefits of AR visualizations: to detect errors in the simulated data, to give support to the installation of photovoltaic equipment and to raise public awareness of the use of facades for power production.

We describe a platform to build virtual environments inhabited by autonomous virtual humans. We propose an architecture comprising several software components assembled to define a platform. The architecture includes a 3D-modelling software, a rendering engine, a library for simulating rigid body dynamics and an agent development framework.

IVPrototype is an information visualization prototype for the visualization of both geometrical and non-geometrical data. Our goal is to provide a generic system that automatically generates data visualization and dynamically adapts the interface according to the data in order to control the amount of information displayed. The information is organized in one or several information groups, which aggregate semantically related information. Icons and coloured surfaces are the visual mappings provided. Other features of this prototype are: a data independent architecture; several filtering mechanisms; use of degree of interest functions; automatic selection of icons based on scale factor and semantic criteria.