Augmented Reality for Urban Simulation Visualization

Visualizations of large simulations are not only computationally intensive but also difficult for the viewer to interpret, due to the huge amount of data to be processed. The case of urban wind flow simulations proves the benefits of mobile Augmented Reality visualizations, both in terms of selection of data relevant to the user and facilitated and comprehensible access to simulation results

Information Olfactation: Theory, Design, and Evaluation

Olfactory feedback for analytical tasks is a virtually unexplored area in spite of the advantages it offers for information recall, feature identification, and location detection. Here we introduce the concept of ‘Information Olfactation’ as the fragrant sibling of information visualization, and discuss how scent can be used to convey data. Building on a review of the human olfactory system and mirroring common visualization practice, we propose olfactory marks, the substrate in which they exist, and their olfactory channels that are available to designers. To exemplify this idea, we present ‘viScent(1.0)’: a six-scent stereo olfactory display capable of conveying olfactory glyphs of varying temperature and direction, as well as a corresponding software system that integrates the display with a traditional visualization display. We also conduct a comprehensive perceptual experiment on Information Olfactation: the use of olfactory marks and channels to convey data. More specifically, following the example from graphical perception studies, we design an experiment that studies the perceptual accuracy of four ``olfactory channels''---scent type, scent intensity, airflow, and temperature---for conveying three different types of data---nominal, ordinal, and quantitative. We also present details of an advanced 24-scent olfactory display: ‘viScent(2.0)’ and its software framework that we designed in order to run this experiment. Our results yield a ranking of olfactory channels for each data type that follows similar principles as rankings for visual channels, such as those derived by Mackinlay, Cleveland & McGill, and Bertin

Real-time visual displays for voice tuition.

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An Investigation of Olfactory Display Technology for the enhancement of Presence within Virtual Reality Experiences

This thesis examines the impact the inclusion of olfactory stimulus has on virtual reality (VR) for the enhancement of presence. To achieve this, a comprehensive review of past literature was undertaken. This review examines several relevant topics including the physiological process of perceiving scent, the concept of presence, and a discussion of past attempts to integrate olfactory stimulus with VR and visual media. This culminates in the presentation of a series of design heuristics for designing VR experiences that might implement olfaction.These heuristics provide the foundation for a systematic review into olfactory display technology. The review included 34 studies and examined the technology used as well as the impact on the sense of presence. The investigation has shown that many devices are custom-made by researchers to fit the requirements of their studies. A major knowledge gap that was revealed from this review was the distinct lack of a detailed method in which the olfactory display device might receive its queue to release scent stimulus electronically from interactions within the VR environment.A prototype olfactory display device is then presented. The proposed design drew on the most common methods found in the systematic review, with the aim of providing an accessible and low-cost method of creating an olfactory display device. The device was then evaluated against selected design heuristics to analyse functionality. It was also used to examine the impact that the inclusion of scent has on presence. This was explored through the use of items adapted from the Temple Presence Inventory (Lombard et al., 2009), a Think-Aloud protocol and series of open-ended questions. The device and its integration into the VR environment functioned as intended and appeared to afford a sense of presence in a small sample of participants. A discussion of the project successes, limitations and avenues for future research is then provided

Proceedings of the 7th international conference on disability, virtual reality and associated technologies, with ArtAbilitation (ICDVRAT 2008)

The proceedings of the conferenc

Proceedings of the 8th international conference on disability, virtual reality and associated technologies (ICDVRAT 2010)

The proceedings of the conferenc

Models and Analysis of Vocal Emissions for Biomedical Applications

The MAVEBA Workshop proceedings, held on a biannual basis, collect the scientific papers presented both as oral and poster contributions, during the conference. The main subjects are: development of theoretical and mechanical models as an aid to the study of main phonatory dysfunctions, as well as the biomedical engineering methods for the analysis of voice signals and images, as a support to clinical diagnosis and classification of vocal pathologies

Analysis and correction of the helium speech effect by autoregressive signal processing

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