Papers about Virtual reality

Embodied agents are a powerful paradigm for current and future multimodal interfaces yet require high effort and expertise for their creation, assembly, and animation control. Therefore, open animation engines and high-level control languages are required to make embodied agents accessible to researchers and developers. We present EMBR, a new real-time character animation engine that offers a high degree of animation control via the EMBRScript language. We argue that a new layer of control, the animation... Read more

The incorporation of games and virtual worlds into the workplace is happening more and more often. One analyst predicts that 80 percent of information workers will have an avatar at home or work by 2011. Why would a company ask its employees to create avatars for themselves? In this paper, the authors explain why avatars and the virtual environments they inhabit are so important to the future of work and demonstrate how engaging employees through... Read more

This paper presents the process of creation of virtual agents used in a virtual reality performance. The performance aimed to investigate how drama and performance could inform the creation of virtual agents and also how virtual reality could raise questions for drama and performance. The virtual agents were based on the performance of 2 actors. This paper describes the process of preparing the actors, capturing their performances and transferring them to the virtual agents. A... Read more

Researchers demand much from their embodied conversational agents (ECAs), requiring them to be both life-like, as well as responsive to events in an interactive setting. We find that a flexible combination of animation approaches may be needed to satisfy these needs. In this paper we present SmartBody, an open source modular framework for animating ECAs in real time, based on the notion of hierarchically connected animation controllers. Controllers in SmartBody can employ arbitrary animation algorithms... Read more

Virtual humans offer an exciting and powerful potential for rich interactive experiences. Fully embodied virtual humans are growing in capability, ease, and utility. As a result, they present an opportunity for expanding research into burgeoning virtual patient medical applications. In this paper we consider the ways in which one may go about building and applying virtual human technology to the virtual patient domain. Specifically we aim to show that virtual human technology may be used... Read more

During the last decade research groups as well as a number of commercial software developers have started to deploy embodied conversational characters in the user interface especially in those application areas where a close emulation of multimodal human-human communication is needed. Incarnations of such characters differ widely in type and amount of embodiment - starting from simplistic cartoon-style 2D representations of faces, fully embodied virtual humans in 3D virtual worlds to physically embodied androids co-habiting... Read more

At most institutions, medical students learn communication skills through the use of standardized patients (SP’s). Virtual patients (VP’s) may offer several advantages over SP’s, but little data exists regarding the use of VP’s in teaching communication skills. Therefore, we report our initial efforts to create an interactive virtual clinical scenario of a patient with acute abdominal pain to teach medical students history-taking and communication skills. Read more

It has become increasingly common for websites and computer media to provide computer generated visual images, called avatars, to represent users and bots during online interactions. In this study "The Influence of the Avatar on Online Perceptions of Anthropomorphism, Androgyny, Credibility, Homophily, and Attraction ", participants (N=255) evaluated a series of avatars in a static context in terms of their androgyny, anthropomorphism, credibility, homophily, attraction, and the likelihood they would choose them during an interaction.... Read more

In my research, I evolve intelligent locomotive strategies in a population of embodied virtual agents. The virtual environment utilizes a physics engine to model real world dynamics. Previous work in this field include the virtual creatures evolved by Karl Sims (1994). This brief paper provides an overview of the results obtained during the research phase of my thesis. Read more

We describe the Virtual Standardized Patient (VSP) application, having a computerized virtual person who interacts with medical practitioners in much the same way as actors hired to teach and evaluate patient assessment, diagnosis, and interviewing skills. The VSP integrates technologies from two successful research projects conducted at Research Triangle Institute. AVATALK provides natural language processing, emotion and behavior modeling, and composite facial expression and lip-shape modeling for a natural patient-practitioner dialog. Trauma Patient Simulator provides... Read more