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Campbell, Abraham G.
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Campbell, Abraham G.
Official Name
Campbell, Abraham G.
Research Output
Now showing 1 - 6 of 6
- PublicationNeXus: Behavioural Realism in Mixed Reality Scenarios through Virtual Sensing(2005-10-17)
; ; ; This paper aims to demonstrate how behavioural realism can be achieved by situating intentional agents within an Augmented Reality (AR) framework. We contest that imbuing agents with the ability to virtually sense the world within which they are situated produces a heightened sense of behavioural realism. We introduce the reader to NeXuS, a framework for the development of AR applications that depends upon these concepts to create a rich interactive environment whereby traditional boundaries between the virtual and physical domain may be overcome.286 - PublicationNEXUS : Mixed Reality Experiments with Embodied Intentional Agents(2004-07)
; ; This paper seeks to erode the traditional boundaries that exist between the physical and the virtual world. It explores mixed reality experiences and the deployment of situated embodied agents that offer mediation in the control of, and interaction between, avatars. The NEXUS system is introduced which facilitates the construction and experimentation with mixed reality multi-character scenarios. The behaviour of such characters or avatars is governed by a BDI agent architecture that can effectively sense both the real and the virtual world overlay. Within this paper we describe the NEXUS infrastructure together with the technology set that envelops it. We outline the design and results from a series of mixed reality experiments that have been conducted using the NEXUS system.208 - PublicationNeXuS: delivering behavioural realism through intentional agentsThis paper explores the challenge of delivering Behavioural Realism to embedded avatars. An agent based approach is adopted and demonstrated within a Mixed Reality (MR) environment. The realism of an avatar is driven by the state of the intentional agent that underpins its behaviour. The traditional disconnect often found with avatars that exhibit shallow levels of behavioural realism is no longer evident.
Scopus© Citations 5 448 - PublicationFreeGaming : mobile, collaborative, adaptive and augmented ExerGamingAddressing the obesity epidemic that plagues many societies remains an outstanding public health issue. One innovative approach to addressing this problem is Exergaming. A combination of "Exercise" and "Gaming", the objective is to motivate people participate in exercise regimes, usually in their home environment. In this paper a more holistic interpretation of this exercise paradigm is proposed. Freegaming augments Exergaming in a number of key dimensions but especially through the promotion of games in outdoor mobile contexts and within a social environment. The design and implementation of a platform for Freegaming is described and illustrated through the description of a sample game.
1675Scopus© Citations 15 - PublicationImmersive human-robot interaction(ACM, 2012-03)
; ; ; Networked robotic applications enable robots to operate in distant, hazardous, or otherwise inaccessible environments, such as search and rescue, surveillance, and exploration applications. The most difficult challenge which persists for such systems is that of supporting effective human-robot interaction, as this usually demands managing dynamic views, changeable interaction modalities, and adaptive levels of robotic autonomy. In contrast of sophisticated screen-based graphical user interfaces (GUIs), the solution proposed herein is to enable more natural human-robot interaction modalities through a networked immersive user interface. This paper describes the creation of one such shared space where to test such an approach, with both simulated and real robots.624Scopus© Citations 8 - PublicationUsing an industry-ready AR HMD on a real maintenance task: AR benefits performance on certain task steps more than othersThis paper presents a novel evaluation of an industry-ready HMD for delivering AR work instructions in a real-life, industrial procedure for novice users. A user study was performed to examine the potential benefits and limitations of a dynamic 3D virtual model and AR text instructions, delivered through an optical see through HMD, for training users in a new industry procedure (i.e., Yaw Motor Servicing of a wind turbine). Measures of task accuracy and completion time were used to evaluate the performance of one group of mechanical engineering students performing this procedure for the first time guided by AR compared to a second group performing it using a tablet-delivered instruction manual. Results showed AR improved accuracy but not speed of task completion. AR significantly increased accuracy on one specific task-step in the procedure, namely measurement of a thin air gap (see figure 1, left panel), but also showed limitations with other task-steps not benefitting or even being slowed down by AR (see figure 1, right panel). Findings speak to the importance of incorporating an analysis at the level of individual task steps in order to fully evaluate AR work instructions.
768Scopus© Citations 22