scholarly journals 3D INTERACTION ASSISTANCE THROUGH CONTEXT-AWARENESS - A Semantic Reasoning Engine for Classic Virtual Environment

2012 ◽  
Keyword(s):  
Virtual Environment ◽  
Context Awareness ◽  
3D Interaction ◽  
Semantic Reasoning ◽  
Reasoning Engine

scholarly journals An accelerometer-based gesture recognition algorithm and its application for 3D interaction

2010 ◽  
Vol 7 (1) ◽  
pp. 177-188 ◽  
Author(s):  
Jianfeng Liu ◽  
Zhigeng Pan ◽  
Li Xiangcheng
Keyword(s):  
Human Computer Interaction ◽  
Markov Model ◽  
Virtual Environment ◽  
Gesture Recognition ◽  
Hidden Markov ◽  
Recognition Rate ◽  
Recognition Algorithm ◽  
3D Interaction ◽  
Semantic Map ◽  
Data Output

This paper proposes an accelerometer-based gesture recognition algorithm. As a pre-process procedure, raw data output by accelerometer should be quantized, and then use discrete Hidden Markov Model to train and recognize them. Based upon this recognition algorithm, we treat gesture as a method of human-computer interaction and use it in 3D interaction subsystem in VR system named VDOM by following steps: establish Gesture-Semantic Map, train standard gestures, finally do recognition. Experimental results show that the system can recognize input gestures quickly with a reliable recognition rate. The users are able to perform most of the typical interaction tasks in virtual environment by this accelerometer-based device.

scholarly journals Domain-Specific Design of 3D Interaction Techniques: An Approach for Designing Useful Virtual Environment Applications

2009 ◽  
Vol 18 (5) ◽  
pp. 370-386 ◽  
Author(s):  
Jian Chen ◽  
Doug A Bowman
Keyword(s):  
Virtual Environment ◽  
Interaction Design ◽  
Domain Knowledge ◽  
Structural Engineering ◽  
Specific Interaction ◽  
Engineering Application ◽  
Interaction Techniques ◽  
3D Interaction ◽  
Specific Design ◽  
Domain Specific

Few production virtual environment (VE) applications involve complex three-dimensional (3D) interaction. Our long-term collaboration with architects and engineers in designing 3D user interfaces (3D UIs) has revealed some of the causes: existing interaction tasks and/or techniques are either too generic when isolated from the application context, or too specific to be reusable. We propose a new design approach called domain-specific design (DSD) that sits between the generic and specific design approaches, with an emphasis on using domain knowledge in 3D interaction techniques. We also describe an interaction design framework encompassing generic, domain-specific, and application-specific interaction tasks and techniques. This framework can be used by designers to think of ways to produce domain-specific interaction techniques. We present a particular DSD method, and demonstrate its use for the design of cloning techniques in a structural engineering application. Results from empirical studies demonstrate that interaction techniques produced with domain knowledge in mind outperformed other techniques by improving task efficiency, work flow, and usefulness of the 3D UI.

scholarly journals Using 3D Sound for Providing 3D Interaction in Virtual Environment

2010 ◽  
Author(s):  
Vladimir Ortega-Gonza´lez ◽  
Samir Garbaya ◽  
Fre´de´ric Merienne
Keyword(s):  
Virtual Environment ◽  
User Performance ◽  
3D Interaction ◽  
Technical Problems ◽  
Spatial Cueing ◽  
3D Sound ◽  
Research Perspectives

In this paper we describe a proposal based on the use of 3D sound metaphors for providing precise spatial cueing in virtual environment. A 3D sound metaphor is a combination of the audio spatialization and audio cueing techniques. The 3D sound metaphors are supposed to improve the user performance and perception. The interest of this kind of stimulation mechanism is that it could allow providing efficient 3D interaction for interactive tasks such as selection, manipulation and navigation among others. We describe the main related concepts, the most relevant related work, the current theoretical and technical problems, the description of our approach, our scientific objectives, our methodology and our research perspectives.

scholarly journals How 3D Interaction Metaphors Affect User Experience in Collaborative Virtual Environment

2011 ◽  
Vol 2011 ◽  
pp. 1-11 ◽  
Author(s):  
Hamid Hrimech ◽  
Leila Alem ◽  
Frederic Merienne
Keyword(s):  
Experimental Study ◽  
Virtual Environment ◽  
User Experience ◽  
Ray Casting ◽  
Collaborative Effort ◽  
3D Interaction ◽  
3D Navigation ◽  
Collaborative Virtual Environment ◽  
Significant Difference ◽  
The Impact

In this paper we presents the results of our experimental study which aims to understand the impact of three interaction 3D metaphors (ray casting, GoGo, and virtual hand) on the user experience in a semi-immersive collaborative virtual environment (the Braccetto System). For each session, participants are grouped in twos to reconstruct a puzzle by an assemblage of cubes. The puzzle to reconstruct corresponds to a gradient of colors. We found that there is a significant difference in the user experience by changing the interaction metaphor on the copresence, awareness, involvement, collaborative effort, satisfaction usability, and preference. These findings provide a basis for designing 3D navigation techniques in a CVE.

Sign in / Sign up

Export Citation Format

Share Document