Automatic adjustments for efficient and precise positioning and release of virtual objects
Proceedings of the 2006 ACM international conference on Virtual reality continuum and its applications
FOLLOW-ME: a new 3D interaction technique based on virtual guides and granularity of interaction
Proceedings of the 2006 ACM international conference on Virtual reality continuum and its applications
Virtual Environments: Anisomorphic ray-casting manipulation for interacting with 2D GUIs
Computers and Graphics
PRISM interaction for enhancing control in immersive virtual environments
ACM Transactions on Computer-Human Interaction (TOCHI)
Improving 3D Selection in VEs through Expanding Targets and Forced Disocclusion
SG '08 Proceedings of the 9th international symposium on Smart Graphics
Augmenting 3D interactions with haptic guide in a large scale virtual environment
VRCAI '08 Proceedings of The 7th ACM SIGGRAPH International Conference on Virtual-Reality Continuum and Its Applications in Industry
ISVC '08 Proceedings of the 4th International Symposium on Advances in Visual Computing
IEICE - Transactions on Information and Systems
Towards modeling human arm movement in a CVE
Proceedings of the First International Conference on Immersive Telecommunications
Proceedings of the 16th ACM Symposium on Virtual Reality Software and Technology
Building on realism and magic for designing 3D interaction techniques
IEEE Computer Graphics and Applications
Insights from dividing 3D goal-directed movements into meaningful phases
IEEE Computer Graphics and Applications
Dynamic decomposition and integration of degrees of freedom for 3-D positioning
Proceedings of the 17th ACM Symposium on Virtual Reality Software and Technology
Enhanced hand manipulation for efficient and precise positioning and release
EGVE'05 Proceedings of the 11th Eurographics conference on Virtual Environments
Friction surfaces: scaled ray-casting manipulation for interacting with 2D GUIs
EGVE'06 Proceedings of the 12th Eurographics conference on Virtual Environments
Hybrid interfaces in VEs: intent and interaction
EGVE'06 Proceedings of the 12th Eurographics conference on Virtual Environments
EGVE'07 Proceedings of the 13th Eurographics conference on Virtual Environments
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A significant benefit of an immersive virtual environment is that it provides users the ability to interact with objects in a very natural, direct way; often realized by using a tracked, hand-held wand or stylus to "grab" and position objects. In the absence of force feedback or props, it is difficult and frustrating for users to move their arms, hands, or fingers to precise positions in 3D space, and more difficult to hold them at a constant position, or to move them in a uniform direction over time. The imprecision of user interaction in virtual environments is a fundamental problem that limits the complexity of the environment the user can interact with directly. We present PRISM (Precise and Rapid Interaction through Scaled Manipulation), a novel interaction technique which acts on the userýs behavior in the environment to determine whether they have precise or imprecise goals in mind. When precision is desired, PRISM dynamically adjusts the "control/ display" ratio which determines the relationship between physical hand movements and the motion of the controlled virtual object, making it less sensitive to the userýs hand movement. In contrast to techniques like Go-Go, which scale up hand movement to allow "long distance" manipulation; PRISM scales the hand movement down to increase precision. We present the results of a user study which shows that PRISM significantly out-performs the more traditional direct manipulation approach.