The partial-occlusion effect: utilizing semitransparency in 3D human-computer interaction
ACM Transactions on Computer-Human Interaction (TOCHI)
Proceedings of the 1997 symposium on Interactive 3D graphics
Image plane interaction techniques in 3D immersive environments
Proceedings of the 1997 symposium on Interactive 3D graphics
Moving objects in space: exploiting proprioception in virtual-environment interaction
Proceedings of the 24th annual conference on Computer graphics and interactive techniques
Usability analysis of 3D rotation techniques
Proceedings of the 10th annual ACM symposium on User interface software and technology
The cubic mouse: a new device for three-dimensional input
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Non-isomorphic 3D rotational techniques
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
An interactive toolkit library for 3D applications: it3d
EGVE '02 Proceedings of the workshop on Virtual environments 2002
Virtual Environment Interaction Techniques
Virtual Environment Interaction Techniques
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
PRISM interaction for enhancing control in immersive virtual environments
ACM Transactions on Computer-Human Interaction (TOCHI)
ISVC '08 Proceedings of the 4th International Symposium on Advances in Visual Computing
Enhanced hand manipulation for efficient and precise positioning and release
EGVE'05 Proceedings of the 11th Eurographics conference on Virtual Environments
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A rotation adjustment method for precisely and efficiently manipulating a virtual 3D object by hand in an immersive virtual environment is proposed. A relative direction between both hands adjusts the rotation of the virtual object. This adjustment method also uses spherical linear interpolation based on quaternion algebra to scale down rotations, making small rotation adjustment easier. The scaled adjustment enables a user to precisely manipulate the virtual object. Activation of the rotation adjustment is controlled by the distance between both hands or by the distance between the thumb and forefinger. This rotation adjustment method was implemented as well as the translational position, viewpoint, and release adjustment methods. Combinations of these adjustment and control methods were evaluated in an experiment. The experimental results suggest that the rotation adjustment method helps a user who cannot precisely control rotation by his/her hand pinching a virtual object.