Precise and Rapid Interaction through Scaled Manipulation in Immersive Virtual Environments

Frees, Scott; Kessler, G. Drew

doi:10.1109/vr.2005.60

Cited by 34 publications

(31 citation statements)

References 27 publications

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“…This concept has been applied to many different VE-related tasks including navigation [23], perception [24], selection [15] and manipulation [12,16]. Blanch et at.…”

Section: Previous Workmentioning

confidence: 99%

“…The PRISM (Precise and Rapid Interaction through Scaled Manipulation) [16] uses C-D adjustment to provide fast and accurate manipulation of 3D objects. PRISM uses the hand speed of the user to gradually switch between different modes by altering the C-D ratio.…”

Section: Previous Workmentioning

confidence: 99%

“…The C-D ratio often defines the distance that must cover the device in the physical world (dx) to move the cursor on the screen by a given distance (dX). The adaptation of the C-D ratio dx/dX has been successfully used in many 2D and 3D interaction techniques (see [16] for a review). However, these techniques have been designed for manipulating 3D objects and thus do not address the specific problems involved in 2D GUI manipulation.…”

Section: Introductionmentioning

confidence: 99%

“…When the user is pointing at a virtual window, we increase the CD-ratio between the user's hand and the ray used for selection, so that the ray rotates more slowly than the user's hand, thus reducing the effect of hand instability. Unlike other techniques designed for accurate 3D object manipulation which define the C-D ratio inversely proportional to the hand speed [16], we compute the C-D ratio by considering the size and position of the virtual window relative to the user's hand at the moment the scaled mode is activated. While the scaled mode is active, the C-D ratio remains constant.…”

Section: Introductionmentioning

confidence: 99%

“…The technique has its roots in ray-casting selection and C-D based techniques [16] but adopts a completely different approach for activation/deactivation of the scaled mode and for computing the C-D ratio. One of the advantages over approaches using dynamic adjustment of the C-D ratio is that the angular difference between the user's hand orientation and the selection ray orientation is bounded by a user-defined constant.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Anisomorphic ray-casting manipulation for interacting with 2D GUIs

Andújar

Argelaguet

2007

Computers & Graphics

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The accommodation of conventional 2D GUIs with Virtual Environments (VEs) can greatly enhance the possibilities of many VE applications. In this paper we present a variation of the well-known raycasting technique for fast and accurate selection of 2D widgets over a virtual window immersed into a 3D world. The main idea is to provide a new interaction mode where hand rotations are scaled down so that the ray is constrained to intersect the active virtual window. This is accomplished by changing the control-display ratio between the orientation of the user's hand and the ray used for selection. Our technique uses a curved representation of the ray providing visual feedback of the orientation of both the input device and the selection ray. We have implemented this technique and evaluated its effectiveness in terms of performance and user preference. Our experiments on a four-sided CAVE indicate that the proposed technique can increase the speed and accuracy of component selection in 2D GUIs immersed into 3D worlds.

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“…This concept has been applied to many different VE-related tasks including navigation [23], perception [24], selection [15] and manipulation [12,16]. Blanch et at.…”

Section: Previous Workmentioning

confidence: 99%

Section: Previous Workmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Anisomorphic ray-casting manipulation for interacting with 2D GUIs

Andújar

Argelaguet

2007

Computers & Graphics

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Evaluation of Distance-Aware Bimanual Manipulation Techniques for Large High-Resolution Displays

Lehmann

Staadt

2015

Human-Computer Interaction – INTERACT 2015

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A Hybrid 2D/3D User Interface for Radiological Diagnosis

et al. 2017

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This paper presents a novel 2D/3D desktop virtual reality hybrid user interface for radiology that focuses on improving 3D manipulation required in some diagnostic tasks. An evaluation of our system revealed that our hybrid interface is more efficient for novice users and more accurate for both novice and experienced users when compared to traditional 2D only interfaces. This is a significant finding because it indicates, as the techniques mature, that hybrid interfaces can provide significant benefit to image evaluation. Our hybrid system combines a zSpace stereoscopic display with 2D displays, and mouse and keyboard input. It allows the use of 2D and 3D components interchangeably, or simultaneously. The system was evaluated against a 2D only interface with a user study that involved performing a scoliosis diagnosis task. There were two user groups: medical students and radiology residents. We found improvements in completion time for medical students, and in accuracy for both groups. In particular, the accuracy of medical students improved to match that of the residents.

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Precise and Rapid Interaction through Scaled Manipulation in Immersive Virtual Environments

Cited by 34 publications

References 27 publications

Anisomorphic ray-casting manipulation for interacting with 2D GUIs

Anisomorphic ray-casting manipulation for interacting with 2D GUIs

Evaluation of Distance-Aware Bimanual Manipulation Techniques for Large High-Resolution Displays

A Hybrid 2D/3D User Interface for Radiological Diagnosis

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