PRISM interaction for enhancing control in immersive virtual environments

Frees, Scott; Kessler, G. Drew; Kay, Edwin J.

doi:10.1145/1229855.1229857

Cited by 134 publications

(83 citation statements)

References 48 publications

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“…For indirect input, there is no single scale that allows both fast cursor motions to reach distant targets, and precise motions for selecting them. One method for overcoming this problem lies in dynamic scaling of the input-display mapping, known as cursor acceleration [68]. However the correct tuning of this function is a complex problem [151].…”

Section: Hybrid Interaction Techniquesmentioning

confidence: 99%

The personal cockpit

Ens

Finnegan

Irani

2014

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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Section: Hybrid Interaction Techniquesmentioning

confidence: 99%

The personal cockpit

Ens

Finnegan

Irani

2014

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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“…As stated below, friction surfaces is similar to the PRISM [17] in concept. Both techniques adapt the C-D ratio to provide accurate manipulation of distant objects.…”

Section: Comparison With Previous Techniquesmentioning

confidence: 98%

“…Motion above the third speed constant is used only for offset recovery. The first version of PRISM operated only on translation [16] but it has been recently extended to 3D rotations [17]. The authors report significant user performance improvements when using ray casting with PRISM rotations.…”

Section: Previous Workmentioning

confidence: 99%

“…This consistency is particularly important when the input device's orientation is easily perceived by the user through proprioception (a common situation in devices typically used for pointing, such as the wand). Note that PRISM does not preserve nulling compliance and requires offset recovery techniques to reduce the accumulation of an offset value representing the angular difference between the hand and the ray being manipulated [17].…”

Section: Comparison With Previous Techniquesmentioning

confidence: 99%

“…• A comparison with isomorphic ray-casting and with other approaches modifying the C-D ratio, and particularly with [17].…”

Section: Introductionmentioning

confidence: 99%

See 2 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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Optimal close‐up views for precise 3D manipulation

Choi

Lee

et al. 2019

Computer Animation & Virtual

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Direct manipulation can be used as an intuitive interface for spatial interaction with multiple objects in virtual environments. However, users often have difficulties in precisely manipulating objects in the 3D space; this is mainly because the user is not provided with enough visual information to sufficiently recognize the spatial relationships among objects. We present a new method for improving the preciseness of object manipulation in the 3D space by providing the user with an auxiliary view that is consistently retargeted to closely highlight the spatial relationship between the manipulated object and the object nearest to it. Both the target and the position of the auxiliary camera are computed efficiently using the bisector surface of the two involved objects. The viewing target is set to the center of the closest area between the two objects, and the camera position is optimized under an objective function primarily measuring the visual clarity of the auxiliary view. We demonstrate the usefulness of our method through various experiments based on practical usage scenarios.

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PRISM interaction for enhancing control in immersive virtual environments

Cited by 134 publications

References 48 publications

The personal cockpit

The personal cockpit

Anisomorphic ray-casting manipulation for interacting with 2D GUIs

Optimal close‐up views for precise 3D manipulation

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