The Effect of Offset Correction and Cursor on Mid-Air Pointing in Real and Virtual Environments

Mayer, Sven; Schwind, Valentin; Schweigert, Robin; Henze, Niels

doi:10.1145/3173574.3174227

Cited by 60 publications

(21 citation statements)

References 43 publications

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“…DT is less accurate than the others. Interacting in mid-air is not free from difficulties [8] due to hand tremor, fatigue [1,16] and perception issues such as the distance estimation [6,14,17]. Design and Participants.…”

Section: Experiments 1: Visible Objectsmentioning

confidence: 99%

3D Tabletop AR

Plasson

Cunin²,

Laurillau

et al. 2020

Proceedings of the International Conference on Advanced Visual Interfaces

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This paper contributes a first comparative study of three techniques for selecting 3D objects anchored to the table in tabletop Augmented Reality (AR). The impetus for this study is that touch interaction makes more sense when the targeted objects are anchored to the table. We experimentally compare touch and a mixed (touch+midair) techniques with the common direct mid-air technique. The touch and mixed techniques involve a decomposition of the 3D task into a 2D task by touch on the table followed by a 1D task by touch or mid-air interaction. Results show that: (1) The touch and mixed techniques present completion times similar to the mid-air technique and are more accurate than the mid-air technique; (2) The mixed technique defines a good compromise between accuracy of touch interaction and speed of mid-air interaction. CCS CONCEPTS • Human-centered computing → Human computer interaction (HCI); Mixed / augmented reality.

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Section: Experiments 1: Visible Objectsmentioning

confidence: 99%

3D Tabletop AR

Plasson

Cunin²,

Laurillau

et al. 2020

Proceedings of the International Conference on Advanced Visual Interfaces

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“…For VR, spatial pointing techniques are of special interest, often relying on virtual hand or raycasting techniques. In the context of raycasting, Mayer et al [66] investigated the effects of offset correction and cursor on mid-air pointing and Schwind et al [94] showed that avatar representations can have an effect on ray-castingbased pointing accuracy. For virtual hand-based pointing, Barrera et al [9] indicated effects of stereo display deficiencies.…”

Section: Spatial Interactionmentioning

confidence: 99%

Above Surface Interaction for Multiscale Navigation in Mobile Virtual Reality

Menzner¹,

Gesslein²,

Otte³

et al. 2020

Preprint

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Figure 1: Relative, rate-controlled mapping for multiscale navigation between a touchscreen and VR headset: a) A user points her finger in the zoom out space (between the maximum finger height and halfway down the minimum height). b) While she holds her finger in this zoom out space the virtual information space scales down until it eventually reaches the size of the touch screen (with a rate corresponding to the height of the finger). c) The user points her finger in the zoom in space (between the minimum height and halfway up to the maximum height). c) While she holds her finger in this zoom in space the virtual information space scales up until it eventually reaches 1:1 scale (with a rate corresponding to the height of the finger). Target selection happens through touch on the touch screen.

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“…In human-computer interaction (HCI) and HRI research we can identify two classes of methods for estimating pointing rays: head-rooted and arm-rooted. The head-rooted techniques consider a pointing ray that originates somewhere within the head: from a dominant eye ( [23]), cyclops eye ( [24]), or head centroid ( [25,26]). Arm-rooted methods assume the ray originates from a point laying on the pointing arm: at shoulder, elbow ( [25,7,27,28]), wrist ( [8]) or index-finger ( [27]).…”

Section: Related Workmentioning

confidence: 99%

“…We define a pointing ray r as a 3D half-line on which the point that the human intends to indicate lies; we adopt a simplified version of the head-finger model (eye-finger ray cast (EFRC) method in [24]): we define r as the halfline originating at the operator's dominant eye and passing through the tip of the pointing finger; we further assume that both the eye and the shoulder lie on the z-axis of {H}. Under these assumptions, r can be reconstructed in frame of reference {H} using the data sensed by the wrist-mounted IMU, and some operator body measurements, namely: shoulder height, shoulder-finger length, shoulder-eye distance.…”

Section: A Definitionsmentioning

confidence: 99%

Proximity Human-Robot Interaction Using Pointing Gestures and a Wrist-mounted IMU

Gromov

Abbate

Gambardella

et al. 2019

2019 International Conference on Robotics and Automation (ICRA)

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We present a system for interaction between colocated humans and mobile robots, which uses pointing gestures sensed by a wrist-mounted IMU. The operator begins by pointing, for a short time, at a moving robot. The system thus simultaneously determines: that the operator wants to interact; the robot they want to interact with; and the relative pose among the two. Then, the system can reconstruct pointed locations in the robot's own reference frame, and provide real-time feedback about them so that the user can adapt to misalignments. We discuss the challenges to be solved to implement such a system and propose practical solutions, including variants for fast flying robots and slow ground robots. We report different experiments with real robots and untrained users, validating the individual components and the system as a whole.

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The Effect of Offset Correction and Cursor on Mid-Air Pointing in Real and Virtual Environments

Cited by 60 publications

References 43 publications

3D Tabletop AR

3D Tabletop AR

Above Surface Interaction for Multiscale Navigation in Mobile Virtual Reality

Proximity Human-Robot Interaction Using Pointing Gestures and a Wrist-mounted IMU

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