Understanding Users' Touch Behavior on Large Mobile Touch-Screens and Assisted Targeting by Tilting Gesture

Chang, Youli; L’Yi, Sehi; Koh, Kyle; Seo, Jinwook

doi:10.1145/2702123.2702425

Cited by 44 publications

(31 citation statements)

References 25 publications

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“…Rekimoto [25] and Weberg et al [36] explored using a tilt signal to navigate menus and 2D maps. Several other studies [8,12,33] also explored single-handed interaction on mobile devices by combining motion and touch to 1) assist targeting and extend thumb's reach [8], 2) enhance navigation with quick command gestures [33], and 3) enable new types of motion gestures, such as tilt to zoom, pivot-to-lock, and shake to delete [12]. Although there have been many attempts to use tilt and tilt gestures for text entry, we have applied tilt to shape writing to address the single-handed text entry problem.…”

Section: Tilt-based Mobile Interaction and Text Entrymentioning

confidence: 94%

Investigating Tilt-based Gesture Keyboard Entry for Single-Handed Text Entry on Large Devices

Yeo

Phang²,

Castellucci

et al. 2017

Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems

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The popularity of mobile devices with large screens is making single-handed interaction difficult. We propose and evaluate a novel design point around a tilt-based text entry technique which supports single handed usage. Our technique is based on the gesture keyboard (shape writing). However, instead of drawing gestures with a finger or stylus, users articulate a gesture by tilting the device. This can be especially useful when the user's other hand is otherwise encumbered or unavailable. We show that novice users achieve an entry rate of 15 wordsper-minute (wpm) after minimal practice. A pilot longitudinal study reveals that a single participant achieved an entry rate of 32 wpm after approximate 90 minutes of practice. Our data indicate that tilt-based gesture keyboard entry enables walk-up use and provides a suitable text entry rate for occasional use and can act as a promising alternative to single-handed typing in certain situations.

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Section: Tilt-based Mobile Interaction and Text Entrymentioning

confidence: 94%

Investigating Tilt-based Gesture Keyboard Entry for Single-Handed Text Entry on Large Devices

Yeo

Phang²,

Castellucci

et al. 2017

Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems

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“…Some researchers have explored how to use grasp and orientation information to enrich the interaction, e.g. help selecting an action item on the device through pointing [6,7,11] or changing the orientation of the phone to landscape [4]. However these works only focus on specific applications or hardware implementation.…”

Section: Introductionmentioning

confidence: 99%

Investigating how the hand interacts with different mobile phones

Eardley

Gill

Roudaut

et al. 2016

Proceedings of the 18th International Conference on Human-Computer Interaction With Mobile Devices and Services Adjunct

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In this paper we investigate the physical interaction between the hand and three types of mobile device interaction: touchscreen, physical keyboard and stylus. Through a controlled study using video observational analysis, we observed firstly, how the participants gripped the three devices and how these grips were device dependent. Secondly we looked closely at these grips to uncover how participants performed what we call micro-movements to facilitate a greater range of interaction, e.g. reaching across the keyboard. The results extend current knowledge by comparing three handheld device input methods and observing the movements, which the hand makes in five grips. The paper concludes by describing the development of a conceptual design, proposed as a provocation for the opening of dialogue on how we conceive hand usage and how it might be optimized when designed for mobile devices. Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than ACM must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from Permissions@acm.org. Author Keywords

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“…Existing research into transitions or movements have focussed on the constraints of using a single-handed grip to interact with the device by tilting it to bring it into range of the thumb [6,7,10]. These works focus on a single device type and single device size.…”

Section: Pre-touch Sensing For Mobile Interactionmentioning

confidence: 99%

“…In testing of Hypotheses H1, H3 and H5, the second quantitative study also showed that participants, made similar twists along the Beta and Gamma axes for Target Positions 1, 2, 3 and 4 (see Figures 11 and 13). The adaptive homepage concept has some similarities with "tilt slide" [10]. In this concept homepage icons shift closer to the dominant hand when tilt is sensed along both the Beta and Gamma axes ( Figure 17).…”

Section: Adaptive Homepagementioning

confidence: 99%

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Understanding Grip Shifts

Eardley

Roudaut

Gill

et al. 2017

Proceedings of the 2017 CHI Conference on Human Factors in Computing Systems

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In this paper we present an investigation into how hand usage is affected by different mobile phone form factors. Our initial (qualitative) study explored how users interact with various mobile phone types (touchscreen, physical keyboard and stylus). The analysis of the videos revealed that each type of mobile phone affords specific handgrips and that the user shifts these grips and consequently the tilt and rotation of the phone depending on the context of interaction. In order to further investigate the tilt and rotation effects we conducted a controlled quantitative study in which we varied the size of the phone and the type of grips (Symmetric bimanual, Asymmetric bimanual with finger, Asymmetric bimanual with thumb and Single handed) to better understand how they affect the tilt and rotation during a dual pointing task. The results showed that the size of the phone does have a consequence and that the distance needed to reach action items affects the phones' tilt and rotation. Additionally, we found that the amount of tilt, rotation and reach required corresponded with the participant's grip preference. We finish the paper by discussing the design lessons for mobile UI and proposing design guidelines and applications for these insights.

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Understanding Users' Touch Behavior on Large Mobile Touch-Screens and Assisted Targeting by Tilting Gesture

Cited by 44 publications

References 25 publications

Investigating Tilt-based Gesture Keyboard Entry for Single-Handed Text Entry on Large Devices

Investigating Tilt-based Gesture Keyboard Entry for Single-Handed Text Entry on Large Devices

Investigating how the hand interacts with different mobile phones

Understanding Grip Shifts

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