ForceEdge

Antoine, Axel; Malacria, Sylvain; Casiez, Géry

doi:10.1145/3025453.3025605

Cited by 22 publications

(3 citation statements)

References 23 publications

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“…where A is the area of the vent and u is the flow velocity. 2 For a choked isothermal flow (i.e. constricted by the size of the vent, and with no change in temperature),…”

Section: Modelling Pressure Equalisationmentioning

confidence: 99%

“…Interaction researchers have used these tools to explore the force component of touch input as an interaction parameter in a diverse design space [6,10]. As with spatial position, force can either be treated as a continuous input for analogue parameter control (such as the speed of scrolling [2,3] or zooming [8,15,19,23]), or discretised into several levels for selecting between modes of operation (such as opening context menus [9,30], switching between keyboard layouts [5,8], or as part of a gesture vocabulary [20]).…”

Section: Introductionmentioning

confidence: 99%

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Estimating Touch Force with Barometric Pressure Sensors

Quinn

2019

Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems

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Finger pressure offers a new dimension for touch interaction, where input is defined by its spatial position and orthogonal force. However, the limited availability and complexity of integrated force-sensing hardware in mobile devices is a barrier to exploring this design space. This paper presents a synthesis of two features in recent mobile devices-a barometric sensor (pressure altimeter) and ingress protectionto sense a user's touch force. When a user applies force to a device's display, it flexes inward and causes an increase in atmospheric pressure within the sealed chassis. This increase in pressure can be sensed by the device's internal barometer. However, this change is uncontrolled and requires a calibration model to map atmospheric pressure to touch force. This paper derives such a model and demonstrates its viability on four commercially-available devices (including two with dedicated force sensors). The results show this method is sensitive to forces of less than 1 N, and is comparable to dedicated force sensors. CCS CONCEPTS • Human-centered computing → Ubiquitous and mobile computing systems and tools; Touch screens; • Hardware → Sensors and actuators.

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“…where A is the area of the vent and u is the flow velocity. 2 For a choked isothermal flow (i.e. constricted by the size of the vent, and with no change in temperature),…”

Section: Modelling Pressure Equalisationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Estimating Touch Force with Barometric Pressure Sensors

Quinn

2019

Proceedings of the 2019 CHI Conference on Human Factors in Computing Systems

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“…proposed an autoscroll technique that uses force-sensing to scroll the view while adjusting endpoint locations [2].…”

Section: Adjusting Endpointsmentioning

confidence: 99%

Improving Discoverability and Expert Performance in Force-Sensitive Text Selection for Touch Devices with Mode Gauges

Goguey

Malacria

Gutwin

2018

Proceedings of the 2018 CHI Conference on Human Factors in Computing Systems

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Text selection on touch devices can be a difficult task for users. Letters and words are often too small to select directly, and the enhanced interaction techniques provided by the OS-magnifiers, selection handles, and methods for selecting at the character, word, or sentence level-often lead to as many usability problems as they solve. The introduction of force-sensitive touchscreens has added another enhancement to text selection (using force for different selection modes); however, these modes are difficult to discover and many users continue to struggle with accurate selection. In this paper we report on an investigation of the design of touch-based and force-based text selection mechanisms, and describe two novel text-selection techniques that provide improved discoverability, enhanced visual feedback, and a higher performance ceiling for experienced users. Two evaluations show that one design successfully combined support for novices and experts, was never worse than the standard iOS technique, and was preferred by participants.

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Smart-Scrolling: Improving Information Access Performance in Linear Layout Views for Small-Screen Devices

Liu

Mao

et al. 2019

Intelligent Computing Theories and Application

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ForceEdge

Cited by 22 publications

References 23 publications

Estimating Touch Force with Barometric Pressure Sensors

Estimating Touch Force with Barometric Pressure Sensors

Improving Discoverability and Expert Performance in Force-Sensitive Text Selection for Touch Devices with Mode Gauges

Smart-Scrolling: Improving Information Access Performance in Linear Layout Views for Small-Screen Devices

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