Measuring the linear and rotational user precision in touch pointing

@inproceedings{Brard2012MeasuringTL,
  title={Measuring the linear and rotational user precision in touch pointing},
  author={F. B{\'e}rard and Am{\'e}lie Rochet-Capellan},
  booktitle={ITS '12},
  year={2012}
}
This paper addresses the limit of user precision in pointing to a target when the finger is already in contact with a touch surface. User precision was measured for linear and rotational pointing. We developed a novel experimental protocol that improves the estimation of user's precision as compare to previous protocols. Our protocol depends on high-resolution measurements of finger motions. This was achieved by the means of two optical finger trackers specially developed for this study. The… Expand
The smallest target size for a comfortable pointing in freehand space: human pointing precision of freehand interaction
TLDR
This paper presents work on studying and estimating human pointing precision in three separate dimensions in different motion ranges when performing precision movement in freehand space and indicates that precise movement of freehand induced side effect to make hand stiff and gesture like “putting forward” physically exhausting, especially to reach small targets. Expand
Mobile pointing task in the physical world: balancing focus and performance while disambiguating
TLDR
A user experiment showed that keeping users' focus in the physical world outperforms techniques that require the users to switch their focus to a digital representation distant from the physical objects, when disambiguating up to 8 objects. Expand
MagniFinger: Fingertip probe microscope with direct micro movements
TLDR
MagniFinger, a new finger-based microscope that allows users to magnify the contacting surface on their fingertips using two means of control: sliding and tilting, shortens the time of reaching targets compared to the simple sliding-based control. Expand
Handheld augmented reality interaction : spatial relations
We explored interaction within the context of handheld Augmented Reality (AR), where a handheld device is used as a physical magic lens to 'augment' the physical surrounding. We focused, inExpand
Natural Interaction in Freehand Pointing: Designing the mapping of interaction space.
Distant pointing using freehand is usually applied in interaction environments where the visual interface is out of a user's arm reach [1]. One example is a user sitting on a couch who is controllingExpand
ExpanDial: Designing a Shape-Changing Dial
TLDR
This work investigates the design of a shape-changing dial, i.e. a dial that can change its circumference and height to adapt to different contexts of interaction, and designs a prototype, ExpanDial, inspired from morphing origami, to better understand what kind of interaction and manipulation could be harnessed from such device. Expand
When High Fidelity Matters: AR and VR Improve the Learning of a 3D Object
TLDR
The experiment results indicate that VR and AR HF techniques can have a substantial benefit for education as the object was recognized more than 27% faster when learnt using the HF techniques than when using the tablet. Expand
Evaluating a biosensor-based interface to recognize hand-finger gestures using a Myo armband
TLDR
The Myo armband showed that it is an economical and standard bio-sensing wearable device that can be successfully used in hand-finger gesture recognition and provided a greater level of accessibility and encumbered the users less when this approach was compared with vision- and sensor-based approaches. Expand
Direct and expressive interaction on the desktop: increasing granularity, extent, and dimensionality. (Interaction directe et expressive sur le bureau: améliorer la granularité, l'étendue et la dimensionnalité des actions de l'utilisateur)
TLDR
Three ways of using a standard laptop as a musical instrument, allowing simultaneous multiparametric control of sound synthesis in real time, are described, together with design considerations and examples of successful uses. Expand
Is it too small?: Investigating the performances and preferences of users when typing on tiny QWERTY keyboards
TLDR
The results suggest that achieving satisfactory levels of text input on tiny QWERTY keyboards is possible and showed that using either a bigram language model or a detailed touch model can effectively correct imprecision in users’ input. Expand
...
1
2
...

References

SHOWING 1-10 OF 27 REFERENCES
AnglePose: robust, precise capacitive touch tracking via 3d orientation estimation
We present a finger-tracking system for touch-based interaction which can track 3D finger angle in addition to position, using low-resolution conventional capacitive sensors, therefore compensatingExpand
Visual Tracking of Bare Fingers for Interactive Surfaces
V isual tracking of bare fingers allows more direct manipulation of digital objects, multiple simultaneous users interacting with their two hands, and permits the interaction on large surfaces, usingExpand
High precision touch screen interaction
TLDR
Two techniques are proposed: Cross-Keys that uses discrete taps on virtual keys integrated with a crosshair cursor, and an analog Precision-Handle that uses a leverage (gain) effect to amplify movement precision from the user's finger tip to the end cursor. Expand
Precise selection techniques for multi-touch screens
TLDR
A set of five techniques, called Dual Finger Selections, which leverage the recent development of multi-touch sensitive displays to help users select very small targets by adjusting the control-display ratio with a secondary finger while the primary finger controls the movement of the cursor. Expand
Shift: a technique for operating pen-based interfaces using touch
TLDR
The results of a user study are reported showing that with Shift participants can select small targets with much lower error rates than an unaided touch screen and that Shift is faster than Offset Cursor for larger targets. Expand
Visual touchpad: a two-handed gestural input device
TLDR
By segmenting the hand regions from the video images and then augmenting them transparently into a graphical interface, the Visual Touchpad provides a compelling direct manipulation experience without the need for more expensive tabletop displays or touch-screens, and with significantly less self-occlusion. Expand
Empirical evaluation for finger input properties in multi-touch interaction
TLDR
This paper designed a series of experiments to explore human finger input properties and identified several useful properties such as contact area, contact shape and contact orientation which can be exploited to improve the performance of multi-touch selecting and pointing tasks. Expand
Understanding touch
TLDR
This work revisits the implicit assumption that users acquire targets with the center of the contact area between finger and device and presents the projected center model, under which error offsets drop to 1.6mm, which suggests that the new model is indeed a good approximation of how users conceptualize touch input. Expand
Back-of-device interaction allows creating very small touch devices
TLDR
This paper argues that the key to touch-enabling very small devices is to use touch on the device backside, and presents four form factor concepts based on back-of-device interaction and design guidelines extracted from a second user study. Expand
The Impact of Control-Display Gain on User Performance in Pointing Tasks
TLDR
A usable range of CD gain settings between thresholds of speed and accuracy is derived given the capabilities of a pointing device, display, and the expected range of target widths and distances. Expand
...
1
2
3
...