Tilted tabletops: In between horizontal and vertical workspaces

Müller‐Tomfelde, Christian; Wessels, Anja; Schremmer, Claudia

doi:10.1109/tabletop.2008.4660183

Cited by 22 publications

(20 citation statements)

References 22 publications

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“…Whether the keyboard frame is used as a frame of reference during orientation will be interesting to investigate. Also, there is research that uses a slanted touchscreen as a digital sketching board [11]. Investigating the effect of orientation will be useful to such applications.…”

Section: Discussionmentioning

confidence: 99%

Understanding finger input above desktop devices

Wacharamanotham

Todi

Pye

et al. 2014

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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Using the space above desktop input devices adds a rich new input channel to desktop interaction. Input in this elevated layer has been previously used to modify the granularity of a 2D slider, navigate layers of a 3D body scan above a multitouch table and access vertically stacked menus. However, designing these interactions is challenging because the lack of haptic and direct visual feedback easily leads to input errors. For bare finger input, the user's fingers needs to reliably enter and stay inside the interactive layer, and engagement techniques such as midair clicking have to be disambiguated from leaving the layer. These issues have been addressed for interactions in which users operate other devices in midair, but there is little guidance for the design of bare finger input in this space.In this paper, we present the results of two user studies that inform the design of finger input above desktop devices. Our studies show that 2 cm is the minimum thickness of the above-surface volume that users can reliably remain within. We found that when accessing midair layers, users do not automatically move to the same height. To address this, we introduce a technique that dynamically determines the height at which the layer is placed, depending on the velocity profile of the user's initial finger movement into midair. Finally, we propose a technique that reliably distinguishes clicking from homing movements, based on the user's hand shape. We structure the presentation of our findings using Buxton's three-state input model, adding additional states and transitions for above-surface interactions.

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Section: Discussionmentioning

confidence: 99%

Understanding finger input above desktop devices

Wacharamanotham

Todi

Pye

et al. 2014

Proceedings of the SIGCHI Conference on Human Factors in Computing Systems

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“…Testing the generated swabbing input method will face the test person with the following setup: A standard multi touch notebook is placed in front of the user, using a holding frame which enables an angular positioning (20° from desk surface) to suit the test persons needs relative to the desk height [Müller-Tomfelde et al 2008]. The probands chair will be adjusted so that the table height is approximately similar to the elbow height while the arm points towards the ground.…”

Section: Methodsmentioning

confidence: 99%

Model Based Processing of Swabbing Movements on Touch Screens to Improve Accuracy and Efficacy for Information Input of Individuals Suffering from Kinetic Tremor

Mertens

Wacharamanotham

Hurtmanns

et al. 2012

Advances in Intelligent and Soft Computing

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Abstract. As a result of demographic change the average age of many western populations increases, accompanied with age-related disease patterns. Especially tremor symptoms rise accordingly, aggravating a barrier free interaction with information systems. In order to maintain a self determined lifestyle at home, new technologies and methods need to be introduced, especially for application in health care and telemedical scenarios. Hence, a new direct input technique based on wiping movements on touch screens has been developed. The combination of a new input concept and applying regular commercially available technologies helps to avoid high costs for acquisition and therefore makes it marketable. While making an input on the touch screen the precise characteristics of every wiping movement can be tracked and is used for computation of the desired entry. The efficacy of this approach was evaluated within a clinical study with n=15 subjects. The results show that the error ratio for inputs by tremor patients can be significantly reduced in comparison to a virtual keyboard, depending on tremor strength and form. The learning curve for first time users is very steep and tends to result in inputs that are only slightly steady than purposeful movements to standard buttons and keys.

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“…In contrast, physical documents can be tilted off the table, carried to a more comfortable location for reading, or repeatedly nudged in a largely subconscious process, thus cycling through different body postures [23]. However, the problem can be mitigated by tilting the desk at an angle towards the reader [20,21].…”

Section: System Designmentioning

confidence: 99%

Hybrid documents ease text corpus analysis for literary scholars

Deininghaus

Möllers

Wittenhagen

et al. 2010

ACM International Conference on Interactive Tabletops and Surfaces

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We present a study that explores how literary scholars interact with physical and digital documents in their daily work. Motivated by findings from this study, we propose refactoring the working environment of our target audience to improve the integration of digital material into established paper-centric processes. This is largely facilitated through the use of hybrid documents, i.e., cross-modal compound documents that employ a printed book for rich, tangible interaction in tandem with a digital component for matching interactive augmentation on a digital workbench. The results from two user studies in which we evaluated increasingly detailed prototypes demonstrate that this design offers better support for central workflows in literary studies than currently prevalent approaches.

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Tilted tabletops: In between horizontal and vertical workspaces

Cited by 22 publications

References 22 publications

Understanding finger input above desktop devices

Understanding finger input above desktop devices

Model Based Processing of Swabbing Movements on Touch Screens to Improve Accuracy and Efficacy for Information Input of Individuals Suffering from Kinetic Tremor

Hybrid documents ease text corpus analysis for literary scholars

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