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Communicating deictic gestures through handheld multi-touch devices

Deictic gestures are gestures we make during communication to point at objects or persons. Indicative acts of directing-to guide the addressee to an object, while placing-for acts place an object for the addressee’s attention. Commonly used presentation software tools, such as PowerPoint and Keynote, offer ample support for placing-for gestures, e.g. slide transitions, progressive disclosure of list items and animations. Such presentation tools, however, do not generally offer adequate support for the directing-to indicative act (i.e. pointing gestures). In this paper we argue the value of presenting deictic gestures to a remote audience. Our research approach is threefold: identify indicative acts that are naturally produced by presenters; design tangible gestures for multi-touch surfaces that replicate the intent of those indicative acts; and design a set of graphical effects for remote viewing that best represent these indicative acts for the audience. Clinton Jorge1, Jos P. van Leeuwen2, Dennis Dams3, Jan Bouwen4 1 University of Madeira, Madeira-ITI, Funchal, Portugal; 2 The Hague University of Applied Sciences, The Hague, Netherlands; 3,4 Bell Labs, Alcatel-Lucent, Antwerp, Belgium Copyright shared between: University of Madeira, Madeira-ITI, Funchal, Portugal; The Hague University of Applied Sciences, The Hague, Netherlands; Bell Labs, Alcatel-Lucent, Antwerp, Belgium

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Communicating deictic gestures through handheld multi-touch devices

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Meet the mobiles!

Nu kan het nog: deskundigheid verwerven over mobiele apparaten. Mits je er tijd en energie insteekt om de mogelijkheden te onderzoeken. De mediatheek van Fontys Hogescholen deed dit, schafte er een aantal aan en nam ze onder de loep.

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Does Science-Fiction predict [or change] the future?

This research paper looks at a selection of science-fiction films and its connection with the progression of the use of television, telephone and print media. It also analyzes statistical data obtained from a questionnaire conducted by the research group regarding the use of communication media.

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Does Science-Fiction predict [or change] the future?

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Van weten naar verwezenlijken

Boekje met samenvatting van de afgeronde projecten in het kader van het project Van Weten naar Verwezenlijken 2012-2014.

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Creating traces, sharing insight

This investigation explores relations between 1) a theory of human cognition, called Embodied Cognition, 2) the design of interactive systems and 3) the practice of ‘creative group meetings’ (of which the so-called ‘brainstorm’ is perhaps the best-known example). The investigation is one of Research-through-Design (Overbeeke et al., 2006). This means that, together with students and external stakeholders, I designed two interactive prototypes. Both systems contain a ‘mix’ of both physical and digital forms. Both are designed to be tools in creative meeting sessions, or brainstorms. The tools are meant to form a natural, element in the physical meeting space. The function of these devices is to support the formation of shared insight: that is, the tools should support the process by which participants together, during the activity, get a better grip on the design challenge that they are faced with. Over a series of iterations I reflected on the design process and outcome, and investigated how users interacted with the prototypes.

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Reference points

We need mental and physical reference points. We need physical reference points such as signposts to show us which way to go, for example to the airport or the hospital, and we need reference points to show us where we are. Why? If you don’t know where you are, it’s quite a difficult job to find your way, thus landmarks and “lieux de memoire” play an important role in our lives.

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Haptics for the Development of Fundamental Rhythm Skills, Including Multi-limb Coordination

This chapter considers the use of haptics for learning fundamental rhythm skills, including skills that depend on multi-limb coordination. Different sensory modalities have different strengths and weaknesses for the development of skills related to rhythm. For example, vision has low temporal resolution and performs poorly for tracking rhythms in real time, whereas hearing is highly accurate. However, in the case of multi-limbed rhythms, neither hearing nor sight is particularly well suited to communicating exactly which limb does what and when, or how the limbs coordinate. By contrast, haptics can work especially well in this area, by applying haptic signals independently to each limb. We review relevant theories, including embodied interaction and biological entrainment. We present a range of applications of the Haptic Bracelets, which are computer-controlled wireless vibrotactile devices, one attached to each wrist and ankle. Haptic pulses are used to guide users in playing rhythmic patterns that require multi-limb coordination. One immediate aim of the system is to support the development of practical rhythm skills and multi-limb coordination. A longer-term goal is to aid the development of a wider range of fundamental rhythm skills including recognising, identifying, memorising, retaining, analysing, reproducing, coordinating, modifying and creating rhythms—particularly multi-stream (i.e. polyphonic) rhythmic sequences. Empirical results are presented. We reflect on related work and discuss design issues for using haptics to support rhythm skills. Skills of this kind are essential not just to drummers and percussionists but also to keyboards’ players and more generally to all musicians who need a firm grasp of rhythm.

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Haptics for the Development of Fundamental Rhythm Skills, Including Multi-limb Coordination

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In situ detection of product age and argon concentration as measure of the re-use potential of insulating glass units in buildings

High level circular use of post-consumer insulating glass units will contribute to lower the environmental and social impact of insulation glass industry. The application of various circular strategies for insulating glass units (IGU’s) is rising. The product age will give an indication of the remaining life-time of an IGU, but a method which includes screening a technical quality is needed to check if an IGU is indeed suitable for re-use on a high level of circularity. In this study the argon concentration is suggested as discriminative quality. Energy efficient double glazing applied in windows of buildings situated in The Netherlands were studied. Product codes were noted and unraveled. Measurements were performed using the Sparklike Laser Portable, a non-invasive argon measuring device, which generates argon concentration, glass thickness and cavity width values. In addition, measurements were performed with a Glass Check thickness meter. The resulting data were analyzed. Measuring errors were explored and used to setup a testing procedure. Threshold values of the product age and argon concentration were selected for different circular strategies. In conclusion, a screening method using the product age and argon concentration to determine the circular use potential of insulating glass units is proposed.

MULTIFILE

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Marking the moment: Coupling NOOT to the situated practice of creative sessions

Based on the theory of embodied cognition we developed NOOT, at tangible tool that allows marking audio-moments during creative sessions. A detailed analysis of using NOOT in practice lead to a reconceptualization of NOOT within processes of external scaffolding. It also spurred a new design project focused on reflection during group sessions

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Communicating deictic gestures through handheld multi-touch devices

Meet the mobiles!

Does Science-Fiction predict [or change] the future?

Van weten naar verwezenlijken

Creating traces, sharing insight

Reference points

Haptics for the Development of Fundamental Rhythm Skills, Including Multi-limb Coordination

In situ detection of product age and argon concentration as measure of the re-use potential of insulating glass units in buildings

Marking the moment: Coupling NOOT to the situated practice of creative sessions

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Communicating deictic gestures through handheld multi-touch devices

Meet the mobiles!

Does Science-Fiction predict [or change] the future?

Van weten naar verwezenlijken

Creating traces, sharing insight

Reference points

Haptics for the Development of Fundamental Rhythm Skills, Including Multi-limb Coordination

In situ detection of product age and argon concentration as measure of the re-use potential of insulating glass units in buildings

Marking the moment: Coupling NOOT to the situated practice of creative sessions