Object movement in virtual 3D space involves 3D rotations and translations. Conventional desktop interfaces are difficult for a user to simultaneously control the variations of six degrees of ...freedom. In this paper, we present a vision-based user-friendly method for this purpose. A user can simply grasp one or more objects and fly the objects intuitively. The proposed system using an efficient method to detect and track the objects in the scene. The estimated object motions are used to drive the corresponding targets on the screen or to trigger predefined actions. This interface can track more than one objects at an interactive rate and is applied to a 3D flight shooting game.
There is a widely-held belief in the TEI and games communities that using tangible props enhances the player performance and gaming experience. Building on prior research in gaming, we studied people ...playing a video game using a gestural interface without props, with an incomplete or a complete tangible prop. The interaction with the tangibles was judged to be more natural, led to higher flow experience and was preferred, but there were no differences regarding performance, enjoyment, autonomy, presence and mental effort. There was a tendency that especially the incomplete tangible prop was judged as less intuitive and people felt less competent in gameplay. In contrast to prior research, the results show that tangible interaction is not always more beneficial than gestural interaction and that, especially for incomplete tangibles, any beneficial effects may be domain-dependent.
Slots-Memento Li, Cun; Hu, Jun; Hengeveld, Bart ...
Proceedings of the Thirteenth International Conference on Tangible, Embedded, and Embodied Interaction,
03/2019
Conference Proceeding
Mementos carry personal symbolic meaning and can be used to privately reflect on the past or share memories28. Older adults spend much time collecting mementos but spend less time telling stories ...behind the mementos. Once they pass away, stories behind mementos vanish with their owners. In this paper, we present Slots-Memento, a tangible device aiming to facilitate intergenerational story sharing and preservation for older adults. It builds on the metaphor of slot-machine, and integrates functions of memento photo display, story recording, and preservation. Our design process started with context inquiry, older adults and young adults were recruited, aiming to understand the status quo of their memento storytelling, and define design requirements. A preliminary evaluation was conducted, discussion and future work are in the final part.
An 1834 Mediterranean Garden in Berlin Ullmer, Brygg; Paar, Philip; Coconu, Liviu ...
Proceedings of the 7th ACM International Symposium on Pervasive Displays,
06/2018
Conference Proceeding
In 2004, a team of researchers realized a semi-immersive interactive gallery installation, visualizing an 1834 Mediterranean garden, introduced as "italienisches Kunststück" (Italian legerdemain) by ...Peter Joseph Lenné. The park was originally realized on the grounds of Schloss Sanssouci in Potsdam, Germany. The installation centered on highly detailed renderings of hundreds of plants projected upon a panoramic display. Interactivity was expressed with a tangible interface which (while presently dated) we believe remains without near-precedent then or since. We present the installation (experienced by roughly 20,000 visitors), focusing on the interaction aspects. We introduce new book and table/door-format mockups. Drawing upon a heuristic of the scientist-philosopher Freeman Dyson, we consider grounded future prospect variations in the contexts of 2018, 2032, and 2202. We see this exercise as prospectively generalizing to a variety of similar and widely diverse application domains.
Remote Biofeedback Sharing, Opportunities and Challenges Frey, Jérémy; Cauchard, Jessica R.
Proceedings of the 2018 ACM International Joint Conference and 2018 International Symposium on Pervasive and Ubiquitous Computing and Wearable Computers,
10/2018
Conference Proceeding
Odprti dostop
Biofeedback is commonly used to regulate one's state, for example to manage stress. The underlying idea is that by perceiving a feedback about their physiological activity, a user can act upon it. In ...this paper we describe through two recent projects how biofeedback could be leveraged to share one's state at distance. Such extension of biofeedback could answer to the need of belonging, further widening the applications of the technology in terms of well-being.
Tangible vs. virtual representations Cuendet, Sébastien; Bumbacher, Engin; Dillenbourg, Pierre
Proceedings of the 7th Nordic Conference on Human-Computer Interaction: Making Sense Through Design,
10/2012
Conference Proceeding
Tangible user interfaces (TUIs) have been the focus of much attention in the HCI and learning communities because of their many potential benefits for learning. However, there have recently been ...debates about whether TUIs can actually increase learning outcomes and if so, under which conditions. In this article, we investigate the effect of object representation (physical vs. virtual) on learning in the domain of spatial skills. We ran a comparative study with 46 participants to measure the effects of the object representation on the ability to establish a link between 2D and 3D representations of an object. The participants were split into two conditions: in the first one, the 3D representation of the object was virtual; in the second one, it was tangible. Findings show that in both conditions the TUI led to a significant improvement of the spatial skills. The learning outcomes were not different between the two conditions, but the performance during the activities was significantly higher when using the tangible representation as opposed to the virtual one, and even more so in for difficult cases.
Ultra-tangibles Marshall, Mark; Carter, Thomas; Alexander, Jason ...
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems,
05/2012
Conference Proceeding
Tangible objects placed on interactive surfaces allow users to employ a physical object to manipulate digital content. However, creating the reverse effect - having digital content manipulate a ...tangible object placed on the surface - is a more challenging task. We present a new approach to this problem, using ultrasound-based air pressure waves to move multiple tangible objects, independently, around an interactive surface. We describe the technical background, design, implementation, and test cases for such a system. We conclude by discussing practical uses of our system, Ultra-Tangibles, in the creation of new tangible user interfaces.
In general, it is assumed that clay crafting with dynamic clay draws out creativity more than with common colored clay of which the color is static in contrast to its flexible form. NeonDough is clay ...crafting with dynamic glowing clay which contains a module that consists of electronic circuits, sensors and LEDs. To be specific, the colors of the LEDs are altered according to the resistance between the modules' electrodes. Pressing pieces of clay together mixes their colors, while stretching pieces apart changes the color gradually. In this thesis we describe the design and implementation of the device, the objective reactions from its use and future prospects.
Emergent Interfaces Dancu, Alexandru; Hedler, Catherine; Nielsen, Stig Anton ...
Proceedings of the 33rd Annual ACM Conference Extended Abstracts on Human Factors in Computing Systems,
04/2015
Conference Proceeding
Odprti dostop
In this paper, we present five types of constructive assemblies that emerge through a form-finding process resembling growth. The synthetic growth is obtained through the assembly of identical blocks ...performed by two competing users. Each block type gives rise to different morphologies during each assembly session depending on the user and the environment that is augmented through projection on the synthetic structure and around it. The digitally augmented tangible interface is evaluated by professionals and students in interaction design. We introduce the concept of Emergent Interfaces (EI), which proposes harnessing non-determinism, temporal design, and self-organization. This work could contribute to organic user interfaces and morphogenetic engineering.
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