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| Distinguished Colloquium Series |
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When: March 9, 2011
Where: Audimax HG F 30 (Address: Rämistrasse 101)
Abstracts
Tico Ballagas: From Evolution to Revolution - Prototyping tools and techniques
for mobile and ubiquitous computing
Good interface design requires balancing competing forces and constraints. It is difficult to anticipate how people will adopt or use a new technology at the beginning of the design process.
Instead, successful designers triangulate a design solution through prototypes and dialogue with users. Prototypes externalize cognition and facilitate conversations to uncover surprising problems or generate suggestions for new designs. In general, research has shown that more prototypes lead to better designs. However in ubiquitous computing, functional prototypes of novel experiences are still time-consuming and expensive to build posing practical barriers for good interface design. To address these barriers, iStuff Mobile is a prototyping toolkit that lowers the threshold for designers to build functional prototypes of novel mobile and ubiquitous computing experiences. It leverages a visual programming environment to construct the interaction logic that is accessible to those not skilled at programming. Finally to illustrate the benefits of prototyping in the design process, I will present a case study of how we’ve used both iterative and parallel prototyping techniques to develop technology solutions that improve long-distance family communication.
Otmar Hilliges: HCI Remixed - Bringing the Physical World to the User Interface
We are in the midst of a new wave of Human Computer Interaction (HCI). Multi-touch and gesture-based interfaces have become as ubiquitous as the traditional keyboard and mouse. Nowadays users are as likely to own a touch-enabled device as they are to interact with a desktop computer. But what next does the future hold in terms of user interfaces? In this talk, I demonstrate the design, implementation and study of interactive systems that unpack this overarching question. The main theme of my research is around bringing more of the physicality of the real world into the digital domain. In particular, I highlight how with the emergence of new input sensing technologies, such as Kinect, we can push the boundaries in sensing and understanding the user, and create experiences that are radically new.
The focus of my talk will be on a novel mixed reality system called HoloDesk. A system combining a Kinect camera and an optical see-through display to allow users to directly interact with 3D graphics that are spatially coupled with the real-world. I will discuss a novel technique for representing Kinect data within a physics simulation. A GPU-based algorithm enables a variety of real-time interactions with virtual objects. Hands and other physical entities, both rigid and deforming, are modelled in high-fidelity. A qualitative study demonstrates a large set of emergent hand based gestures including sweeping, scooping lifting, grasping, and throwing virtual objects. Finally I discuss results from an empirical evaluation of the system, comparing direct and indirect instantiations of the system, and contrasting the 3D depth cues of our system with the additional use of stereo glasses.
For future work I want to highlight new challenges and research opportunities in this space of narrowing the gap between the physical and the digital world. I highlight how ultimately to solve these grander research challenges, HCI needs to broaden its horizons and reach out to domains such as computer vision, graphics and ubiquitous computing, but always have in our minds applications of technologies as well as the user.
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| Language |
English |
| Host |
- |
| Place |
HG F 30 |
| Date |
Friday, 9 March 2012 |
| Time |
10:00 |
Special Colloquium Series on Trends in Computer Science
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