hotauthor: weiss_m* : Human-Computer Interaction Bibliography Search

[1] HoloDesk: direct 3d interactions with a situated see-through display Morphing & tracking & stacking: 3D interaction / Hilliges, Otmar / Kim, David / Izadi, Shahram / Weiss, Malte / Wilson, Andrew Proceedings of ACM CHI 2012 Conference on Human Factors in Computing Systems 2012-05-05 v.1 p.2421-2430

ACM Digital Library Link

Summary: HoloDesk is an interactive system combining an optical see through display and Kinect camera to create the illusion that users are directly interacting with 3D graphics. A virtual image of a 3D scene is rendered through a half silvered mirror and spatially aligned with the real-world for the viewer. Users easily reach into an interaction volume displaying the virtual image. This allows the user to literally get their hands into the virtual display and to directly interact with an spatially aligned 3D virtual world, without the need for any specialized head-worn hardware or input device. We introduce a new technique for interpreting raw Kinect data to approximate and track rigid (e.g., books, cups) and non-rigid (e.g., hands, paper) physical objects and support a variety of physics-inspired interactions between virtual and real. In particular the algorithm models natural human grasping of virtual objects with more fidelity than previously demonstrated. A qualitative study highlights rich emergent 3D interactions, using hands and real-world objects. The implementation of HoloDesk is described in full, and example application scenarios explored. Finally, HoloDesk is quantitatively evaluated in a 3D target acquisition task, comparing the system with indirect and glasses-based variants.

[2] Dynamic portals: a lightweight metaphor for fast object transfer on interactive surfaces Interacting with data and virtual objects / Voelker, Simon / Weiss, Malte / Wacharamanotham, Chat / Borchers, Jan Proceedings of the 2011 ACM International Conference on Interactive Tabletops and Surfaces 2011-11-13 p.158-161

ACM Digital Library Link

Summary: We introduce Dynamic Portals, a lightweight interaction technique to transfer virtual objects across tabletops. They maintain the spatial coherence of objects and inherently align them to the recipients' workspace. Furthermore, they allow the exchange of digital documents among multiple users. A remote view enables users to align their objects at the target location. This paper explores the interaction technique and shows how our concept can also be applied as zoomable viewport and shared workspace.

[3] FingerFlux: near-surface haptic feedback on tabletops Pointing / Weiss, Malte / Wacharamanotham, Chat / Voelker, Simon / Borchers, Jan Proceedings of the 201 ACM Symposium on User Interface Software and Technology1 2011-10-16 v.1 p.615-620

ACM Digital Library Link

Summary: We introduce FingerFlux, an output technique to generate near-surface haptic feedback on interactive tabletops. Our system combines electromagnetic actuation with permanent magnets attached to the user's hand. FingerFlux lets users feel the interface before touching, and can create both attracting and repelling forces. This enables applications such as reducing drifting, adding physical constraints to virtual controls, and guiding the user without visual output. We show that users can feel vibration patterns up to 35 mm above our table, and that FingerFlux can significantly reduce drifting when operating on-screen buttons without looking.

[4] Gathering in Digital Spaces: Exploring Topical Communities on Twitter / Huston, Cate / Weiss, Michael Proceedings of the 2011 International Conference on Social Informatics 2011-10-06 p.320-323

Keywords: social networking; communities; visualization; twitter

Link to Digital Content at Springer

Summary: On Twitter, hashtags allow users to gather around a topic in a digital space, something that has been common since early IRC and internet chat rooms. However there are three important differences when gathering on Twitter: persistence, invitation, and device independence. In this paper, we search for patterns in these digital spaces through the use of visualization to explore the temporal rhythms that emerge.

[5] Second workshop on engineering patterns for multi-touch interfaces Workshops / Luyten, Kris / Vanacken, Davy / Weiss, Malte / Borchers, Jan / Nacenta, Miguel ACM SIGCHI 2011 Symposium on Engineering Interactive Computing Systems 2011-06-13 p.335-336

ACM Digital Library Link

Summary: Multi-touch gained a lot of interest in the last couple of years and the increased availability of multi-touch enabled hardware boosted its development. However, the current diversity of hardware, toolkits, and tools for creating multi-touch interfaces has its downsides: there is only little reusable material and no generally accepted body of knowledge when it comes to the development of multi-touch interfaces. This workshop is the second workshop on this topic and the workshop goal remains unchanged: to seek a consensus on methods, approaches, toolkits, and tools that aid in the engineering of multi-touch interfaces and transcend the differences in available platforms. The patterns mentioned in the title indicate that we are aiming to create a reusable body of knowledge.

[6] Rendering physical effects in tabletop controls Tangibles / Weiss, Malte / Remy, Christian / Borchers, Jan Proceedings of ACM CHI 2011 Conference on Human Factors in Computing Systems 2011-05-07 v.1 p.3009-3012

ACM Digital Library Link

Summary: We introduce dynamic physical properties as an additional degree of freedom for passive tabletop controls. Using electromagnetic actuation, we manipulate attributes of tangibles on the fly, such as perceived weight, spring resistance, friction, and latching. We describe our actuation concepts, prototypes, and measurements showing that magnetic fields can change physical effects in a linear way. Controlled experiments reveal that participants can tactually distinguish four rendered resistance levels of a button prototype and easily detect dynamic detents in a continuous slider. Finally, we describe how adjustable physical properties in tangibles can enhance tabletop interaction.

[7] Increasing energy awareness through web-enabled power outlets / Weiss, Markus / Guinard, Dominique Proceedings of the 2010 International Conference on Mobile and Ubiquitous Multimedia 2010-12-01 p.20

ACM Digital Library Link

Summary: Rising global energy demand, increasing electricity prices, and the limitation of natural resources has led to increased thoughts on residential energy consumption. A necessary step towards energy conservation is to provide timely and fine-grained consumption information. This allows for users to identify energy saving opportunities and possibly adjust their behavior to conserve energy. In this paper, we present a device-level energy monitoring system that is based on off-the-shelf components and enables users to monitor, control, and compare the electricity consumption of their appliances. By providing a RESTful API, we seamlessly integrate the smart power outlets into the web and facilitate the development of extensions and novel features. We demonstrate this through the implementation of a web user interface and a mobile phone interface. We further confirm the suitability of our approach with the help of a 12 months pilot deployment. The results of a questionnaire provide insights into additional user features and the interviews conducted with developers who used our open sourced system illustrate the usefulness of the RESTful approach for the smart energy domain.

[8] BendDesk: dragging across the curve Displays / Weiss, Malte / Voelker, Simon / Sutter, Christine / Borchers, Jan Proceedings of the 2010 ACM International Conference on Interactive Tabletops and Surfaces 2010-11-07 p.1-10

ACM Digital Library Link

Summary: We present BendDesk, a hybrid interactive desk system that combines a horizontal and a vertical interactive surface via a curve. The system provides seamless touch input across its entire area. We explain scalable algorithms that provide graphical output and multi-touch input on a curved surface. In three tasks we investigate the performance of dragging gestures across the curve, as well as the virtual aiming at targets. Our main findings are: 1) Dragging across a curve is significantly slower than on flat surfaces. 2) The smaller the entrance angle when dragging across the curve, the longer the average trajectory and the higher the variance of trajectories across users. 3) The curved shape of the system impairs virtual aiming at targets.

[9] The BendDesk demo: multi-touch on a curved display Demos / Weiss, Malte / Voelker, Simon / Borchers, Jan Proceedings of the 2010 ACM International Conference on Interactive Tabletops and Surfaces 2010-11-07 p.317

ACM Digital Library Link

Summary: BendDesk is a curved interactive display that merges a vertical and a horizontal multi-touch surface with a curve. Users sitting at the table can perform multi-touch input on the entire surface. This demo shows the capabilities and potential applications of such a setup. We also present Bend Invaders, one of the first arcade games on a curved interactive surface. Our demo intends to encourage the discussion about the future of multi-touch in desk environments.

[10] Madgets: actuating widgets on interactive tabletops Surface / Weiss, Malte / Schwarz, Florian / Jakubowski, Simon / Borchers, Jan Proceedings of the 2010 ACM Symposium on User Interface Software and Technology 2010-10-03 p.293-302

Keywords: actuation, multi-touch, tabletop interaction, tangible user interfaces, widgets

ACM Digital Library Link

Summary: We present a system for the actuation of tangible magnetic widgets (Madgets) on interactive tabletops. Our system combines electromagnetic actuation with fiber optic tracking to move and operate physical controls. The presented mechanism supports actuating complex tangibles that consist of multiple parts. A grid of optical fibers transmits marker positions past our actuation hardware to cameras below the table. We introduce a visual tracking algorithm that is able to detect objects and touches from the strongly sub-sampled video input of that grid. Six sample Madgets illustrate the capabilities of our approach, ranging from tangential movement and height actuation to inductive power transfer. Madgets combine the benefits of passive, untethered, and translucent tangibles with the ability to actuate them with multiple degrees of freedom.

[11] Bringing everyday applications to interactive surfaces Doctoral consortium / Weiss, Malte Proceedings of the 2010 ACM Symposium on User Interface Software and Technology 2010-10-03 p.375-378

Keywords: actuation, applications, curved surface, haptic feedback, interactive tabletops, tangible user interfaces

ACM Digital Library Link

Summary: This paper presents ongoing work that intends to simplify the introduction of everyday applications to interactive tabletops. SLAP Widgets bring tangible general-purpose widgets to tabletops while providing the flexibility of on-screen controls. Madgets maintain consistency between physical controls and their digital state. BendDesk represents our vision of a multi-touch enabled office environment. Our pattern language captures knowledge for the design of interactive tabletops. For each project, we describe its technical background, present the current state of research, and discuss future work.

[12] Engineering patterns for multi-touch interfaces Workshops / Luyten, Kris / Vanacken, Davy / Weiss, Malte / Borchers, Jan / Izadi, Shahram / Wigdor, Daniel ACM SIGCHI 2010 Symposium on Engineering Interactive Computing Systems 2010-06-19 p.365-366

Keywords: eics workshop, engineering patterns, multi-touch interfaces

ACM Digital Library Link

Summary: Multi-touch gained a lot of interest in the last couple of years and the increased availability of multi-touch enabled hardware boosted its development. However, the current diversity of hardware, toolkits, and tools for creating multi-touch interfaces has its downsides: there is only little reusable material and no generally accepted body of knowledge when it comes to the development of multi-touch interfaces. This workshop seeks a consensus on methods, approaches, toolkits, and tools that aid in the engineering of multi-touch interfaces and transcend the differences in available platforms. The patterns mentioned in the title indicate that we are aiming to create a reusable body of knowledge.

[13] EDITED BOOK Tabletops -- Horizontal Interactive Displays Human-Computer Interaction Series / Müller-Tomfelde, Christian 2010 n.18 p.456 Springer London

DOI: 10.1007/978-1-84996-113-4

ISBN: 978-1-84996-112-7 (print), 978-1-84996-113-4 (online)

Link to Digital Content at Springer

== Under Tabletops ==
Building Interactive Multi-touch Surfaces (27-49)
	+ Schöning, Johannes
	+ Hook, Jonathan
	+ Bartindale, Tom
	+ Schmidt, Dominik
	+ Oliver, Patrick
	+ et al
From Table-System to Tabletop: Integrating Technology into Interactive Surfaces (51-69)
	+ Kunz, Andreas
	+ Fjeld, Morten
High-Resolution Interactive Displays (71-100)
	+ Ashdown, Mark
	+ Tuddenham, Philip
	+ Robinson, Peter
Optical Design of Tabletop Displays and Interactive Applications (101-129)
	+ Kakehi, Yasuaki
	+ Naemura, Takeshi
Hand and Object Recognition on Liquid Crystal Displays (131-146)
	+ Koike, Hideki
	+ Sato, Toshiki
	+ Nishikawa, Wataru
	+ Fukuchi, Kentaro
== On and Above Tabletops ==
Augmenting Interactive Tabletops with Translucent Tangible Controls (149-170)
	+ Weiss, Malte
	+ Hollan, James D.
	+ Borchers, Jan
Active Tangible Interactions (171-187)
	+ Inami, Masahiko
	+ Sugimoto, Maki
	+ Thomas, Bruce H.
	+ Richter, Jan
Interaction on the Tabletop: Bringing the Physical to the Digital (189-221)
	+ Hilliges, Otmar
	+ Butz, Andreas
	+ Izadi, Shahram
	+ Wilson, Andrew D.
Supporting Atomic User Actions on the Table (223-247)
	+ Aliakseyeu, Dzmitry
	+ Subramanian, Sriram
	+ Alexander, Jason
Imprecision, Inaccuracy, and Frustration: The Tale of Touch Input (249-275)
	+ Benko, Hrvoje
	+ Wigdor, Daniel
On, Above, and Beyond: Taking Tabletops to the Third Dimension (277-299)
	+ Grossman, Tovi
	+ Wigdor, Daniel
== Around and Beyond Tabletops ==
Individual and Group Support in Tabletop Interaction Techniques (303-333)
	+ Nacenta, Miguel A.
	+ Pinelle, David
	+ Gutwin, Carl
	+ Mandryk, Regan
File System Access for Tabletop Interaction (335-355)
	+ Collins, Anthony
	+ Kay, Judy
Theory of Tabletop Territoriality (357-385)
	+ Scott, Stacey D.
	+ Carpendale, Sheelagh
Digital Tables for Collaborative Information Exploration (387-405)
	+ Isenberg, Petra
	+ Hinrichs, Uta
	+ Hancock, Mark
	+ Carpendale, Sheelagh
Coordination and Awareness in Remote Tabletop Collaboration (407-434)
	+ Tuddenham, Philip
	+ Robinson, Peter
Horizontal Interactive Surfaces in Distributed Assemblies (435-456)
	+ Müller-Tomfelde, Christian
	+ O'Hara, Kenton

[14] Handy feedback: connecting smart meters with mobile phones / Weiss, Markus / Mattern, Friedemann / Graml, Tobias / Staake, Thorsten / Fleisch, Elgar Proceedings of the 2009 International Conference on Mobile and Ubiquitous Multimedia 2009-11-22 p.15

ACM Digital Library Link

Summary: Reducing their energy consumption has become an important objective for many people. Consumption transparency and timely feedback are essential to support those who want to adjust their behavior in order to conserve energy. In this work, we propose an interactive system that provides instantaneous feedback concerning the energy usage on household and device level. For that, we used and extended the capabilities of a smart electricity meter, built a web-based API to enable interoperability with other applications, and developed a mobile phone interface that allows users to monitor, control, and measure the consumption of single appliances. Our system illustrates a way how usage barriers can be lowered and how high user involvement can be created. By providing users the electricity feedback needed -- in real-time and on device level -- the system allows for identifying the biggest energy guzzlers and helps users decrease their energy consumption.

[15] SLAP widgets: bridging the gap between virtual and physical controls on tabletops Tangibles on tables / Weiss, Malte / Wagner, Julie / Jansen, Yvonne / Jennings, Roger / Khoshabeh, Ramsin / Hollan, James D. / Borchers, Jan Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009-04-04 v.1 p.481-490

Keywords: augmented virtuality, dynamic relabeling, multi-touch, tabletop interaction, tangible user interfaces, toolkit, transparent widgets

ACM Digital Library Link

Summary: We present Silicone iLluminated Active Peripherals (SLAP), a system of tangible, translucent widgets for use on multitouch tabletops. SLAP Widgets are cast from silicone or made of acrylic, and include sliders, knobs, keyboards, and buttons. They add tactile feedback to multi-touch tables, improving input accuracy. Using rear projection, SLAP Widgets can be relabeled dynamically, providing inexpensive, battery-free, and untethered augmentations. Furthermore, SLAP combines the flexibility of virtual objects with physical affordances. We evaluate how SLAP Widgets influence the user experience on tabletops compared to virtual controls. Empirical studies show that SLAPWidgets are easy to use and outperform virtual controls significantly in terms of accuracy and overall interaction time.

[16] SLAP widgets: bridging the gap between virtual and physical controls on tabletops Interactivity: on the table / Weiss, Malte / Jennings, Roger / Khoshabeh, Ramsin / Borchers, Jan / Wagner, Julie / Jansen, Yvonne / Hollan, James D. Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009-04-04 v.2 p.3229-3234

Keywords: dynamic relabeling, multi-touch, tabletop interaction, tangible user interfaces, toolkit, transparent widgets

ACM Digital Library Link

Summary: We present Silicone iLluminated Active Peripherals (SLAP), a system of tangible, transparent widgets for use on vision-based multi-touch tabletops. SLAP Widgets are cast from silicone or made of acrylic and include sliders, knobs, keyboards, and keypads. They add tactile feedback to multi-touch tables and can be dynamically relabeled with rear projection. They are inexpensive, battery-free, and untethered widgets combining the flexibility of virtual objects with tangible affordances of physical objects. Our demonstration shows how SLAP Widgets can augment input on multi-touch tabletops with modest infrastructure costs.

[17] Saltate!: a sensor-based system to support dance beginners Spotlight on work in progress session 1 / Drobny, Dieter / Weiss, Malte / Borchers, Jan Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009-04-04 v.2 p.3943-3948

Keywords: dancing, motor skill learning, wearable computing, wireless sensor system

ACM Digital Library Link

Summary: We present Saltate!, a wireless prototype system to support beginners of ballroom dancing. Saltate! acquires data from force sensors mounted under the dancers' feet, detects steps, and compares their timing to the timing of beats in the music playing. If it detects mistakes, Saltate! emphasizes the beats in the music acoustically to help the dancing couple stay in sync with the music.

[18] Multi-user interaction in virtual audio spaces Spotlight on work in progress session 2 / Heller, Florian / Knott, Thomas / Weiss, Malte / Borchers, Jan Proceedings of ACM CHI 2009 Conference on Human Factors in Computing Systems 2009-04-04 v.2 p.4489-4494

Keywords: augmented reality, mobile computing, museum, spatial audio

ACM Digital Library Link

Summary: Audio guides are a common way to provide museum visitors with an opportunity for personalized, self-paced information retrieval. However, this personalization conflicts with some of the reasons many people go to museums, i.e., to socialize, to be with friends, and to discuss the exhibit as they experience it [1]. We developed an interactive museum experience based on audio augmented reality that lets the visitor interact with a virtual spatial audio soundscape. In this paper, we present some new interaction metaphors we use in the design of this audio space, as well as some techniques to generate a group experience within audio spaces.

[19] SLAPbook: tangible widgets on multi-touch tables in groupware environments Tabletop tangibles and augmented surfaces / Weiss, Malte / Wagner, Julie / Jennings, Roger / Jansen, Yvonne / Khoshabeh, Ramsin / Hollan, James D. / Borchers, Jan Proceedings of the 3rd International Conference on Tangible and Embedded Interaction 2009-02-18 p.297-300

ACM Digital Library Link

Summary: We present SLAPbook, an application using SLAP, translucent and tangible widgets for use on vision-based multi-touch tabletops in Single Display Groupware (SDG) environments. SLAP stands for Silicone ILluminated Active Peripherals and includes widgets such as sliders, knobs, keyboards, and buttons. The widgets and tactile feedback to multi-touch tables while simultaneously providing dynamic relabeling to tangible objects using the table's rear projection. SLAPbook provides multiple users the ability to add and edit content to a guestbook, browse other peoples' entries, and access personal data using a token-based personalization system. Interaction with the table takes place in the personal and public space so that users can make use of personal and shared controls to perform separate and coordinative actions.

[20] DRAGON: a direct manipulation interface for frame-accurate in-scene video navigation Improved Video Navigation and Capture / Karrer, Thorsten / Weiss, Malte / Lee, Eric / Borcers, Jan Proceedings of ACM CHI 2008 Conference on Human Factors in Computing Systems 2008-04-05 v.1 p.247-250

ACM Digital Library Link

Summary: We present DRAGON, a direct manipulation interaction technique for frame-accurate navigation in video scenes. This technique benefits tasks such as professional and amateur video editing, review of sports footage, and forensic analysis of video scenes. By directly dragging objects in the scene along their movement trajectory, DRAGON enables users to quickly and precisely navigate to a specific point in the video timeline where an object of interest is in a desired location. Examples include the specific frame where a sprinter crosses the finish line, or where a car passes a traffic light. Through a user study, we show that DRAGON significantly reduces task completion time for in-scene navigation tasks by an average of 19-42% compared to a standard timeline slider. Qualitative feedback from users is also positive, with multiple users indicating that the DRAGON interaction felt more natural than the traditional timeline slider for in-scene navigation.