Projekte/Projects (ACM CHI, ACM ITS)

Glass Unlock: Enhancing Security of Smartphone Unlocking through Leveraging a Private Near-eye Display

Glass Unlock is a novel concept using smart glasses for smartphone unlocking, which is theoretically secure against smudge attacks, shoulder-surfing, and camera attacks. By introducing an additional temporary secret like the layout of digits that is only shown on the private near-eye display, attackers cannot make sense of the observed input on the almost empty phone screen.

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Pervasive Information through Constant Personal Projection: The Ambient Mobile Pervasive Display (AMP-D)

We introduce the concept of an Ambient Mobile Pervasive Display (AMP-D) which is a wearable projector system that constantly projects an ambient information dis- play in front of the user. The floor display provides serendipitous access to public and personal information. The display is combined with a projected display on the user’s hand, forming a continuous interaction space that is controlled by hand gestures. The AMP-D prototype illustrates the involved challenges concerning hardware, sensing, and visualization and shows several application examples.

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SurfacePhone: A Mobile Projection Device for Single- and Multiuser Everywhere Tabletop Interaction

In this work we present SurfacePhone; a novel configuration of a projector phone which aligns the projector to project onto a physical surface to allow ad-hoc tabletop-like interaction in a mobile setup. The projection is created behind the upright standing phone and is touch and gesture-enabled. Multiple projections can be merged to create shared spaces for multi-user collaboration.

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Penbook: Bringing Pen+Paper Interaction to a Tablet Device to Facilitate Paper-Based Workflows in the Hospital Domain

In many contexts, pen and paper are the ideal option for collecting information despite the pervasiveness of mobile devices. Reasons include the unconstrained nature of sketching or handwriting, as well as the tactility of moving a pen over a paper that supports very fine granular control of the pen. In particular in the context of hospitals, many writing and note taking tasks are still performed using pen and paper. This work presents the Penbook concept, detail specific applications in a hospital context, and present a prototype implementation of Penbook.

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Investigating Mid-Air Pointing Interaction for Projector Phones

Projector phones, mobile phones with built-in projectors, might significantly change the way we are going to use and interact with mobile phones. This project explores the potential of combining the mobile and the projected display and further the potential of the mid-air space between them for the first time. Results from two studies with several gesture pointing techniques indicate that interacting behind the phone yields the highest performance, albeit showing a twice as high error rate. Further they show that mobile applications benefit from the projection, e.g., by overcoming the fat-finger problem on touchscreens and increasing the visibility of small objects. 

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Interactive Phone Call

Smartphones provide large amounts of personal data, functionalities, but during phone calls the phone cannot be used much beyond voice communication and does not offer support for synchronous collaboration. This is owed to the fact that first, despite the availability of alternatives, the phone is typically held at one’s ear; and second that the small mobile screen is less suited to be used with existing collaboration software. This work presents a novel in-call collaboration system that leverages projector phones as they provide a large display that can be used while holding the phone to the ear to project an interactive interface anytime and anywhere.

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Lehre

Kurse

Essen

  • Pervasive Computing - SS 2010
  • Pervasive Case Studies - SS 2010
  • User Interface Engineering 1 - WS 2010/11
  • Pervasive Computing - SS 2011
  • User Interface Engineering 2 - WS 2011/12

Ulm

Abschlussarbeiten

  • Interactive Phone Call (Master Thesis 2011)
  • NaviBeam: Indoor Assistance and Navigation for Shopping Malls trough Projector Phones (Bachelor Thesis 2011)
  • Comparison of Pointing Techniques with Projector Phones (Bachelor Thesis 2011)
  • Traffic information by means of parasitic sensing - Using sensors, data mining and machine learning on ubiquitous smartphones to recognize people's mode of transportation (Bachelor Thesis 2012)
  • Development and Evaluation of Hand-Tracking and Hand-Projection above Multitouch-Tables for Interactive User Support (Bachelor Thesis 2012)
  • Development of Application Scenarios for Camera-based Finger Tracking on an iPhone with Integrated Pico-Projector. (Bachelor Thesis 2012)
  • cRing - Ein berührungsempfindlicher Fingerring zur Gestenbasierten Interaktion mit verschiedenen untereinander vernetzten Smart-Device. (Bachelor Thesis 2014)
  • Development and Evaluation of a Wrist-worn Projector-Camera System Enabling Augmented Reality. (Master Thesis 2014)
  • Extended Mobile Interaction. (Master Thesis 2014)
  • Smart, Smarter, Smartest? An Exploration of the Design Space and Development of Interactions Between Multiple Smart Gadgets (Bachelor Thesis 2014)

Bei Interesse an einem Thema für eine Abschlussarbeit im Bereich Augmented Reality, insbesondere mittels Personal Projection oder Head-Mounted-Displays, kontaktieren Sie mich bitte per Email um ein Treffen zu vereinbaren.

Veröffentlichungen/Publications


2017

24.
pdf
Dobbelstein, David; Winkler, Christian; Haas, Gabriel; Rukzio, Enrico
PocketThumb: a Wearable Dual-Sided Touch Interface for Cursor-based Control of Smart-Eyewear
Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT),
June 2017
23.
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Plaumann, Katrin; Weing, Matthias; Winkler, Christian; Müller, Michael; Rukzio, Enrico
Towards Accurate Cursorless Pointing: The Effects of Ocular Dominance and Handedness
Personal and Ubiquitous Computing,
2017
22.
pdf
Dobbelstein, David; Winkler, Christian; Haas, Gabriel; Rukzio, Enrico
Demonstration of PocketThumb: a Wearable Dual-Sided Touch Interface for Cursor-based Control of Smart-Eyewear
Proc. of UbiComp/ISWC 2017 Adjunct (Demo), ACM, 4 pages,
2017

2016

21.
pdf
Gugenheimer, Jan; Dobbelstein, David; Winkler, Christian; Haas, Gabriel; Rukzio, Enrico
FaceTouch: Enabling Touch Interaction in Display Fixed UIs for Mobile Virtual Reality
In Proceedings of UIST 2016 (ACM Symposium on User Interface Software and Technology),
October 2016
20.
pdf
Gugenheimer, Jan; Dobbelstein, David; Winkler, Christian; Haas, Gabriel; Rukzio, Enrico
FaceTouch: Touch Interaction for Mobile Virtual Reality
In Adj. Proc. (Demo) of CHI 2016 (SIGCHI Conference on Human Factors in Computing Systems),
May 2016
19.
pdf
Winkler, Christian
Nomadic projection within reach - overcoming deficiencies in nomadic information management through mobile projected interfaces
Dissertation
University of Ulm,
2016

2015

18.
pdf
Gugenheimer, Jan; Knierim, Pascal; Winkler, Christian; Seifert, Julian; Rukzio, Enrico
UbiBeam: Exploring the Interaction Space for Home Deployed Projector-Camera Systems
In Proc. of Interact 2015 (IFIP TC15 Conference on Human-Computer Interaction),
October 2015
17.
pdf
Winkler, Christian; Gugenheimer, Jan; De Luca, Alexander; Haas, Gabriel; Speidel, Philipp; Dobbelstein, David; Rukzio, Enrico
Glass Unlock: Enhancing Security of Smartphone Unlocking through Leveraging a Private Near-eye Display
Proc. of CHI 2015 (SIGCHI Conference on Human Factors in Computing Systems)
April 2015

2014

16.
pdf
Seifert, Julian; Boring, Sebastian; Winkler, Christian; Schaub, Florian; Schwab, Fabian; Herrdum, Steffen; Maier, Fabian; Mayer, Daniel; Rukzio, Enrico
Hover Pad: Interacting with Autonomous and Self-Actuated Displays in Space
Proceedings of ACM Symposium on User Interface Software and Technology (UIST)
October 2014
15.
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Schaub, Florian; Könings, Bastian; Lang, Peter; Wiedersheim, Björn; Winkler, Christian; Weber, Michael
PriCal: Context-adaptive Privacy in Ambient Calendar Displays
Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp '14) , page 499--510.
Publisher: ACM, New York, NY, USA
October 2014
ISBN: 978-1-4503-2968-2
14.
pdf
Winkler, Christian; Rukzio, Enrico
Projizierte tischbasierte Benutzungsschnittstellen
Informatik-Spektrum, :1-5
May 2014
13.
pdf
Winkler, Christian; Seifert, Julian; Dobbelstein, David; Rukzio, Enrico
Pervasive Information through Constant Personal Projection: The Ambient Mobile Pervasive Display (AMP-D)
Proc. of CHI 2014 (SIGCHI Conference on Human Factors in Computing Systems), ACM, 10 pages, Honorable Mention Award
April 2014
12.
pdf
Winkler, Christian; Loechtefeld, Markus; Dobbelstein, David; Krueger, Antonio; Rukzio, Enrico
SurfacePhone: A Mobile Projection Device for Single- and Multiuser Everywhere Tabletop Interaction
Proc. of CHI 2014 (SIGCHI Conference on Human Factors in Computing Systems), ACM, 10 pages
April 2014
11.
pdf
Winkler, Christian
Peripheral Interaction On-The-Go
Workshop on Peripheral Interaction: Shaping the Research and Design Space at CHI 2014
April 2014

2013

10.
pdf
Derthick, Katie; Scott, James; Villar, Nicolas; Winkler, Christian
Exploring smartphone-based web user interfaces for appliances
Proc. of Mobile HCI'13 (15th international conference on Human-computer interaction with mobile devices and services), ACM, 10 pages,
2013
9.
pdf
Winkler, Christian; Seifert, Julian; Reinartz, Christian; Krahmer, Pascal; Rukzio, Enrico
Penbook: Bringing Pen+Paper Interaction to a Tablet Device to Facilitate Paper-Based Workflows in the Hospital Domain
Proc. of ITS 2013 (ACM International Conference on Interactive Tabletops and Surfaces), ACM, 4 pages [Winner of Best Note Award],
2013

2012

8.
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Villar, Nicolas; Scott, James; Hodges, Stephen; Winkler, Christian
Customizing appliances
Patent
April 2012
7.
pdf
Winkler, Christian; Pfeuffer, Ken; Rukzio, Enrico
Investigating mid-air pointing interaction for projector phones.
Proc. of ITS 2012 (ACM International Conference on Interactive Tabletops and Surfaces), ACM, 10 pages.
2012
6.
pdf
Winkler, Christian; Hutflesz, Patrick; Holzmann, Clemens; Rukzio, Enrico
Wall Play: a novel wall/floor interaction concept for mobile projected gaming.
In Proc. of Mobile HCI 2012 (14th International Conference on Human-Computer Interaction with Mobile Devices and Services), ACM, 4 pages.
2012

2011

5.
pdf
Winkler, Christian; Reinartz, Christian; Nowacka, Diana; Rukzio, Enrico
Interactive phone call: synchronous remote collaboration and projected interactive surfaces.
In Proc. of ITS 2011 (ACM International Conference on Interactive Tabletops and Surfaces), ACM, 10 pages.
2011
4.
pdf
Winkler, C.; Broscheit, M.; Rukzio, E.
NaviBeam: Indoor Assistance and Navigation for Shopping Malls through Projector Phones
In Proc. of Workshop on Mobile and Personal Projection (at CHI 2011).
2011
3.
pdf
Valderrama Bahamondez, Elba del Carmen; Winkler, Christian; Schmidt, Albrecht
Utilizing multimedia capabilities of mobile phones to support teaching in schools in rural panama.
In Proc. of CHI 2011 (Conference on Human Factors in Computing Systems), ACM, 10 pages.
2011

2010

2.
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Shirazi, A.S.; Winkler, C.; Schmidt, A.
SENSE-SATION: An extensible platform for integration of phones into the Web
Internet of Things (IOT), 2010 , page 1--8.
2010

2009

1.
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Shirazi, Alireza Sahami; Winkler, Christian; Schmidt, Albrecht
Flashlight interaction: a study on mobile phone interaction techniques with large displays
Proceedings of the 11th International Conference on Human-Computer Interaction with Mobile Devices and Services of MobileHCI '09 , page 93:1--93:2.
Publisher: ACM, New York, NY, USA
2009
ISBN: 978-1-60558-281-8
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Scientific Activities

Memberships

  • Member of the "Association for Computing Machinery" (ACM)
  • Member of the "Institute of Electrical and Electronics Engineers" (IEEE)

Program Committee Member:

  • Mensch&Computer 2015
  • ACM MUM 2013
  • IEEE IOT 2014, 2015

Academic Internships:

  • Microsoft Research Cambridge (2011)

Reviewer for:

  • IEEE Pervasive Computing Magazine
  • IEEE Internet Computing Magazine
  • CHI 2012, 2013, 2014, 2015
  • Mobile HCI 2011, 2012, 2013, 2014
  • UIST 2011
  • ITS 2011
  • IOT 2010, 2014, 2015
  • MUM 2012, 2013
  • AML 2012
  • AVI 2013
  • SUI 2014
  • Siggraph ASIA 2014

Conferences

  • CHI 2015 (Seoul)
  • CHI 2014 (Toronto)
  • CHI 2013 (Paris)
  • MUM 2012 (ULM)
  • ITS 2012 (Cambridge, Boston, MA)
  • Mobile HCI 2012 (San Francisco)
  • ITS 2011 (Kobe)
  • Personal Projection Workshop (Oulu)
  • Mobile HCI 2011 (Stockholm)
  • CHI 2011 (Vancouver)
  • IOT 2010 (Tokyo)
  • UbiComp 2010 (Copenhagen)
  • Mobile HCI 2010 (Lissabon)
  • Mobile HCI 2009 (Bonn)

Dr. Christian Winkler

Funktion

ehem. wissenschaftlicher Mitarbeiter