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Projects of Media Systems
Augmented Reality
PlayReal
Involved People: Martin Triebel, Arnd Oberländer, Sebastian Thiele
Supervisor: Prof. Dr. Oliver Bimber
Abstract: This project investigates the potential of projector-camera systems as components for future game consoles. The real environment is automatically scanned in, scene elements are clustered and integrated into the game logic. Virtual game figures can then be projected stereoscopically to enable an immersive or augmented game experience.
Notes: In cooperation with Shanghai Jiao Tong University, China
Web: http://www.uni-weimar.de/medien/AR
Pictogram Room

Involved People: Dipl.-Med.Sys.Wiss. Chrystoph Toll, MS CS Jesús Gimeno Sancho, David Exner
Supervisor: Prof. Dr. Oliver Bimber
Abstract: The pictogram room project intends to create an educational tool based on augmented reality technologies especially designed for autistic people. Among other things, the educational objectives are understanding the pictograms, developing a concept of oneself, the corporal diagram, imitation of certain actions like making a phone call and understanding cause-effect relations of a social nature. Although the intermediate objectives of the project involved creating a high-cost system with the aim of evaluating the different technological possibilities, the final objective is to create a new tool based on low-cost devices (hardware) with the aim of making it accessible to everyone.
Notes: In cooperation with University of Valencia, Spain, funded by Orange Foundation (France Telecom)
Web: http://www.fundacionorange.es/areas/22_proyectos/proy_230.asp
Mobile Phone Enabled Museum Guidance with Adaptive Classification

Involved People: Dipl.-Med.Sys.Wiss. Erich Bruns
Supervisor: Prof. Dr. Oliver Bimber
Abstract: The project “PhoneGuide” presents ongoing research results of the Bauhaus-University Weimar in the area of local image recognition on mobile devices. Visitors in a museum can use their mobile phones for recognizing exhibits by taking a photograph. Dependent on the classified object, multimedia information is displayed (text, audio, video) on the device. Beside the image recognition on the mobile device, wireless sensors are distributed through the museum. They are applied for determining the location of the users as well as for recording the current illumination state. This information can be used to ensure an optimized classification process.
Notes: Funded by Stiftung für Technologie, Innovation und Forschung Thueringen
Web: http://www.uni-weimar.de/medien/ar/PhoneGuide/
Adaptive Classification through Ad Hoc Phone-to-Phone Communication
Involved People: Michael Rang, Dipl.-Med.Sys.Wiss. Erich Bruns
Supervisor: Prof. Dr. Oliver Bimber
Abstract: To increase the performance of the classification process local classification results are evaluated by the users and transferred to surrounding mobile devices. For this, an ad-hoc network is established between the mobile devices to ensure data transfers. The continuous incoming data is applied for adapting the local classification process and consequently to improve the recognition rate.
Notes: Funded by Stiftung für Technologie, Innovation und Forschung Thueringen (STIFT)
Web: http://www.uni-weimar.de/medien/ar/PhoneGuide/
4D Barcodes
Involved People: Tobias Langlotz
Supervisor: Prof. Dr. Oliver Bimber
Abstract: 4D Barcodes presents a novel technique for optical data transfer between public displays and mobile devices based on unsynchronized 4D barcodes. Our approach maximizes the data throughput and the robustness of the barcode recognition, while no immediate synchronization exists. Although the transfer rate is much smaller than it can be achieved with electromagnetic techniques (e.g., Bluetooth or WiFi), we envision to apply such a technique wherever no direct connection is available.
Notes: Funded by Stiftung für Technologie, Innovation und Forschung Thueringen (STIFT)
Web: http://www.uni-weimar.de/medien/ar/PhoneGuide/
High-Dynamic Range Visualization

Involved People: Dr. Daisuke Iwai
Supervisor: Prof. Dr. Oliver Bimber
Abstract:
We present a simple way for near-field high-dynamic range visualization. We believe that our approach has potential in domains that operate with high quality image content, like radiology and other medical fields, or astronomy.
Notes: In cooperation with Osaka University, Japan
Web: http://www.uni-weimar.de/medien/AR
Dynamic Bluescreens
Involved People: Dipl.-Med.Sys.Wiss. Anselm Grundhöfer, B.Sc.-Med.Sys.Wiss. Man-Man Fu
Supervisor: Prof. Dr. Oliver Bimber
Abstract: We synchronize cameras and analog lighting with high speed projectors. Radiometric compensation allows displaying flexible blue screens on arbitrary real world surfaces. A fast temporal multiplexing of coded projection and flash illumination enables professional chroma keying and camera tracking results for non-studio movie sets.
Notes: Funded by Deutsche Forschungsgemeinschaft (DFG)
Web: http://www.uni-weimar.de/medien/ar/AugmentedStudio
Coded Aperture Projection
Involved People: Max Grosse, Dipl.-Med.Sys.Wiss. Anselm Grundhöfer
Supervisor: Prof. Dr. Oliver Bimber
Abstract:
We integrate coded apertures into off-the-shelf projectors to increase their focal depth. The regional defocus of the projection on the surface is measured. The projection is then deconvolved with locally scaled apertures codes. This leads to significantly better results than deconvolving with Gaussians when regular apertures are used.
Notes: Funded by Deutsche Forschungsgemeinschaft (DFG)
Web: http://www.uni-weimar.de/medien/ar/sARc/
sARc: Spatial Augmented Reality for Architecture
Involved People: Dipl. Ing. Christian Tonn, Dipl.-Med.Sys.Wiss. Anselm Grundhöfer, Sven Schneider, Alexander Schiewe, Ferry Häntsch, Martin Triebel, Sebastian Thiele
Supervisor: Prof. Dr. Oliver Bimber, Prof. Dr. Frank Petzold
Abstract: The demonstration of the research project "Spatial-Augmented Reality for Architecture" uses new Augmented Reality technologies to support the planning and presentation of architecture. Moreover a geometry-corrected projection with a variable number of projectors which overlays the real architectural space with a virtual model is presented. Using laser pointer tracking, the interactive sampling of surfaces with colours, materials, doors and windows is controlled and demonstrated.
Notes: Funded by Deutsche Forschungsgemeinschaft (DFG)
Web: http://www.uni-weimar.de/medien/ar/sARc/
Mobile Augmented Reality for Automotive Applications
Involved People: Stefanie Zollmann
Supervisor: Prof. Dr. Oliver Bimber, Prof. Dieter Schmalstieg
Abstract: Since automotive applications growing more and more complex, the development of new assistance techniques for engineers and technicians becomes essential. By the presentation of additional information, the performance quality of several automotive tasks can be increased and execution times can be reduced. In this work the options given by the support of automotive tasks using Mobile Augmented Reality will be analyzed.
Notes: In cooperation with Daimler AG
Sub-Object recognition on Mobile Phones

Involved People: Benjamin Brombach, Dipl.-Med.Sys.Wiss. Erich Bruns
Supervisor: Prof. Dr. Oliver Bimber
Abstract: Many exhibits in museums are protected against environmental influences or human curiosity by placing them into showcases or behind other barriers. In these cases, visitors can not take photographs of individual objects without capturing others simultaneously. To overcome this, our framework supports the identification of multiple objects (sub-objects) in one image by utilizing spatial relationships.
Notes: Funded by Stiftung für Technologie, Innovation und Forschung Thueringen (STIFT)
Web: http://www.uni-weimar.de/medien/ar/PhoneGuide/
God-like Interaction

Involved People: MS CS Aaron Stafford
Supervisor: Prof. Bruce H. Thomas
Abstract: God-like interaction is a framework for communication between a tabletop display expert and mixed reality (outdoor augmented reality or virtual reality) worker. Using a specially designed tabletop display capable of 3D reconstruction, the expert can use their hands and physical props to provide navigational and situational information to remote workers. The remote workers see the hands and props as complete 3D reconstructions geospatially registered to the mixed reality world.
Notes: This project is presented by University of South Australia
Web: http://wcl.ml.unisa.edu.au/~staffora/index.php/Main_Page
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Computer Supported Cooperative Work
PRIMILocaFaces

Involved People: Mike Drexel, Jan Hanak, Jonas Pencke, Benjamin Zeller
Supervisor: Prof. Dr. Tom Gross, Dipl.-Inf. (FH) Mirko Fetter
Abstract: In PRIMILocaFaces the PRIMI series research platform for instant messaging has been extended with a concept to enable the selective disclosure of personal and context-related information based on different levels of trust. This work was based on three user studies that looked into people’s availability on certain places and activities; how people name visited places; and the mapping between the granularity of disclosed personal information towards different categories of recipients.
Web: http://cmlab.de/tiki-index.php?page=RP_PRIMILF
PRIMIReMine
Involved People: Maike Lorenz, Konstantin Silin
Supervisor: Prof. Dr. Tom Gross, Dipl.-Inf. (FH) Mirko Fetter
Abstract: The growing number and intensity of online-mediated contacts requires novel approaches for contact and information management. Personal instant messengers usually offer only a small variety of privacy features. The PRIMI instant messaging client offers a foundation for development of various features including privacy management. PRIMIReMine builds on this foundation to implement both a system of location-based dynamic privacy settings management and an infrastructure to implement such management systems with more ease.
Web: http://www.cmlab.de/tiki-index.php?page=RP_PRIMIREMINE
CollaborationBus: Aqua -- Synergies in Finding and Editing Ubiquitous Computing Configurations
Involved People: Maximilian Schirmer
Supervisor: Prof. Dr. Tom Gross
Abstract: CollaborationBus: Aqua is a graphical Editor that eases the configuration and modelling of ubiquitous environments. It enables users to visually link components of the Sens-ation platform and so supports the easy configuration of scenarios and prototypes. Further the editor mediates synergies that naturally emerge in the cooperative process of creating such configurations.
Web: http://cmlab.de/tiki-index.php?page=BT_Maximilian_Schirmer
Technological Concepts and User Observation of Privacy in a Mediaspace
Involved People: Christoph Beckmann
Supervisor: Prof. Dr. Tom Gross
Abstract: Asynchronous work times and separate work places are two challenges when talking about CSCW. The developed mediaspace supports users in their cooperative work between two laboratories. Sens-ation as a sensor-based platform is used as infrastructure.
User observations and interviews were done to evaluate the behaviour of users concerning their privacy settings. The obtained results will lead to special knowledge on how privacy impacts information disclosure in cooperative environments and will point out necessary aspects for future mediaspaces.
Web: http://cmlab.de/tiki-index.php?page=BT_Christoph_Beckmann
cueTable. Interaction with a multi-touch screen device.
Involved People: Sascha Liebsch
Supervisor: Prof. Dr. Tom Gross, Dipl.-Inf. (FH) Mirko Fetter, Dipl.-Inform. Thilo Paul-Stueve
Abstract: This project deals with the assembly of a multi-touch screen device and required software as well as the exploration of new ways for interaction with this setup. This includes human-computer-interaction as well as interaction inside groups of people. "Multi-touch" means the overcoming of the mouse pointer principle - not only one, but multiple fingers of one or more users can be simultaneously used for interaction.
Web: http://cmlab.de/tiki-index.php?page=BT_Sascha_Liebsch
PILS - Presence in Learning Spaces
Involved People: Martin Klusmann, Andreas Thenn
Supervisor: Prof. Dr. Tom Gross, Dipl.-Inf. (FH) Mirko Fetter
Abstract: Presence in Learning Spaces (PILS), developed as part of the EU project ALS, is an instant messaging tool, adjusted to fit the special needs of an e-learning environment. The learning user gets an easy way to communicate with other participants via text, audio or video chat in their attended courses. Users can specify special online statuses within every course, identifying experts or help seeking participants. This and an explicit display if a learner already has an open communication improves a purposeful contact approach and helps to optimize the users knowledge exchange.
Web: http://cmlab.de/tiki-index.php?page=EU_ALS
Sens-ation Mobile
Involved People: Eric Behrens, Jonathan Simon
Supervisor: Prof. Dr. Tom Gross, Dipl.-Inform. Thilo Paul-Stueve
Abstract: Sens-ation Mobile is the sensor platform Sens-ation, which was developed in the last semesters, ported to mobile devices, whereby the ability to let the portable (Sens-ation Mobile) and localised (Sens-ation) platforms communicate with each other is supported. Sens-ation Mobile provides access to new sensors, data processing and triggering of actuators location-independently on the mobile device itself (e.g., mobile phone). For example, the mobile application enables Sens-ation to be extended by mobile sensors, such as a GPS Bluetooth adapter to be used for logging geographical coordinates.
Web: http://cmlab.de/tiki-index.php?page=RP_SENSMOBILE
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Media Security
Developing a Cryptographic Library in Ada
Involved People: Marcel Heunemann, Thomas Knapke, Marcel Pfotenhauer,Sebastian Schmolke, Jakob Wenzel
Supervisor: Ewan Fleischmann
Abstract: The Students enhanced an a cryptographic library, written in Ada. The new developements include X.509 certificates, elliptic curves cryptosystems, an implementation of SFTP and many optimisations.
Notes: The Media Security Lab has been supported by the foundation for Technology, Innovation and Research Thuringia (STIFT)
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Systems of Virtual Reality
Real-Time Ray Tracing auf GPUs

Involved People: Markus Hartleb, Robert Dünger, Thomas Klemmer, Martin Reichl, Alexander Schiewe
Supervisor: Dipl.-Inf. Christopher Lux, Prof. Dr. Bernd Fröhlich
Abstract: Lately high quality real-time ray tracing on modern graphics processing units (GPU) has become feasible. The central objective of this project is the prototypical implementation of ray tracing acceleration approaches for interactive scenes.
Web: http://www.uni-weimar.de/cms/medien/vr/teaching/ws-200708/forschungsprojekt-real-time-ray-tracing-auf-gpus.html
Videogame Classics Revisited
Involved People: Franz Mueller, Cresa Constantinescu, Stefanie Moeller
Supervisor: Prof. Dr. Bernd Fröhlich, Dipl.-Medsys.wiss. André Kunert, Dipl.-Des. Alexander Kulik
Abstract: Pong, Breakout, Tetris, Snake ... almost everybody knows them and many still play what we call videogame classics. This project is about their revival with the possibilities of actual human computer interface technologies. These incorporate well established VR-technologies like stereo displays and head tracking as well as recently developed display technologies, interaction techniques and -devices.
Web: http://www.uni-weimar.de/cms/medien/vr/teaching/ws-200708/videogame-classics-revisited.html
Navigator 2.0
Involved People: Susanne Guenther, Sascha Gaertner
Supervisor: Prof. Dr. Bernd Fröhlich, Dipl.-Inf. (FH) Jan Hochstrate, Dipl.-Des. Alexander Kulik
Abstract: This project focusses on the development and evaluation of interaction techniques for novel 3D input devices in the context of computer games and 3D modeling programs.
Web: http://www.uni-weimar.de/cms/medien/vr/teaching/ss-2007/forschungs-laborprojekt-navigator.html
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Content Management and Web Technologien
Multi Document Person Resolution - Spock Challenge 2007
Involved People: Steffen Becker, Christof Bräutigam, Tino Rüb, Hagen-Christian Tönnies
Supervisor: Prof. Dr. Benno Stein, Dr. Sven Meyer zu Eissen
Abstract: The mapping between people and their names is not one-to-one. When searching the World Wide Web for a person, one is immediately faced with this problem: search results contain Web pages of different individuals having the same name. The solution to this mapping problem was developed in a research project in summer 2007 and has been awarded the winner of the Spock Challenge.
Web: http://www.uni-weimar.de/cms/index.php?id=9148
Netspeak
Involved People: Martin Trenkmann
Supervisor: Martin Potthast, Prof. Dr. Benno Stein
Abstract: To write in a foreign language is a difficult task, even for experienced authors. One time the right word is missing, the other time it is unclear which wording is common in the foreign language. Netspeak is a Web service which assists authors to solve these and other related problems. The author can formulate a query using wildcards to describe, for instance, cases in which it is unclear which word comes next in a phrase, or which of the possible synonyms of a word would be the best choice.
Picapica.net - Software for plagiarism analysis of text and sourcecode
Involved People: Alexander Kümmel, Michael Völske, Steffen Becker, Fabian Loose
Supervisor: Prof. Dr. Benno Stein, Dr. Sven Meyer zu Eissen, Dipl. Inform. Martin Potthast
Abstract: Plagiarism is the practice of using other's material or creative work without adequate acknowledgement. Our goal is the development of a software system for automatic analysis of suspicious documents to detect potentially plagiarized parts. These documents can be text documents of any kind as well as program source code. A flexible Web frontend allows global access to the software. The user can upload a document and then receive a comparison of his document's suspicious passages with references from the Web.
Web: http://picapica.net/
Genre-based Web-Search (WEGA)
Involved People: Martin Kausche, David Wiesner, Hagen-Christian Tönnies
Supervisor: Prof. Dr. Benno Stein, Dr. Sven Meyer zu Eissen, Nedim Lipka, Maik Anderka
Abstract:
People who search the World Wide Web usually have a clear conception: they know what they are searching for, and they know of which form or type the desired documents should be. The former aspect relates to the content of a found document (= topic), the latter to the presentation of its content and the intended target group.
The WEGA project addresses this subject: We developed a Firefox-Add-On that classifies search results according to genre. Currently, we support the genres link list, article, private homepage, online shop, download site, discussion page, commercial homepage, and help page. A prototype is presented at the Open Lab Night event.
Web: http://www.uni-weimar.de/medien/webis/research/wega
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Networked Media
iRadio
Involved People: Andreas Eiselt
Supervisor: Dr. Günther Schatter
Abstract: Radio receivers have not changed much in the last decades, they can find channels but not desired content.
So we try to combine semantic audio, metadata, music information retrieval, speech and gestural control, WWW etc. for a receiver of the future.
Web: http://www.uni-weimar.de/cms/?id=8479
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Psychophysiology and Perception
Perceiving AR

Involved People: Michael Pannier, Henry Rahn, Dipl.-Med.Sys.Wiss. Mario H. Urbina
Supervisor: Prof. Dr. Anke Huckauf
Abstract: Video and optical see-through (VST / OST) devices augment real situations with additional information. Our aim is to determine critical features for OST-devices affecting their usability.We started our investigation by assessing the visual quality of a Nomad OST and compared it to a usual CRT-screen by means of a visual search task. Results and their implications are to be presented.
Notes: The investigations are supported by Fraunhofer IFF, Magdeburg. The display is provided by Volkswagen AG.
Web: http://www.uni-weimar.de/cms/medien/psychophysiologie-und-wahrnehmung/home.html
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Computer Graphics
Special effects for artist friendly modeling environments
Involved People: Felix Weißig, Martin Koske, Mike Becker, Chen Jiayin
Supervisor: Prof. Dr. Charles A. Wüthrich, Dipl. Mediensys.-wiss. Chrystoph Toll
Abstract: The project aim is to develop a system for modeling and applying materials and special effects to virtual objects within a artist friendly modeling software. A prototype of the software system is shown. The main focus of the project is on computer graphics, real time rendering, non-photorealistic rendering, but also user interfaces, geometric modeling and input metaphors.
Notes: The project is carried out in cooperation with the ABS CBN Foundation in Manila, Philippines.
Web: http://www.uni-weimar.de/medien/cg/
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