@inproceedings {INPROC-2006-65,
    author = {Andreas Hub and Tim Hartter and Thomas Ertl},
    title = {{Interactive Tracking of Movable Objects for the Blind on the Basis of Environment Models and Perception-Oriented Object Recognition Methods}},
    booktitle = {Proceedings of the 8th ACM SIGACCESS Conference on Computers and Accessibility: ASSETS 2006; Portland, OR, USA, October 23-25, 2006},
    address = {New York,},
    publisher = {ACM Press},
    institution = {University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems), Germany},
    pages = {111--118},
    type = {Conference Paper},
    month = {October},
    year = {2006},
    isbn = {1-59593-290-9},
    keywords = {Indoor Navigation, Blind Users, Impaired Vision, Mobile Computing},
    language = {English},
    cr-category = {H.5.2 Information Interfaces and Presentation User Interfaces,
                   I.4.6 Image Processing and Computer Vision Segmentation,
                   I.4.7 Image Processing and Computer Vision Feature Measurement,
                   I.4.8 Image Processing and Computer Vision Scene Analysis,
                   K.3.1 Computer Uses in Education,
                   K.4.2 Computers and Society Social Issues},
    ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2006-65/INPROC-2006-65.pdf},
    contact = {andreas.hub@vis.uni-stuttgart.de, tim.hartter@gmx.de, thomas.ertl@vis.uni-stuttgart.de},
    department = {University of Stuttgart, Institute of Visualisation and Interactive Systems, Visualisation and Interactive Systems},
    abstract = {In previous work we have presented a prototype of an assistant system for the
      blind that can be used for self-localization and interactive object
      identification of static objects stored within 3D environment models. In this
      paper we present a new method for interactive tracking of various types of
      movable objects. The state of fixed movable objects, like doors, can be
      recognized by comparing the distance between sensor data and a 3D model. For
      the identification and model-based tracking of free movable objects, like
      chairs, we have developed an algorithm that is similar to human perception,
      based on shape and color comparisons to trained objects. Further, using a
      common face detection algorithm, our assistant system informs the user of the
      presence of people, and enables the localization of a real person based on
      interactive tracking of virtual models of humans.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2006-65&engl=1}
 }

@inproceedings {INPROC-2006-64,
    author = {Andreas Hub and Stefan Kombrink and Thomas Ertl},
    title = {{Tactile-Acoustical Navigation Assistant for Real and Virtual Explorations of the Environment.}},
    booktitle = {Proceedings of the 1st Multi-disciplinary Vision Rehabilitation \& Research Conference: ENVISION 06, 2006 September 21-24, Kansas City, MO, USA.},
    editor = {Linda Merill},
    address = {Kansas City},
    publisher = {Envision},
    institution = {University of Stuttgart : Collaborative Research Center SFB 627 (Nexus: World Models for Mobile Context-Based Systems), Germany},
    pages = {48--48},
    type = {Conference Paper},
    month = {September},
    year = {2006},
    keywords = {Indoor Navigation, Blind Users, Impaired Vision, Mobile Computing},
    language = {English},
    cr-category = {H.5.2 Information Interfaces and Presentation User Interfaces,
                   K.4.2 Computers and Society Social Issues},
    ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/INPROC-2006-64/INPROC-2006-64.pdf},
    contact = {andreas.hub@vis.uni-stuttgart.de, kombrisn@studi.informatik.uni-stuttgart.de, thomas.ertl@vis.uni-stuttgart.de},
    department = {University of Stuttgart, Institute of Visualisation and Interactive Systems, Visualisation and Interactive Systems},
    abstract = {We present a tactile-acoustical navigation assistant for real and virtual
      explorations of the environment.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=INPROC-2006-64&engl=1}
 }

@article {ART-2006-13,
    author = {Kurt Rothermel and Thomas Ertl and Fritsch Dieter and Paul J. K{\"u}hn and Bernhard Mitschang and Engelbert Westk{\"a}mper and Christian Becker and Dominique Dudkowski and Andreas Gutscher and Christian Hauser and Lamine Jendoubi and Daniela Nicklas and Steffen Volz and Matthias Wieland},
    title = {{SFB 627 – Umgebungsmodelle f{\"u}r mobile kontextbezogene Systeme}},
    journal = {Informatik - Forschung und Entwicklung},
    publisher = {Springer-Verlag},
    volume = {21},
    number = {1-2},
    pages = {105--113},
    type = {Article in Journal},
    month = {June},
    year = {2006},
    language = {German},
    cr-category = {C.2.4 Distributed Systems,
                   H.2.4 Database Management Systems,
                   H.2.8 Database Applications,
                   H.3 Information Storage and Retrieval},
    ee = {ftp://ftp.informatik.uni-stuttgart.de/pub/library/ncstrl.ustuttgart_fi/ART-2006-13/ART-2006-13.pdf},
    department = {University of Stuttgart, Institute of Parallel and Distributed Systems, Applications of Parallel and Distributed Systems;
                  Universit{\"a}t Stuttgart, Institut f{\"u}r Industrielle Fertigung und Fabrikbetrieb (IFF);
                  University of Stuttgart, Institute of Visualisation and Interactive Systems, Visualisation and Interactive Systems;
                  Universit{\"a}t Stuttgart, Institut f{\"u}r Photogrammetrie (ifp);
                  University of Stuttgart, Institute of Parallel and Distributed Systems, Distributed Systems;
                  Universit{\"a}t Stuttgart, Institut f{\"u}r Kommunikationsnetze und Rechnersysteme (IKR)},
    abstract = {Computersysteme, wie wir sie heute kennen, passen sich typischerweise nicht an
      den Benutzer und dessen Situation an. Erste Beispiele von Systemen, die durch
      den Bezug zur Realwelt den Kontext des Benutzers einbeziehen, sind
      Navigationssysteme, die unter Ber{\"u}cksichtigung der Position eines Benutzers und
      der Verkehrslage Richtungsanweisungen geben k{\"o}nnen. Damit innovative
      kontextbezogene Anwendungen m{\"o}glich werden, muss der Kontext, also der Zustand
      der Realwelt, durch Sensoren erfasst, in das Computersystem {\"u}bermittelt und
      dort in Form dynamischer Umgebungsmodelle den Anwendungen zur Verf{\"u}gung
      gestellt werden.},
    url = {http://www2.informatik.uni-stuttgart.de/cgi-bin/NCSTRL/NCSTRL_view.pl?id=ART-2006-13&engl=1}
 }