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Neha Laumas USC Feb 2009

Accessible Contextual Information for Urban Orientation Jason Stewart, Sara Bauman, Michelle Escobar, Jakob Hilden, Kumud Bihani, Mark W. Newman. Neha Laumas USC Feb 2009. Agenda. Introduce Talking Points

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Neha Laumas USC Feb 2009

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  1. Accessible Contextual Information for Urban Orientation Jason Stewart, Sara Bauman, Michelle Escobar, Jakob Hilden, Kumud Bihani, Mark W. Newman Neha Laumas USC Feb 2009

  2. Agenda • Introduce Talking Points • Accessible Contextual Information for Urban Orientation • Determining requirements for Talking Points • Design goals for Talking Points • The Talking Points Eco-system and its key components • Software/Hardware development of components • How does Talking Points work? • Critique

  3. What is Talking Points? • An Urban Orientation System • Provides contextual information about various Points of Interest (POI) along a user's route. • Targeted towards the visually impaired but can also be used by the sighted • Accessible by both a graphical and a speech user interface. • Uses Community generated content • Continuously updated by Talking Point Community • Community relevant

  4. Determining what Talking Points should do… • Information gathering using the “Wizard of Oz” field simulation technique • Having users interact with a seemingly autonomous system that is operated by unseen individuals http://www.youtube.com/watch?v=PPBsCwjSYgMhttp://www.youtube.com/watch?v=BzkAkszBL9o • Conducted Observation interviews for sighted and unsighted to understand attention, routing and prioritizing. • Gathered qualitative information from a focus group of sighted individuals. Web links reference: http://talking-points.org/2008/02/08/wizard-of-oz-study/

  5. Goals for Talking Points • Both sighted and non sighted should benefit. • Dynamic Data Content e.g. New location. • Take special needs of the visually impaired into consideration. • Use of an unobtrusive mobile device • Use a positional technology which does not lose coverage in urban or indoor areas • Provide personalized information with the ability to filter content • Iterative, 1st identify a few points regarding a point of interest and then add detail.

  6. The Talking Points Ecosystem Reference: "Accessible contextual information for urban orientation", Stewart, Baumann, Escobar , Hilden, Bihani, Newman, International Conference on Ubiquitous Computing, 2008

  7. The Heart and Lungs of Talking Points • Social online database that facilitates user generated content creation and storage of the POI information • Mobile device that detects POIs and presents the contextual information through either a Speech User Interface (SUI) or a Graphical User Interface (GUI)

  8. Design of Talking Points • Content Server • Website allows users to contribute information. • Users are able to create different types of information. • Updates possible at any time • Only creator can change “POI name” and “POI type” • Client software/Hardware • The software was written in JAVA • OQO Model 02 mobile computer, a palm-sized full performance PC with Bluetooth capability. Bluetooth was chosen dues to its low cost, range detection, and degree of position detection precision.

  9. Talking Points -How it all works! University of Michigan student Jason Stewart hooks up to the Talking Points system in Ann Arbor. Stewart is part of a team who developed the system aimed at providing both visually impaired and non-visually impaired people with information on points of interest as one navigates through a city. Reference: http://www.mlive.com/living/ann-arbor/index.ssf/2008/10/university_of_michigan_student_1.html

  10. Critique • How is the initial Content Server database set up? • In case the system completely relies on contributors to set up the online database it might take a while till the product can be in use. • What is the validity of the data being fed in by the contributors? • In case of inaccuracies it might completely disorient the visually impaired. • Responsibility for installation of Bluetooth tags at POIs is not defined

  11. Trivia…. • Students used off-the-shelf products to create Talking Points • Talking Points is believed to be the first system operable with voice commands to use Bluetooth, help both sighted and visually-impaired people, and incorporate community-generated feedback through a Web site. • Talking points originally used RFID but later changed to the more popular Bluetooth because of cost of RFID readers. • Developers of the current prototype software are engineering undergraduates Travis (Donggun) Yoo and Josh Rychlinksi, and recent engineering graduate Peter Kretschman

  12. References • http://talking-points.org/wp-content/presentation.pdf • http://www.mlive.com/living/ann-arbor/index.ssf/2008/10/university_of_michigan_student_1.html • http://talking-points.org/ • http://chronicle.com/wiredcampus/article/3387/u-of-michigan-students-use-bluetooth-to-help-blind-and-seeing-pedestrians-roam-cities • http://www.ns.umich.edu/htdocs/releases/story.php?id=6737

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