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Experiments of Entertainment Application of a Virtual World System for Mobile Phones

Experiments of Entertainment Application of a Virtual World System for Mobile Phones. Hiroyuki Tarumi (Kagawa Univ. & SpaceTag, Inc.) Kasumi Nishihara Kazuya Matsubara Yuuki Mizukubo Shouji Nishimoto (Kagawa Univ.) Fusako Kusunoki (Tama Art University).

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Experiments of Entertainment Application of a Virtual World System for Mobile Phones

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  1. Experiments of Entertainment Application of a Virtual World System for Mobile Phones Hiroyuki Tarumi (Kagawa Univ. & SpaceTag, Inc.) Kasumi Nishihara Kazuya Matsubara Yuuki Mizukubo Shouji Nishimoto (Kagawa Univ.) Fusako Kusunoki (Tama Art University)

  2. Virtual City1(Fantasy World) overlay Virtual City2 (Historical World) Real World

  3. Virtual Objects Virtual Creatures Virtual Architectural Objects Designed With LightWave 3D

  4. Our Strategy Consumer Requirements • Popular • Low Cost • Light Weight GPS-phones No extra devices Solution # of Users: 14M or more Cost: 10～20 k yen ($95～190) Weight: 120g

  5. GPS-phones in Japan • Supported by most of "au" (KDDI) phones and some of other phones. • More than 14Million Terminals ("au"). • Some of "au" phones support E-Compass & Brew platform, as well. • Flat rate for internet access (optional) • All companies will provide GPS in future.

  6. Virtual City: User's View ConceptualModel A Virtual Building A Real Building Terminal Virtual Objects Shown on a GPS-phone

  7. Two Implementations • Browser-Based • Using only Built-in Browsers • Images are Generated at the Server • Manual "Pull" Service • Brew-Based • A Brew Application is Installed on the Phone • Images are Generated at the Terminal • Automatic "Pull" Service

  8. BrowserBasedSystem

  9. What is an Active Agent? • Virtual creatures should be controlled with event-driven or autonomous mechanisms • Rule-based scenario: Events and Actions • Scenario Description Language: Q (Scheme-based Lang. developed at Kyoto University.)

  10. Interaction with a Virtual Creature

  11. Evaluation Session （Jan. 2005） • Gaming (and Sightseeing Support) Application "MOMOTARO" • MOMOTARO is one of the most popular old heroes in Japanese old tales. • He defeated ogre (= pirates) and brought peace. • The base island of monsters is called "ONIGASHIMA", which is in our city.

  12. Real Onigashima ONIGASHIMA Inside of Cave Monster (Ogre) Moai Statue

  13. 3D Models DogMonkeyPheasant Momotaro Oni (Ogre)

  14. Map of the Virtual Worldoverlaid on Takamatsu Port ONIGASHIMA 4km

  15. Evaluation • Jan. 15-29, 2005 • 21 subjects (1 failed, 6 male students, 14 female students) • Each subject played the role of Momotaro. • 25-58 minutes (ave. 35min.) • GPS error: approx. 10m as S.D.

  16. Evaluation Process A subject • was given a GPS-phone, a compass, and a map (virtual objects were not given except for the first one), • was given instructions for phone operation and the goal of game, • requested to play the game, and • requested to fill in a questionnaire and asked some questions.

  17. User's View in Play

  18. Results

  19. Results • Mobile Gaming is exciting. • Successful as an entertainment. • 3rd person view gave a good result. • System response was good. • The GPS error problem still remains.→ Path Matching Algorithm will be adopted. • As a sightseeing support system, we still have further investigation tasks. • It was not a guide system. • Trade-off balance between the real and virtual

  20. Future Work • More functions of agents • send messages to the user. • move • create • Open evaluation sessions • Anyone who has one’s own GPS-phone can participate. • Nov. 2005 (scheduled) • Integration with the brew-based version.

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