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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

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)

slide2

Virtual City1(Fantasy World)

overlay

Virtual City2

(Historical World)

Real World

virtual objects
Virtual Objects

Virtual Creatures

Virtual Architectural Objects

Designed With LightWave 3D

our strategy
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

gps phones in japan
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.
virtual city user s view
Virtual City: User\'s View

ConceptualModel

A Virtual Building

A Real Building

Terminal

Virtual Objects Shown

on a GPS-phone

two implementations
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
what is an active agent
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.)
evaluation session jan 2005
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.
slide12

Real Onigashima

ONIGASHIMA

Inside of Cave

Monster (Ogre)

Moai Statue

3d models
3D Models

DogMonkeyPheasant

Momotaro

Oni (Ogre)

evaluation
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.
evaluation process
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.
results19
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
future work
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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