Experiments of entertainment application of a virtual world system for mobile phones
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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 l.jpg

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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Virtual City1 System for Mobile Phones(Fantasy World)

overlay

Virtual City2

(Historical World)

Real World


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Virtual Objects System for Mobile Phones

Virtual Creatures

Virtual Architectural Objects

Designed With LightWave 3D


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Our Strategy System for Mobile Phones

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


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GPS-phones in Japan System for Mobile Phones

  • 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.


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Virtual City: User's View System for Mobile Phones

ConceptualModel

A Virtual Building

A Real Building

Terminal

Virtual Objects Shown

on a GPS-phone


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Two Implementations System for Mobile Phones

  • 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


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Browser System for Mobile PhonesBasedSystem


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What is an Active Agent? System for Mobile Phones

  • 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.)


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Interaction with a Virtual Creature System for Mobile Phones


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Evaluation Session System for Mobile Phones(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.


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Real Onigashima System for Mobile Phones

ONIGASHIMA

Inside of Cave

Monster (Ogre)

Moai Statue


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3D Models System for Mobile Phones

DogMonkeyPheasant

Momotaro

Oni (Ogre)


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Map of the Virtual World System for Mobile Phonesoverlaid on Takamatsu Port

ONIGASHIMA

4km


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Evaluation System for Mobile Phones

  • 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.


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Evaluation Process System for Mobile Phones

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.


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User's View in Play System for Mobile Phones


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Results System for Mobile Phones


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Results System for Mobile Phones

  • 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


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Future Work System for Mobile Phones

  • 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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