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A method of synchronization for haptic collaborative virtual environments in multipoint and multi-level computer

Kazuyoshi Tagawa¹, Tatsuro Bito, Hiromi T Tanaka

¹Ritsumeikan University, Japan. tagawa@tagawa.info

Studies in Health Technology and Informatics

|February 22, 2011

Summary

This study introduces a novel volume-based haptic system enabling remote users to interact with shared virtual objects. The system efficiently synchronizes object manipulation and deformation using minimal data exchange over a wide area network.

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Area of Science:

Computer Science
Virtual Reality
Haptics

Background:

Remote collaboration in virtual environments is limited by real-time interaction capabilities.
Existing haptic systems often require significant data bandwidth for shared object manipulation.

Purpose of the Study:

To develop and evaluate a novel volume-based haptic communication system for simultaneous remote interaction with shared virtual objects.
To enable realistic simulation of deformable objects in networked virtual environments.

Main Methods:

Developed dynamic adaptive grids (online-remesh volume models) for simulating deformable objects.
Implemented a system exchanging manipulation parameters and synchronization packets for shared volume models.
Rendered haptic feedback based on simulated object reflection forces.

Main Results:

The system successfully allowed simultaneous interaction with shared virtual objects across remote sites.
Efficient data exchange was achieved through manipulation parameters and synchronization packets.
Experiments on a wide area network (Tokyo-Osaka-Kyoto) demonstrated system efficiency.

Conclusions:

The developed volume-based haptic system provides an efficient solution for remote collaboration in virtual environments.
Dynamic adaptive grids are effective for simulating deformable objects in networked haptic applications.
The system shows promise for applications requiring realistic remote interaction with virtual objects.