An experimental study on the role of touch in shared virtual environments
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on human-computer interaction and collaborative virtual environments
DAB: interactive haptic painting with 3D virtual brushes
Proceedings of the 28th annual conference on Computer graphics and interactive techniques
Performance and Co-Presence in Heterogeneous Haptic Collaboration
HAPTICS '03 Proceedings of the 11th Symposium on Haptic Interfaces for Virtual Environment and Teleoperator Systems (HAPTICS'03)
On the Effects of Haptic Display in Brush and Ink Simulation for Chinese Painting and Calligraphy
PG '02 Proceedings of the 10th Pacific Conference on Computer Graphics and Applications
Media synchronization control with prediction in a remote haptic calligraphy system
Proceedings of the international conference on Advances in computer entertainment technology
Evaluating ALPHAN with Multi-user Collaboration
DS-RT '08 Proceedings of the 2008 12th IEEE/ACM International Symposium on Distributed Simulation and Real-Time Applications
Networked penalty shootout with haptic media and video
ACE '08 Proceedings of the 2008 International Conference on Advances in Computer Entertainment Technology
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For a design of distributed virtual environments (DVEs) system, it is important to clarify the relation between network-level quality of service (QoS) and user-level QoS. This paper examines network QoS problem on a remote calligraphic teaching system with haptics interfaces, where a pair of users (teacher and student) interact directly (not through any virtual objects), and the operation of haptic device of one user is immediately reflected to another user's reaction force. In this system, teacher navigates student to write down the same character on a virtual paper using a constraint force. The constraint force is used to hold the user's stylus of haptic device to follow the remote user's operation. We propose a new method to generate a constraint force, which enables to hold tightly the remote user's stylus with suppressing unexpected vibrations. This system also can show a visual guide, which stands the remote user's information (position of the cursor and writing pressure). We carried out subjective evaluation on the system for assessing the effect of network delay between teacher and student's hosts. We also compared the effect of force feedback and visual guide in the system to evaluate the role of haptics.