This paper deals with a remote haptic painting lesson system by which a teacher trains a student how to paint pictures or figures while conveying the sense of force interactively through a network. In the system, we introduce media synchronization control in order to achieve a high quality of haptic transmission. We make a quality
comparison of four media synchronization schemes (Virtual-Time Rendering (VTR), VTR with prediction, fixed buffering with prediction, and Skipping) by subjective assessment.
This paper deals with a remote control system which controls a haptic interface device with another remote haptic interface device. Applications of the system include a remote drawing instruction system, a remote calligraphy system and a remote medical operation system. This paper examines the influence of network latency on the output quality of haptic media by subjective assessment in the remote drawing instruction system. As a result, we show that the instructor has smaller Mean Opinion Score (MOS) values than the learner, and the MOS value can be estimated with high accuracy from the summation of the network latency from an instructor's terminal to a learner's terminal and that in the opposite direction.
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