Error Control Based on Importance in a Remote Haptic Calligraphy System

Abstract

In this paper, we deal with a remote haptic calligraphy system in which a teacher instructs multiple students at remote locations how to write characters while conveying the sense of force by multicast communications. We also propose an error control scheme which transmits important media units (MUs) multiple times which include the positional information in the case where the speed of the teacher's brush stroke is faster than a threshold value by adding the MUs to the succeeding MUs as well as transmitting them independently. By experiment, we demonstrate that the proposed scheme can keep the media output quality high at the expense of slight increase of the traffic amount.

QoS Control and QoE Assessment in Multi-Sensory Communications with Haptics

“…In [24] and [26], error control which is based on the degree of importance is proposed for the remote calligraphy in Sect. 3.1.1 (2).…”

“…2(c)) by using PHANToM Omnis, and the student can feel as if his/her calligraphy brush were held and navigated by the teacher. In [26], a teacher can also instruct multiple students by multicast communications.…”

“…2(b) for remote drawing instruction in [12], [23], and [24]). In remote calligraphy [24]- [26], a teacher can instruct a student at a remote place how to write characters (see Fig. 2(c)) by using PHANToM Omnis, and the student can feel as if his/her calligraphy brush were held and navigated by the teacher.…”

“…Error control recovers from packet error, packet loss, duplication, and order error [6], [7], [16], [24]- [26]. In [16], Yap and Marshall employ interleaving to spread bursts of errors for haptic transmission.…”