Phantom-Based Haptic Interaction with Virtual Objects
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This paper introduces collaborative haptic play with building blocks which we have developed. In the play, two users do collaborative work in a 3-D virtual space by using haptic interface devices. By subjective assessment, we investigate the influences of network latency and packet loss in work where two users lift and move the blocks to build a doll-house and in work where two users lift and move the blocks from an area to another area. We deal with three cases of collaborative play in the two types of work. In one case, the two users carry the blocks by holding them together. In another case, the users carry the blocks alternately by holding them separately. In the other case, one of the two users carries each block from a position and hands the block to the other of the two users, who receives it and then carries it to another position. Assessment results show that the operability in the first case is the best among the three cases.