摘要 : This report proposes an inter-destination (or group) synchronization scheme, which adjusts the output timing among destinations, in distributed virtual environments where voice and video streams are output in a 3-D virtual space. ... 展开 This report proposes an inter-destination (or group) synchronization scheme, which adjusts the output timing among destinations, in distributed virtual environments where voice and video streams are output in a 3-D virtual space. We introduce the concept of the global importance as well as the local importance of media objects, each of which includes a voice stream and a video one. The two types of importance are determined by the positional relation between media objects and users, and they represent how strongly each object attracts the users' attention. The local importance is the importance which is judged from the viewpoint of each user. It is used under intra-stream and inter-stream synchronization control. The global importance means the importance which is judged from the point of view of all the users in the virtual space. We enhance the synchronization maestro scheme, which the authers previously proposed, so as to adjust the output timing of media streams among the destinations according to the global importance. In addition, we illustrate the effectiveness of the proposed scheme by experiment. 收起