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A Hierarchical Annotation Database and a Dynamic Priority Control Technique of Annotation Information for a Networked Wearable Augmented Reality System

Filtering annotations is very important in networked wearable AR systems in order for the server to efficiently deliver the information that each user needs to his/her wearable computer. In this paper, we propose a hierarchical data structure associated with the real environment, a dynamic priority control technique for filtering annotations, and divided/weighted transfer of annotations. Our dynamic priority control technique is able to give higher priority to more important annotations according to the user’s position and angular velocity of viewing direction. We also show the results of simulation experiments regarding the performance evaluation of the proposed technique.