| 摘要 |
With the addition of directional information in the environment, a variety of service(s) can be provided on top of user identification or interaction with specific object(s) of interest. For instance, when a user points at a particular item at a particular location or place, this creates an opportunity, e.g., an advertising opportunity, for anyone having an interest in that particular item to communicate with the user regarding that item or related items at a point in time when the user's focus is on the particular item. User context for the interaction can also be taken into account to supplement the provision of one or more interactive direction based services. |
