While the most obvious applications of Facial
Pointing involve letting the user explicitly identify a screen location
(e.g. screen magnification), we are starting
to explore applications where the system interprets the user's facial movements
and performs higher level actions in response.
A good example is scrolling a document. Rather than reach for the mouse, find the scroll bar and manipulate it, a user need only aim their nose below or above a document window to scroll that window up or down. We have also identified several other methods of navigating through a document based on the user leaning toward and away from the screen. This brings up an important point about these type of direct sensing user interface tools. While having the system respond to the users motions can be desirable, there are times when a user will NOT want the system to respond. It is possible for the user to explicitly turn and off these tools, but a more attractive solution is for the system to automatically detect when it should enable a behavior based on the user's context. This is just one of the many areas which need to be further explored in order to make camera-based interactions into truly usable tools. |
| Contact: Rick Kjeldsen | Last updated: 6/12/02 | ||
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