Abstract: Methods and apparatuses for rapidly tagging and recalling (via direct pointing) metadata from moving or still images are described herein. In one embodiment, data having full descriptions and hyperlinks are tagged to specific objects in moving images and the invisible hyperlinks move dynamically to continually track the associated object. In one embodiment, a pointing device can be used to point to objects in the scene, whether moving or stationary, and by appropriate action such as clicking or activating a button, be able to substantially immediately recall part or all of the metadata content that pertains to the object. Other methods and apparatuses are also described.

Abstract: Methods and apparatuses for a free-space multi-dimensional absolute pointer using a projection marker system are described herein. In one embodiment, a presentation system includes, but is not limited to, a projection-based marker apparatus to project one or more optical spots on a display surface for displaying machine generated content capable of being manipulated via a cursor of a pointing device, a handheld device to wirelessly capture the projected optical spots from the display surface, and a control unit communicatively coupled to the projection-based marker apparatus and the handheld device to determine coordinates of the cursor based on characteristics of the captured light spots. Other methods and apparatuses are also described.