Pre-Button Event Stylus Position

摘要

Embodiments of the present invention generally relate to methods and systems for correcting position and orientation displacement for a freehand user input device. Systems and methods include measuring the position and orientation of a freehand user input device over a period of time, determining the position and orientation as related to a specific time point at activation of a button, applying a temporal offset to the time point of the activation of the button to determine a button press start time, determining the position and orientation in the virtual space associated with the button press start time and associating the button press to the position and orientation in the virtual space.

主权项

1. A system, comprising:
a display screen configured to project a virtual space to a user comprising one or more projections; a freehand user input device having a button; a tracking device configured to:
position a pointer in a first position and a first orientation in the virtual space correlated to a first position and first orientation of the freehand user input device in the physical space;detect that a button has been activated on the freehand user input device to affect the one or more projections in the virtual space;detect that the freehand user input device has moved to a second position and second orientation in the physical space and the pointer has moved to a second position and second orientation in the virtual space; andcorrelate the activation of the button to a third position and third orientation in the virtual space in response to the detecting either that the button has been activated, or that the freehand user input device or the pointer has moved.