Abstract:

The new prediction model for the throwing velocity is established based on application background of throwing virtual object on augmented reality. Firstly, two dimensions three order polynomial functions are used to fit velocity curve of throwing, and the maximum value of function is used to obtain the value of throwing velocity. Secondly, three dimensions three order polynomial functions are used to fit trajectory curve of throwing, the tangential direction is the throwing direction based on the moment of throwing. Simulation results show the value and direction of throwing is acquired easily through the new method, overcome the accurate dependency of each position in space. Besides, it can ensure the coherence of trajectory between virtual and real objects, which provides a benefit to the coherence of trajectory of augmented reality application.

Key words: throwing;velocity;prediction;augmented reality