A Real Experiment in Virtual Environments A Virtual Batting Cage

A new system combines on- and off-line computer version with head tracking and image synthesis to form a "Virtual Batting Cage" where a batter swings a real baseball bat at a synthetic recreation of an actual pitch, enabling post-swing viewing and analysis. The system merges competely synthetic, completely real, and mixed-domain elements. Careful attention to timing is required to combine these elements. In addition to the obvious training application, the system suggests future model-based broadcast communication systems.