GravitySpace

Interactive games have to use programs for tracking people and objects indoors.  The traditional way of sensing objects on a screen is using cameras, but GravitySpace, from Hasso Plattner Institute, uses a pressure-sensing floor that generates a 3D-like scene on the screen by identifying texture and using inverse kinematics.

The pressure-sensitive floors that GravitySpace uses can only sense direct contact with the screen but it can also figure out what the user is doing, such as sitting, their poses, and also when they move virtual items that are on the screen.  When using cameras, there might be times where the camera cannot receive data on what the user is doing, but with pressure-sensing floors, it will detect what the user is doing at all times.  

An 8m² floor prototype was created with touch sensitive furniture to identify users, furniture and also poses.  This prototype has a 1mm resolution that projects across the whole floor screen.