New research from the Hasso Plattner Institute in Postdam, Germany, aims to quell the frustration and strife that can come when multiple people use a single touch screen. The project, called Bootstrapper, uses cameras below a table to identify different users by their shoes. Each set of shoes is linked to an account that keeps track of a person's actions and preferences.
Unlike other approaches to differentiating between users, Bootstrapper uses low-cost hardware and allows a person's hands to freely interact with the surface. As an added benefit, a user's preferences can be stored according to her shoes, so when she leaves the table, it's easier to resume an activity when she returns.
To read the full, original article click on this link: Tabletop Computer Knows You by Your Shoes - Technology Review
