‘it was challenging to design a functional interface which is projectable on a ping pong table taking in consideration the players’ ergonomic,’ explains thomas mayer. ‘project resolution, layout of the interface and arrangement of buttons were the biggest problems that I had to test in many prototypes.’
in his office, mayer setup a ping pong table surrounded by technical equipment. after several tests, he installed two sony ‘playstation CL-eye’ cameras and a full HD projector to work on the tracking of the balls and processing of the collected data. the first running prototype enabled him to include players in his testing to ensure a more user-orientated development.
https://www.designboom.com/technology/thomas-mayer-table-tennis-trainer-05-01-2016/