Touch sensing technology is usually suited for small and flat objects which are not always compatible to use. Since it would be expensive to transfer these technologies to larger surfaces, such as walls, furniture and objects with more complex surfaces, researchers have come up with a solution to this problem with Electrick, a low-cost touch sensing technique.
How it works is that you add coating to the conductive surface and Electrick can detect touch locations and continuous touch tracking. The sensing principle works by injecting small electric current to the conducting coating using a pair of electrodes.
With this developing technology, there are no limits to what you can do. To find out what options Electrick offers take a look at the video above.
Source: The Verge