Researchers at Tohoku University think they’ve found a better way. The team has developed a system that turns any regular flat surface into a touch input area for AR and MR headsets . No extra sensors. No special markers. Nothing to set up. When you press a fingertip against a hard surface, the skin under your fingertip turns white for a brief moment. This phenomenon is known as the blanching effect, and researchers have developed a method to identify it using the headset cameras. The
