Piccolo - Control your home with gestures
Hammer.js - Hammer is an open-source library that can recognize gestures made by touch, mouse and pointer events.
gesture.ai - Easy to use gesture recognition technology and SDK
Leap Motion VR - Leap Motion for Oculus Rift VR
Project Soli by Google - Your hands are the only interface you'll need
Leap Motion - Reach into the future of virtual and augmented reality with the most advanced hand tracking on Earth, used by over 300,000 developers worldwide.