OpenNi

OpenNI or Open Natural Interaction is an industry-led non-profit organization and open source

software project <br>

focused on certifying and improving interoperability of natural user interfaces and organic user interfaces for Natural Interaction (NI) devices,<br>

applications that use those devices and middleware that facilitates access and use of such devices.<br>

 (Source:https://en.wikipedia.org/wiki/OpenNI)