Description:

OpenNI framework provides an application programming interface (API)
for writing applications utilizing natural interaction. This API
covers communication with both low level devices (e.g. vision and
audio sensors), as well as high-level middleware solutions (e.g. for
visual tracking using computer vision).

The OpenNI Framework provides the interface for physical devices and
for middleware components. The API enables modules to be registered in
the OpenNI framework and used to produce sensory data. Selecting the
hardware or middleware module is easy and flexible.