The Kinect for Windows software development kit (SDK) October release was a pivotal update with a number of key improvements. One important update in this release is how control of infrared (IR) sensing capabilities has been enhanced to create a world of new possibilities for developers.
IR sensing is a core feature of the Kinect sensor, but until this newest release, developers were somewhat restrained in how they could use it. The front of the Kinect for Windows sensor has three openings, each housing a core piece of technology. On the left, there is an IR emitter, which transmits a factory calibrated pattern of dots across the room in which the sensor resides. The middle opening is a color camera. The third is the IR camera, which reads the dot pattern and can help the Kinect for Windows system software sense objects and people along with their skeletal tracking data.