Microsoft Research has also uploaded two new videos that show off aspects of Kinect 2.0. One shows how the sensor detects a human and how he or she moves in a room, along with monitoring human heartbeats. The other video shows the higher fidelity and larger field of view that the 3D Kinect camera has, along with its 2D color camera and Active IR, which lets Kinect see in the dark and gets rid of any distracting ambient light.
Source: Microsoft