I want to use Kinect v2 and record Depth, IR, and RGB images. About the characteristics of depth image we all know that depth image shows distance of person from the Kinect sensor and as we move close or far from the sensor the depth values changes. However, I want to know about the characteristics of IR image. If the person is standing in front of sensor and after some time he forward does the IR image show any change?
The IR image is simply the intensity of reflected IR radiation as emitted by the Kinect. The IR image will not show any change in distance other than the illumination tapering off if you move too far away and the sensor saturating if you have are too close or have a reflective surface in front of the Kinect.