Biomedical Engineering Reference
In-Depth Information
Fig. 16.5
The Microsoft Kinect sensor
Fig. 16.6
The structured light pattern generated by the Kinect's infrared laser projector is shown.
Through stereo triangulation between two images, a depth map is constructed
automatic login of players. The multi-array microphone is a set of four microphones
that are able to isolate the voices of multiple users from the ambient noises in the
room. It makes use of acoustic source localization and ambient noise suppression
allowing users to be a few feet away from the device but still be able to use the
voice controls in a headset-free manner. The third component of the hardware, the
depth sensor (generally referred to as the 3D or depth camera), combines an infrared
laser projector and a CMOS (complimentary metal-oxide semiconductor) sensor.
The infrared projector casts out a myriad of infrared dots (see Fig.
16.6
) that the
CMOS sensor is able to “see” regardless of the lighting in the room and is the most
differentiating feature of the Kinect.
To acquire 3D depth information, a software component of the Kinect interprets
the data from the CMOS sensor. Rays are cast out via the infrared projector in a
