3D time of flight cameras
Pulses of IR light are sent from the cameras inbuilt illuminator with the sensor measuring the time for the reflection of the light to return. Currently TOF cameras are common with less than VGA spatial resolutions with early products featuring megapixel resolutions. The Z resolution is also relatively low with repeatability in the centimetre range over a metre or so. This lends itself to 3D object detection rather than accurate measurement. A growing application area is