4 ms·
I think the new Kinect makes use of time-of-flight if I recall correctly (which they do indicate in the article). If I understand correctly, with time-of-fligh
by anfractuosity 9y ago
I think the new Kinect makes use of time-of-flight if I recall correctly (which they do indicate in the article). If I understand correctly, with time-of-flight you don't need to project a pattern as in structured light setups.
- Animats 9y agoYes, the current Kinect is a time-of-flight device. The original one was an "unstructured light" device, the generic term for those random-pattern-of-dots projectors. This is a takeoff on "structured light", where you project a known line pattern on a 3D surface and view it from another angle to get depth. Structured light systems are used industrially; the compute power required is low, as is the software complexity.[1] [1] http://www.micro-epsilon.com/2D_3D/laser-scanner/ http://www.micro-epsilon.com/2D_3D/laser-scanner/
- joshvm 9y agoYes, time of flight makes a direct distance measurement per-pixel. It's based on a phase shift principle; send out modulated light and compare the ingoing/outgoing phases. The phase difference is proportional to the distance the wave travelled. The original Kinect is basically a one-camera stereo setup. The pattern is known and they perform correlation with a stored image of the pattern at a calibrated distance.