Motion "Tracking" vs. Motion "Capture"

---

Both involve digital data describing the motion of an object.

For use as musical input, this is usually (but need not necessarily be) the locomotion or gestures of a human body.

Many means of deriving this data are possible; a 2-D video image is the most obvious and readily available source.

Tracking	Capture
Realtime data stream(s) describing location/motion of object(s).	Non-realtime data collection representing coordinates of object(s).
Useful for continuous control of a device or a process.	Useful as input to an analysis or animation program.