3 ms·

This could be extended for multitouch too, yeah?

• robotresearcher 7y ago
  Yes, but it would have a possibly annoying limitation of occlusion making the multi-touch fail at some positions. Fingers very close to the camera would appear huge and occlude everything else.
• mkl 7y ago
  Sort of. Actual optical multitouch systems use multiple cameras, so fingers blocked by other fingers can be seen from other angles.