Matt

G'day, doctors.

I'm not really a specialist, just a massive nerd with an interest in 3D technology.

So what actually happens is with your phones and tablets and 3D scanners, they use what I believe the professionals would call an IR constellation, so an infrared constellation.

So each of those, it essentially throws out a bunch of lines of IR light.

And each of those lines is known by the computer where it is, where it is in space, how and what angle is

in between those two lines.

Exactly.

So you're able to find out very, very accurately how far away the surface is, what,

plane it's on, how it's moving, a lot of different information using these IR constellations.

So with your phones and tablets, they'll use maybe one constellation and maybe one or two cameras to find out how far away it is and what it looks like.

With the big 3D scanners, they'll use three, four, five cameras

and about six different constellations.

And they'll be scanning in lines or circles or however they decide is the best way to do it.

Right down to the millimetre.

Probably sub-millimetre precision.

Thank you, Dr. Martin.

Absolutely.

No problem.

Have an awesome day.

Sam, I love when the song ends right as you're pulling it.