Today you are going to see virtual  worlds like you've never seen before!

This is done with something that we call  NERFs. So, what are NERFs? Essentially,  

we grab a smartphone and a set of images go in,  and reality comes out. When there is a gap between  

the images, it can synthesize all this information  and it almost looks like reality. Absolute magic.

Now, many of these are neural network-based  techniques and take quite a while to compute.  

However, later NVIDIA published a technique  by the name instant NERFs. As the name says,  

this trains incredibly quickly and is one of  the best techniques in its class. And today,  

these can be produced from a smartphone camera,  and can be generated in a matter of seconds.

But, there is a problem. Do you see the  problem? Well, let me ask you another  

question - how do you spot a Fellow Scholar  who watches Two Minute Papers? Well, of course,  

they are always looking at thin structures. Why?  Well, look! So, instant NERFs are super fast,  

but have trouble with thin structures. And  now, hold on to your papers Fellow Scholars,  

and let's look at how this new paper deals with  the same problem. Oh my, that is outstanding!

But wait, it is only better on thin structures,  

or is it generally better than this  previous technique? Well, let's see. Yes,  

thin structures are still present, but the  new one is significantly better in terms  

of quality. Wow. And this is just one year and  one more paper down the line. Very impressive.

Also, here is a comparison against Mip-NERF, this  is real good, so I bet the new one isn't better,  

especially that this previous one ran  for about 20 times longer. Let's see.  

Is that really possible? The new one  is still better. 20 times faster,  

and we don't even have to pay for it by  giving up quality. This is still better.

With this, we can now just grab a smartphone  and scan a real place and make a virtual  

world out of it. This can be used for a video  games, videoconferencing, animation movies,  

you name it. Now, not even this work is perfect,  you see, specular reflections like this display  

are not that faithful to reality, and if we look  at severely undersampled regions, this can happen.  

However, just think about the fact that all  this came just one more paper down the line.

Now combine this together with this amazing  light transport paper that can take photos  

of real-world objects and create a super  advanced, digital material model with just  

the right physical parameters to replicate it.  So, NERFs can help with the geometry, and light  

transport can help with the materials. And a  potential combination of the two could create  

even more incredible virtual worlds and games for  us in the near future. What a time to be alive!

Thanks for watching and for your generous  support, and I'll see you next time!