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Nvidia Research Turns 2D Photos into 3D Scenes

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91–100 of 239 posts

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#91

I don't really understand why NeRFs would be particularly useful in more than a few niche cases, perhaps because I don't fully understand what they really are. My impression is that you take a bunch of photos in various places and directions, then you use those as samples of a 3D function that describes the full scene, and optimize a neural network to minimize the difference between the true light field and what's de…

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Re: Nvidia Research Turns 2D Photos into 3D Scenes

#92
post #47

It would be really great to recreate loved ones after they have past in some sort of digital space. As I’ve gotten older, and my parents get older as well, I’ve been thinking more about what my life will be like in old age (and beyond too). I’ve also been thinking what I would want “heaven” to be. Eternal life doesn’t appeal to me much. Imagine living a quadrillion years. Even as a god, that would be miserable. That…

>Imagine living a quadrillion years. Even as a god, that would be miserable. This seems very subjective, I don't agree at all.

Seriously... the idea of living a quadrillion is hardly an extension of 100. You can still never go backward. You still need to plan your life. Death would still be a common occurrence.

I would much MUCH rather live much longer. I don't hate my life at all.

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#93

It would be really great to recreate loved ones after they have past in some sort of digital space. As I’ve gotten older, and my parents get older as well, I’ve been thinking more about what my life will be like in old age (and beyond too). I’ve also been thinking what I would want “heaven” to be. Eternal life doesn’t appeal to me much. Imagine living a quadrillion years. Even as a god, that would be miserable. That…

You'd probably like Spielberg's A.I., or at least find it topical.

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#94
post #90

I hope someone can take this, all the images of street view, recent images of places etc. and create a 3d environment covering as much of earth as possible to be used for an advanced Second Life or other purposes.

Self-driving car companies are already working on this. Check out: https://waymo.com/research/block-nerf/

NERF is a very active research area, and the progress from 2020 to now has been nothing sort of astonishing. In 5 years, I expect there to be fully generative NERF's in research i.e describe a scene, and a NN produces a full 3d scene that can you interact with.

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#95
post #2

>The model requires just seconds to train on a few dozen still photos — plus data on the camera angles they were taken from — and can then render the resulting 3D scene within tens of milliseconds. Generating the novel viewpoints is almost fast enough for VR, assuming you're tethered to a desktop computer with whatever GPUs they're using (probably the best setup possible). The holy grail (from my estimation) is getti…

You could train the initial model in sim and do sim2real finetuning. Someone must be working on this already

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#96
post #16
post #8

My prediction/hope is that NeRFs will totally revolutionize how the film/TV industry. I can imagine: - Shooting a movie from a few cameras, creating a movie version of a NeRF using those angles, and then dynamically adding in other shots in post - Using lighting and depth information embedded in NeRFs to assist in lighting/integrating CG elements - Using NeRFs to generate virtual sets on LED walls (like those on The…

This sort of stuff (generating 3D assets from photographs of real objects) has been common for quite a while via photogrammetry. NeRFs are interesting because (in some cases) they can create renders that look higher quality with fewer photos, and they hint at the potential of future learned rendering models.

I did it for a project… it was SLOW! Gave decent rules for a large area, but poor results for small details.

The real trick is textures.

When the photo is laid over and wrapped on the model, it looks great. But once you remove that, the raw mesh underneath is not as impressive.

I would really like to see the examples they had here without the texture laid on top.

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#97
post #8

My prediction/hope is that NeRFs will totally revolutionize how the film/TV industry. I can imagine: - Shooting a movie from a few cameras, creating a movie version of a NeRF using those angles, and then dynamically adding in other shots in post - Using lighting and depth information embedded in NeRFs to assist in lighting/integrating CG elements - Using NeRFs to generate virtual sets on LED walls (like those on The…

Perhaps even making non-gimmicky live action 3d films. Having 3d renders of the entire film without needing green screens and a bunch of balls seems like it would have to make some of the post processing work easier. You can add or remove elements. Adjust the camera angles. More effectively de-age actors. Heck, even create scenes whole cloth if an actor unexpectedly dies (since you still have their model). Seems like…

With this - and with all the footage on actors you have (their movies) - then you basically have all actor's models.

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#98
post #9
post #8

My prediction/hope is that NeRFs will totally revolutionize how the film/TV industry. I can imagine: - Shooting a movie from a few cameras, creating a movie version of a NeRF using those angles, and then dynamically adding in other shots in post - Using lighting and depth information embedded in NeRFs to assist in lighting/integrating CG elements - Using NeRFs to generate virtual sets on LED walls (like those on The…

Computer games, VR and AR could also be pretty amazing uses for this technique too.

Not even a full 3-D environment is required, just a bit of 6DOF and parallax would go a long way. I think VR videos (ok, porn) has gone as far as it can without head tracking.

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#99
post #90

I hope someone can take this, all the images of street view, recent images of places etc. and create a 3d environment covering as much of earth as possible to be used for an advanced Second Life or other purposes.

Self-driving car companies are already working on this. Check out: https://waymo.com/research/block-nerf/ NERF is a very active research area, and the progress from 2020 to now has been nothing sort of astonishing. In 5 years, I expect there to be fully generative NERF's in research i.e describe a scene, and a NN produces a full 3d scene that can you interact with.

Can it be done with Google's existing Street View data?

Re: Nvidia Research Turns 2D Photos into 3D Scenes

#100

It would be really great to recreate loved ones after they have past in some sort of digital space. As I’ve gotten older, and my parents get older as well, I’ve been thinking more about what my life will be like in old age (and beyond too). I’ve also been thinking what I would want “heaven” to be. Eternal life doesn’t appeal to me much. Imagine living a quadrillion years. Even as a god, that would be miserable. That…

My gut reaction to 'recreating loved ones in VR' is that it would be torturous more than soothing. Once a person dies, they're gone. The world is different, and nothing will bring them back. Spending time with a simulacrum isn't really spending time with a loved one.

Precisely. This is going to be used to suck people into the metaverse.
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