[HN Gopher] MegaPortraits: One-Shot Megapixel Neural Head Avatars
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       MegaPortraits: One-Shot Megapixel Neural Head Avatars
        
       Author : voydik
       Score  : 156 points
       Date   : 2022-07-20 16:37 UTC (6 hours ago)
        
 (HTM) web link (samsunglabs.github.io)
 (TXT) w3m dump (samsunglabs.github.io)
        
       | daenz wrote:
       | I love the technology behind this stuff but the number of
       | applications with negative social benefit seem to outweigh the
       | rest.
        
         | zamalek wrote:
         | > the rest.
         | 
         | It's often missed that "the rest" includes plausible
         | deniability. As states become ever more infatuated with
         | surveillance, this is going to become extremely important.
        
         | mrwh wrote:
         | I'm inclined to agree. So clever, and yet what's the actual
         | good of it? Feels like there's a crisis in our industry
         | (talking of the wider software engineering world) of finding
         | real, human problems to solve. And so we end up with this, so
         | highly advanced and yet it's not going to improve any lives
         | (and possibly very much the reverse).
        
         | belter wrote:
         | I can see famous actors licensing their image, with multiple
         | shadow actors doing their moves. Now you can make 50 movies per
         | year instead of 5. You heard it here first...
        
           | ceeplusplus wrote:
           | The shadow actor still needs to deliver a convincing
           | performance though (=$$$). AI can't magically make bad acting
           | turn into good acting.
        
             | kibibu wrote:
             | Why not create an AI model that improves acting?
        
               | towaway15463 wrote:
               | Acting style transfer. And they thought the creatives
               | would have the safe jobs! Ha!
        
           | ricochet11 wrote:
           | see the film "The Congress" where Robin Wright does exactly
           | this
           | 
           | https://www.youtube.com/watch?v=zkDyKWKNeaE
        
           | lijogdfljk wrote:
           | Yup. As an aspiring indie game dev i eagerly await large
           | scale emotive text to speech. Being able to write a script
           | and have it "acted" for a fraction of the cost, possibly free
           | if i build it myself, is kinda mind blowing.
        
           | sangnoir wrote:
           | I can see studios licensing upcoming actors in perpetuity for
           | a pittance. Alternatively, they can synthesize a persona that
           | never ages/complains, and have dozens on nameless grunts be
           | the underpaid talent -like the thousands of people who've
           | donned Goofy suits for Disney
        
           | [deleted]
        
           | pmontra wrote:
           | Too much exposure. I'm thinking instead about a dozen more
           | young Sean Connery 007 movies, ten more young Harrison Ford
           | Indiana Jones and Star Wars movies, etc. diluted in the next
           | 30 years. Replace with any other star and repeat for the next
           | century. I guess that copyright could be extended to faces
           | and the usual 75 years after the death of the actor. Studios
           | will take care of that.
        
           | throwaway675309 wrote:
           | With the rise of really good neural TTS engines that can re-
           | create voice actors with a high level of accuracy, I've been
           | predicting the same thing will happen in cartoons and anime
           | for years now.
        
           | wsinks wrote:
           | I've been thinking it, but I haven't seen someone else write
           | it - see ya in 2025 Belter.
        
           | UmYeahNo wrote:
           | Pretty sure that's already a thing, not for movies per se but
           | for ads where a celeb can license their avatar - 3d model and
           | voice for use in ads. Especially useful when they want the
           | celebs lips to move correctly when the ad is translated into
           | non-native languages.
        
         | postalrat wrote:
         | Similar technology has been around for a while and so far it's
         | only generated a few laughs and some use in the film industry.
         | 
         | GPT-3 hasn't taken over social media.
         | 
         | Dall-e 2 hasn't put all graphical artists out of a job.
        
           | shynrou wrote:
           | ..., yet. Mostly because of the tech being decently locked
           | down by license and limited access currently. At the pace
           | these models are developing it's pretty much unthinkable that
           | it will not have a big impact in the next 20 years.
        
             | postalrat wrote:
             | Access is limited by the hardware you have access to.
             | Forget about training, just running these models takes a
             | lot of memory.
        
           | anigbrowl wrote:
           | Get back to me in 5 years.
        
         | mandmandam wrote:
         | I dunno. A lot of the worst stuff this could be used for kinda
         | pales in comparison to what's going on already by different
         | means.
         | 
         | Like, if you're trying to smear someone, using big media and
         | abusing the courts to fuck them up (say, Assange or Hale or
         | Reality Winner) makes this look like a Fisher Price toy club
         | next to an uzi.
         | 
         | If you're trying to sway an election, the big data and subtle
         | ads (and again, big media and the courts) makes far more of a
         | difference than this. Think Brexit, Trump 2016, the count in
         | Florida in 2000, Diebold machines, etc.
         | 
         | If you're trying to topple a government / make taxpayers pay a
         | huge bailout / start an illegal war / etc, etc, etc - this is
         | just another small tool; the leather punching tool on a vast
         | penknife.
         | 
         | **
         | 
         | Conversely, the creative potential may be larger than most
         | suspect. To me, this feels like we're getting close to
         | something like the holodeck in Star Trek, where people can
         | share the fruit of their imagination with anyone for virtually
         | no cost (IP lawyers shudder, like Lionel Hutz imagining a world
         | without lawyers).
        
       | sebmellen wrote:
       | This is perhaps the most impressive "AI" demo I've seen, and
       | that's saying a lot. Interesting to read about the Moscow-based
       | "Samsung AI Center" that seems to be producing this work:
       | https://research.samsung.com/aicenter_moscow.
        
       | ansible wrote:
       | There are still some issues to be worked out, such as how the
       | head shape distorts in some examples, but overall, this is very,
       | very impressive work.
       | 
       | Back in the old days, Disney and other animation studios
       | rotoscoped actors performances by drawing over the original image
       | (by hand) each frame. It won't be long now before you just have
       | an artist create a few examples of concept art, and just video
       | the performances of the actors without much / any special setup
       | other than maybe wearing a tracking suit.
       | 
       | How many years away are we from the point where you can just type
       | in a script (or just put in some writing prompts and have an AI
       | generate a script), describe the direction for the actors ("bend
       | over and pick up the bucket", "exit stage left"), and then just
       | churn out a movie?
       | 
       | If you pick up just a little bit of skill with animation,
       | compositing, and such you're a one-person movie studio. Crazy
       | times. This is not what I imagined the future was going to look
       | like, but it will be entertaining.
        
         | keawade wrote:
         | We've got AI assisted rotoscoping already and while it looks a
         | bit janky at times its still a whole lot faster than doing it
         | all by hand. https://www.youtube.com/watch?v=tq_KOmXyVDo
        
         | anigbrowl wrote:
         | _describe the direction for the actors_
         | 
         | What actors? There are a lot of writers who will jump at the
         | opportunity to skip all the translation and re-interpretation
         | by others and directly build the visuals as they go. Some of
         | this will be extremely cringeworthy, but a lot of it will be
         | astonishingly good.
        
       | moondev wrote:
       | This is seriously incredible. Coolest thing I have seen in a very
       | long time. Curious how long it takes to render one of the short
       | example clips shown.
        
       | shimonabi wrote:
       | This is so impressive it acutally scares me.
        
       | hansword wrote:
       | "Neural Head Avatar" is not a good name, but it sure beats
       | "deepfake".
        
       | baxtr wrote:
       | I wonder how this could be used by a state actor to manipulate.
        
       | malshe wrote:
       | This is incredible! When I look at all the advances in computer
       | vision and NLP in the last five years, I can't believe the pace
       | of advancements. I have stopped saying "AI can't do ____ in our
       | lifetime" to my friends.
        
       | tomcam wrote:
       | Holy shit
        
       | roughly wrote:
       | There's something almost humorous about the last video being
       | narrated by a text-to-speech system - hearing a system that
       | clones human speech describe a system that clones human motion
       | really adds a surrealist touch to the whole thing.
        
       | anewpersonality wrote:
       | The deepfake industry just got a lot bigger.
        
       | reidjs wrote:
       | When will something like this be available to the average user?
        
         | zitterbewegung wrote:
         | It already is https://www.thispersondoesnotexist.com is powered
         | by StyleGAN [1] . Its on GitHub at [2]
         | 
         | [1] https://en.wikipedia.org/wiki/StyleGAN
         | 
         | [2] https://nvlabs.github.io/stylegan3/
        
           | 1f60c wrote:
           | The photos at the top of the page are the researchers--the
           | demos (two videos) are a bit further down the page.
        
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       (page generated 2022-07-20 23:00 UTC)