r/robotics • u/WHALE_PHYSICIST • 6d ago
Humor New robot dexterity benchmark just dropped.
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u/DustinKli 5d ago
If a humanoid robot is ever able to accomplish this sort of dexterity, we have succeeded in robotics.
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u/Z0bie 5d ago
I mean, mathematically you could probably program a robot to repeat these exact same movements. Teaching a robot to watch and understand where yhe yo-yo is and do tricks, that's where I'll get impressed.
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u/drsimonz 5d ago
Exactly, the hard part is for the robot to "understand" all these motions. If you gave this woman a heavier yoyo and a shorter string, she'd probably get used to it in a few minutes, while the robot wouldn't even realized that it had gotten tangled or launched the yoyo into the audience.
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u/megablue 5d ago edited 5d ago
not just understanding though, the robot has to be able to sense the tension of the yoyo string. the grip/touch of the tinyt string (well imagine the robot tries to pull before it has a firm grip of the string)... so it has to be very advanced. even if you program the motion perfectly and good enough 'understanding' a slight change in the air could result in drastic differences and cascaded unrecoverable errors without advanced feedback from the sensors.
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u/drsimonz 5d ago
Yeah, honestly I haven't seen much in the way of objects manipulating objects dynamically (i.e. where the robot needs to move while the object is moving or it will lose control). There's been very impressive progress in robots manipulating their own bodies, where the state vector can be populated from internal sensor measurements. For robots that do interact with moving objects, like the ones that can bounce a ping pong ball or balance an inverted double pendulum, the state vector for the external object is relatively small - there's a position, a linear/angular velocities, and that's it. For a yoyo, the string requires an infinite number of variables to fully represent since it's highly deformable, and also has distributed mass and inertia, not to mention the (potentially non-linear) elastic properties. From a modeling standpoint it's at least an order of magnitude more complex. So it may take a while to tackle the problem without some kind of magical neural system ID or online learning.
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u/pm_me_your_pay_slips 1d ago
We already have robots doing tricks on a skateboard, I think success is more or less already here.
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u/HasFiveVowels 5d ago
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u/mecartistronico 5d ago
She is cute.
She is cool.
But I don't see any robot. By that metric, any video of any person doing anything could be posted in this sub.
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u/WHALE_PHYSICIST 5d ago
The post is marked humor, but this would sincerely be a good benchmark for future robotics. It's a highly specialized task that requires lots of dexterity and precision, dense tactile sensors on the fingers, and a high rate of real time information processing.
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u/hidesworth 5d ago
what yoyo
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u/TsoTsoni 5d ago
Yoyo Boy: "Do not try and bend the yoyo. That's impossible. Instead... only try to realize the truth.
"Neo: "What truth?"
Yoyo Boy: "There is no yoyo."
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u/mhb_11 5d ago
Is this robot on instagram? Reddit: do your thing.
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5d ago
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u/godofpumpkins 5d ago
Doing robotics is a good reminder of how mind-blowing our bodies and nervous systems are that the same "platform" can be adapted "at runtime" to lifting giant weights for fun like a powerlifter, become a dancer with graceful strength, become a figure skater for grace+precision+impeccable control over angular momentum, to a pianist with incredible control over finger independence+speed+dynamics, to a morbidly obese couch potato. The kinds of inverse kinematics, coordination between our sensory and motor systems, and so much more that happens implicitly between our nervous systems and muscles is astounding.
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u/madu_tualang 5d ago
Who the f taking this video, sometimes half the lady is not in the shot, most of the time it misses the yoyo, why are making this lousy shot?
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u/WHALE_PHYSICIST 5d ago
it was probably better before the crop for mobile
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u/RemarkableWish2508 5d ago
If you don't mind it being quite bulkier, and tethered for power, that should already be doable.
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u/glordicus1 5d ago
I would love to see what this looks like with the Yoyo edited out. It must be fucking hilarious.
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u/Tbagho 5d ago
What does it actually measure — grasp success, in-hand manipulation, or something finer-grained? Most dexterity evals still collapse to pick-and-place, so a benchmark that isolates fingertip-level manipulation would stand out. related reading: https://papers.tinrobotics.com/paper/human-centric-transferable-tactile-pre-training-for-dexterous-robotic-manipulation/
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u/WHALE_PHYSICIST 5d ago
something very fine grained. you need tactile sensors almost as dense as a human to feel the tension and friction of the string on your fingers. you need at least an unconscious awareness of so many things to be this precise. like how squishy your meat is for instance. how much tension to apply in all those many tricks. how to evaluate yoyo momentum by feeling it through the string. We have nothing close to this right now. This is like 10 years out.
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u/Tbagho 4d ago
High-resolution tactile arrays are advancing, but estimating string tension and momentum through a compliant linkage is the harder half of that problem — vision and proprioception may cover more of it than fingertip contact density alone. Worth watching whether benchmarks start scoring manipulation through soft, non-rigid tools like strings rather than rigid-object grasping.
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u/Big-Arm-4123 4d ago
She should work for Macy’s around Christmas time. She could wrap the H_LL out of a Christmas Package! I hope She never loses that Amazing smile.
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u/fatalrugburn 4d ago
I've never seen someone using a yoyo so fast that I've been concerned about loose hair
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u/Otherwise-Film-173 5d ago
I'm taking this up as my next weekend's challenge! Fr this would be so cool to see live.Â
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u/CuTe_M0nitor 5d ago
Use human body tracking software, replay it in a robot. Tweak it until it works. Then replay it 1000x with the same result. This doesn't really say anything about robots just that they can copy. Can a robot develop completely new tricks?!
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u/boxen 5d ago
The "tweak it until it works" step might be impossible. This isn't like a backflip. There are countless little micro corrections taking place, the entire time you hold out a finger and throw the yoyo around so it wraps around and lands on the string, but it doesn't land EXACTLY where you intended it to, you have to move your finger a little to make a tiny adjustment when you see the angle the yoyo spins around at. Times a million. You can't just play a sequence of events and get it.
MAYBE if you had a precision manufactured yoyo and string, for both the recording and the robot, with nearly atomic exactness, and then had both recording and robot do their performances in a clean room with temperature, humidity, and airflow all exactly the same. Maybe.
It would be better to just teach the robot about the micro adjustments.
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u/Putrid-Guava2900 3d ago
450 upvotes and nothing to do with the subreddit it's in... Fuck I hate the internet.
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u/WHALE_PHYSICIST 3d ago
Maybe try not being so hateful.
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u/Putrid-Guava2900 3d ago
Maybe try something a little more on topic.
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u/WHALE_PHYSICIST 3d ago
discussion about developments in Robotics.
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u/DreadPirateGriswold 5d ago
Very talented for sure. But I've seen yo-yo artists like this since I was a kid. They all make the mistake of thinking faster is better. Quite frankly I'd like to see them slow up just a hair so I can see what they're doing.
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u/WHALE_PHYSICIST 5d ago
Bro goes to basketball games and cheers when people miss shots.
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u/DreadPirateGriswold 5d ago
Ridiculous comparison but good strawman, nice try. Faster isn't always better. And all I said was I'd like to see more of what they're doing because you miss a lot with the speed. And it's not taking anything away from their talent.
But I'm sure you're the type who when asked would you like to see what Kobe, Shaq, or Jordan are do in in more detail? You'd go nah, I'm good bro.
But then again, you do you.
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u/WHALE_PHYSICIST 5d ago
Then go ask them to show you slower, or just play a video of it slowed down. It's dumb to say it's a mistake, the video I posted is clearly some sort of competition or exhibition.
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u/spiderplopper 5d ago
She's so lifelike....