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Learning athletic humanoid tennis skills from imperfect human motion data

zzk273.github.io

41–44 of 44 posts

Re: Learning athletic humanoid tennis skills from imperfect human motion data

#41
post #21
post #14

This is so interesting. Especially since it's kinda weird to train a robot to mimicking human play. I wonder what a perfect robot what actually behave like. It wouldn't need to split-step to activate muscles, the footwork would probably be minimal. I imagine a lot of different unusual looking swings to confuse human players, while still making perfect contact. It could make really late drop shots or even rotate the r…

> I wonder what a perfect robot what actually behave like. Really depends what its hardware is. One with hardware a lot like a human would behave like a human. Since you didn't specify, I'm going to go with a robot that looks like a giant pong paddle.

I don't know much about tennis, but the perfect opponent is probably some form of slightly concave wall that will always bounce the ball into the court no matter the angle you send the ball at it

Re: Learning athletic humanoid tennis skills from imperfect human motion data

#42
post #19

Earlier quoted context omitted.

Look at recent developments/announcements involving novel increasingly generalizable learning capabilities from projects like 1X/Neo, Figure 03, Skild AI. Also see open published work like MimicDroid, HDMI, GenMimic, Humanoid-Union Dataset, RoboMirror, Being-H0 Figure 03: https://www.youtube.com/watch?v=e-31-KBBuXM https://www.youtube.com/watch?v=ZUTzuhkDG3w 1X Neo: https://www.youtube.com/watch?v=lS_z60kjVEk Skild A…

Yeah those are demos. I think we‘re pretty far away from this becoming a real thing. I wrote up why here: https://matthiasplappert.com/blog/2026/humanoid-robot-in-the...

You're not really trying to see the advances in things like the data flywheel. If you were you would see that those demos represent real movement towards generality.

Re: Learning athletic humanoid tennis skills from imperfect human motion data

#43
post #42

Earlier quoted context omitted.

Yeah those are demos. I think we‘re pretty far away from this becoming a real thing. I wrote up why here: https://matthiasplappert.com/blog/2026/humanoid-robot-in-the...

You're not really trying to see the advances in things like the data flywheel. If you were you would see that those demos represent real movement towards generality.

Where’s the data flywheel exactly?

Re: Learning athletic humanoid tennis skills from imperfect human motion data

#44
post #15

We have just started ramping up practical use of imitation learning from human demonstrations in humanoids. A bigger development is that one or two projects are working on training foundational vision action language models based on large video datasets. I think before the end of summer general purpose physical knowledge and capabilities will start to be demonstrated by one or more humanoid AI or robotics groups. May…

I know labs are throwing an insane amount of money wherever they can to try and build datasets for this - at claru.ai we're working with a few and they are even grabbing all the players like labelbox, toloka etc to throw armies at getting bespoke data for these needs. Most of the time its get data then figure out what to do with it after...the unfortunate strategy from what I'm seeing but data is a moat in their eyes
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