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Do You Love Me? [video]

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Re: Do You Love Me? [video]

#111
post #20

It’s hard to shake of the feeling that those aren’t rendered. However, it’s also kind of sad that this amazing technology goes from one owner to another without a clear push into the real world.

Oof. I don’t know how sad it is. Slap some guns on them and they’ll start selling. I kind of hope they stick to dancing and novelty tricks.

Bipedal robots aren't a great match for battlefield situations because they lack the ability to do proper decision making and are very expensive.

The dogs might be more usable, but even then modern conflicts are not really based on ground war. I don't think those have any significant value over a an actual drone.

Now a fleet of tiny quad-motor drones with a few bullets? That could work in high-density urban environment an quickly render guerilla warfare impossible. This project comes to mind: https://www.darpa.mil/program/offensive-swarm-enabled-tactic...

Re: Do You Love Me? [video]

#112

So what's the main barrier to using these industrially? Is it reliability? Did this video a zillion takes? Is it manufacturing? Maybe it's hard to scale them up? Is it battery life? Maybe it can power itself for just a few minutes? Is it object manipulation or sensing/world understanding? Maybe it can't apply the right forces to a soft thing or a flexible thing or know what it can step on vs over or what will move or…

> So what's the main barrier to using these industrially?

Battery technology.

Re: Do You Love Me? [video]

#113
post #21

Looks like Atlas may have had an accident during filming, there's a hydraulic fluid stain on the floor: https://youtu.be/fn3KWM1kuAw?t=163 And it must also be said that these are preprogrammed maneuvers on a closed course...

The poses are programmed, but the balance can't be. At least.. if they would be that would be a significant achievement as well I think. So the robots have target poses they should approximate, but how to get there, and without falling over, that's seriously impressive.

Re: Do You Love Me? [video]

#114
post #31

Earlier quoted context omitted.

The velociraptor on wheels is a good name. I shudder to think what war variant machines will resort to when they are running low on ammo. Do robots need to follow the Geneva convention?

Just look at the history of landmines. 164 countries have voted to ban them, 33 have not. surprisingly (or not), at least one of these countries professes to be horrified when low-tech versions of the same technology are deployed against it and considers that to be appalling moral cowardice.

The reason 1 of the countries did not sign on is they use a bunch of them to prevent North Korea from invading South Korea

Re: Do You Love Me? [video]

#115

I am a huge fan of spartan-like no-bullshit brutalist approach towards their marketing/PR: - No studio setup, just their lab - No artificial lighting - No fucks given about hiding the mess - Robots going through surgery in the background - Song is classy af IMO - Can see the camera man - Can see the engineers/employees - Framing/cinematography isn't as polished (this is a feature, not a bug) - Chipped paint, beaten u…

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Re: Do You Love Me? [video]

#116

So what's the main barrier to using these industrially? Is it reliability? Did this video a zillion takes? Is it manufacturing? Maybe it's hard to scale them up? Is it battery life? Maybe it can power itself for just a few minutes? Is it object manipulation or sensing/world understanding? Maybe it can't apply the right forces to a soft thing or a flexible thing or know what it can step on vs over or what will move or…

[deleted]

Re: Do You Love Me? [video]

#117
post #91

So what's the main barrier to using these industrially? Is it reliability? Did this video a zillion takes? Is it manufacturing? Maybe it's hard to scale them up? Is it battery life? Maybe it can power itself for just a few minutes? Is it object manipulation or sensing/world understanding? Maybe it can't apply the right forces to a soft thing or a flexible thing or know what it can step on vs over or what will move or…

Who needs dancing robots? What I mean this video does not show that useful work has been implemented. Probably flexibility of tasks might be a problem. Or there is no problem and we see rollout in the next few years.

It shows that they can fuse IMU and other sensor data and feed it to a trajectory-optimization system and get actuation torques meeting realtime contraints sufficiently quickly to not fall over. Bonus points for smooth motion.

Check out MIT’s Underactuated Robotics class taught by Tedrake. Spring 2018 is all on Youtube, I believe. A Raibert Hopper simulation is one of the first homework sets. Post a link to tbe video of your solution.

Re: Do You Love Me? [video]

#118
post #113
post #21

Looks like Atlas may have had an accident during filming, there's a hydraulic fluid stain on the floor: https://youtu.be/fn3KWM1kuAw?t=163 And it must also be said that these are preprogrammed maneuvers on a closed course...

The poses are programmed, but the balance can't be. At least.. if they would be that would be a significant achievement as well I think. So the robots have target poses they should approximate, but how to get there, and without falling over, that's seriously impressive.

Exactly right. SOTA is to continuously solve a trajectory optimization problem in realtime. Probably at a rate of a fews 10’s of milliseconds per solution.

Re: Do You Love Me? [video]

#119
post #4

If I didn't know who Boston Dynamics was, I would have said that this is just CGI. The animations look so fake. I think the issue is that they're aggressively smoothing the motion since mechanical systems don't have the ability to accelerate & jerk as fast as biological systems. Cheap mocap animation has the same problem because the frame rate of the capture system is too low. They interpolate between captured keyfra…

> The animations look so fake. Let’s talk about why it looks fake. I think it comes from the use of hydraulics. Biological muscle is way less linear (it works more like a second-order control system, where things often overshoot their target before dampening). But one part of it may also be algorithmic: the robot’s Kalman filter (?) may correct for errors from sensor fusion much faster than a human would. I would lov…

To me it looks like claymation. But of course I can't really explain what it means for something to "look like claymation" to me. Is it that the movement is too isolated? Not isolated enough? Both of those things at the same time in different ways?
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