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Ann R. Thryft
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Re: Manipulators
Ann R. Thryft   5/29/2012 11:50:15 AM
Glenn, thanks for that observation about the photo. I should have pointed out in the caption that this universal gripper, without the algorithm, can pick up objects but that this shows how it does so in a non-optimal manner, forming a "before" picture.

Ann R. Thryft
User Rank
Re: Like humans do
Ann R. Thryft   5/29/2012 11:48:57 AM
naperlou, not everyone thinks about how a robot would do things they themselves are doing. But that does sound like how engineers think. Thanks for the observation about the lack of sensors here--I think that's a good point, and it's interesting to know this isn't the only research team taking that approach.

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GlennA   5/29/2012 10:01:07 AM
Picking up an object is only part of the problem.  The picture shows a gripper spilling a glass of water.  After the object is grasped, some purpose must be accomplished.  If the water were wine and needed to go from a pitcher into a glass, it would be inportant not to spill it onto the floor or table, and that the robot's 'fingers' not get into the wine.  While this is an interesting line of research, I can't see it replacing purpose-built grippers yet.

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Like humans do
naperlou   5/29/2012 9:39:16 AM
Ann, this might mark me out as a bit wierd, but I think about this a lot.  Whenever I put the silverware away I thnk to myself, how would I program a robot to do this? 

What really strikes me about this, and some other situations I have seen, is that people are programming robots to do things using a fairly simple vision system along with memory (a database) and an algorithm.  This contrasts with robotics approaches that use all kinds of complex sensors.  In many cases they are trying to automate something we do with our simple sensors naturally.  Interesting.

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