Robohub.org
 

Human-like arm movements

by
06 August 2010



share this:

Many robots are required to move like humans. Human-like motion is useful to efficiently interact with humans and environments built for them, make realistic humanoids or replace actual limbs (prosthetics).

To this end, Artemiadis et al. propose a technique to generate anthropomorphic motion with a robot arm. The task consists in making the robot extremity reach a specific position in 3D in a human-like way. The challenge is that robots with many degrees of freedom can reach a specific point by following many different trajectories (redundant robots).

To choose what trajectory is more human-like, robots observe humans moving their arm (see figure below). This data is then used to create a probabilistic model (Bayesian Network) that describes how joints are related to each other (inter-joint dependencies). These dependencies are taken into account when planning the arm trajectory using inverse kinematics.

Using this technique, robots were able to replicate arm motions previously performed by humans and even generate new ones that had never been observed!




Sabine Hauert is President of Robohub and Associate Professor at the Bristol Robotics Laboratory
Sabine Hauert is President of Robohub and Associate Professor at the Bristol Robotics Laboratory





Related posts :



ep.

352

podcast

Robotics Grasping and Manipulation Competition Spotlight, with Yu Sun

Yu Sun, previous chair of the Robotics Grasping and Manipulation Competition, speaks on the value that this competition brought to the robotics community.
21 May 2022, by
ep.

351

podcast

Early Days of ICRA Competitions, with Bill Smart

Bill Smart, one fo the early ICRA Competition Chairs, dives into the high-level decisions involved with creating a meaningful competition.
21 May 2022, by

New imaging method makes tiny robots visible in the body

Microrobots have the potential to revolutionize medicine. Researchers at the Max Planck ETH Centre for Learning Systems have now developed an imaging technique that for the first time recognises cell-​sized microrobots individually and at high resolution in a living organism.
20 May 2022, by

A draft open standard for an Ethical Black Box

Within the RoboTIPS project, we have developed and tested several model of Ethical Black Boxes, including one for an e-puck robot, and another for the MIRO robot.
19 May 2022, by

Unable to attend #ICRA2022 for accessibility issues? Or just curious to see robots?

There are many things that can make it difficult to attend an in person conference in the United States and so the ICRA Organizing Committee, the IEEE Robotics and Automation Society and OhmniLabs would like to help you attend ICRA virtually.
17 May 2022, by
ep.

350

podcast

Duckietown Competition Spotlight, with Dr Liam Paull

Dr. Liam Paull, cofounder of the Duckietown competition talks about the only robotics competition where Rubber Duckies are the passengers on an autonomous driving track.
17 May 2022, by





©2021 - ROBOTS Association


 












©2021 - ROBOTS Association