Sunday, September 14, 2025

Robot waltzes by mirroring human movements: a captivating feat

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A humanoid robot waltzes with help from an AI trained on human motion capture recordings

Xuxin Cheng and Mazeyu Ji

Have you ever wondered how robots can move so gracefully like humans? Scientists at the University of California, San Diego, have developed an AI system called ExBody2 that teaches robots to mimic human movements in a more lifelike manner. This means robots can walk, dance, and even fight in ways that are convincing and human-like.

The key to this technology is a database of human movements gathered from motion capture recordings. By training the AI system on this data, robots can quickly learn to perform a variety of actions similar to how humans do. Using reinforcement learning, the AI system can analyze successful movements and then replicate them on robotic platforms.

ExBody2 has already been tested on commercial humanoid robots, showcasing its ability to perform tasks like walking, crouching, dancing, and interacting with humans. This advancement in robotics opens up new possibilities for robots to have a wider range of capabilities by coordinating their limbs and joints effectively.

Watch the video above to see ExBody2 in action!

Topics: Robotics, Artificial Intelligence, Humanoid Robots


Vocabulary List:

  1. Mimic /ˈmɪmɪk/ (verb): To imitate or replicate actions or behaviors.
  2. Lifelike /ˈlaɪfˌlaɪk/ (adjective): Resembling or simulating the characteristics of a living being.
  3. Reinforcement /ˌriːɪnˈfɔːrsmənt/ (noun): The process of encouraging or establishing a certain response or behavior.
  4. Capable /ˈkeɪ.pə.bəl/ (adjective): Having the ability or competence to perform a task or function.
  5. Capabilities /ˌkeɪ.pəˈbɪl.ɪ.tiz/ (noun): The qualities or features that enable someone or something to perform a function.
  6. Interact /ˌɪn.təˈrækt/ (verb): To act in such a way that has an effect on another; to communicate or engage with others.

How much do you know?

What is the name of the AI system developed by scientists at the University of California, San Diego, to teach robots to mimic human movements?
ExBody1
ExBody2
RoboMimic
HumanoidAI
What is the key to the technology that enables robots to move gracefully like humans?
DNA sequencing
Database of human movements from motion capture recordings
Machine translation
Social media scanning
How do robots learn to perform a variety of actions similar to how humans do?
By watching movies
By trial and error
By uploading data directly to their systems
By training the AI system on human movement data
What technology is used by the AI system to replicate successful human movements on robotic platforms?
Image recognition
Reinforcement learning
Virtual reality
Augmented intelligence
Which tasks has ExBody2 been able to perform on commercial humanoid robots?
Swimming and diving
Baking and cooking
Walking, crouching, dancing, and interacting with humans
Driving and flying
What does the advancement in robotics discussed in the text open up for robots?
More sleep time
A wider range of capabilities by coordinating their limbs and joints effectively
Higher intelligence than humans
Telepathic communication
The AI system developed by scientists at the University of California, San Diego, is called ExBody1.
Robots learn human movements by analyzing data from social media posts.
ExBody2 has not been tested on commercial humanoid robots yet.
The key to the robot mimicking human movements is a database of human movements from motion capture recordings.
The AI system replicates successful human movements on robotic platforms using reinforcement learning.
Advancements in robotics do not offer new possibilities for robots to have a wider range of capabilities.
Scientists at the University of California, San Diego, have developed an AI system called that teaches robots to mimic human movements in a more lifelike manner.
ExBody2 has already been tested on commercial humanoid robots, showcasing its ability to perform tasks like
Using reinforcement learning, the AI system can analyze successful movements and then them on robotic platforms.
The advancement in robotics opens up new possibilities for robots to have a wider range of capabilities by coordinating their limbs and effectively.
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