This would allow future machines to be able to imitate handwriting, pour water into a glass or handle a dishwasher. The results were published online in the journal IEEE Transactions on Robotics.
The robotic arm perfectly mimics a sample of handwriting. © Institut für Physik 3 - Biophysik, Univ. Göttingen
Most human movements consist of a multitude of individual actions, which are connected to each other automatically. When a child learns to write, it initially guides the pen hesitantly. Over time, the child gradually learns to connect the individual letters to each other smoothly.
To date, however, machines work only through a chain of distinct motion elements. Scientists working with Prof. Dr. Florentin Wörgötter, coordinator of the Bernstein Focus Neurotechnology at the University of Göttingen, have now altered the mathematical basis of control commands in a few, but crucial, details. As a result, the robot can combine actions such as writing multiple letters connected to each other dynamically. Thus, robotic movements come much closer to the biological model than previously.
“In ten to fifteen years service robots will play a major role, so it is important that machine movement becomes more and more human-like, and thus predictable for us, so that we can work together without accidents,” explains Wörgötter.
The Minister for Science and Culture in the state of Lower Saxony, Prof. Dr. Johanna Wanka, was delighted by the capabilities of the robot demonstrated on a visit to the Bernstein Focus Neurotechnology and the Bernstein Center for Computational Neuroscience in Göttingen. After the Minister provided a handwritten sample, the robot mimicked it perfectly. “Now, our robot is the first to officially master ministerial handwriting," said Prof. Wörgötter with a smile. “I am excited about the scientific results obtained at this location in Göttingen and I look forward to the many new possible applications for these technologies in the field of service robotics though I will continue to write my signature myself,” states the Minister.
The mathematical method that was further developed by the Göttingen scientists is particularly characterized by the fact that it can be easily transferred to different courses of action and produces extremely smooth movements. Thus, it could make a significant contribution to the development of robots that support humans in their daily lives in the future.
The Bernstein Focus Neurotechnology Göttingen is part of the National Bernstein Network Computational Neuroscience (NNCN) in Germany. The NNCN was established by the German Federal Ministry of Education and Research with the aim of structurally interconnecting and developing German capacities in the new scientific discipline of computational neuroscience. The network is named after the German physiologist Julius Bernstein (1835–1917).
Original Publication: Kulvicius T, Ning K, Tamosiunaite M, Wörgötter F (2011): Joining movement sequences: modified dynamic movement primitives for robotics applications exemplified on handwriting. IEEE Transactions on Robotics, doi: 10.1109/TRO.2011.2163863; September 1, 2011.Contact:
Lego-like wall produces acoustic holograms
17.10.2016 | Duke University
New evidence on terrestrial and oceanic responses to climate change over last millennium
11.10.2016 | University of Granada
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
07.12.2016 | Health and Medicine
07.12.2016 | Life Sciences
07.12.2016 | Health and Medicine