prosthetics / en łÔąĎ±¬ÁĎ computer scientist develops programming for effective prosthetics and agile robots /news/u-t-computer-scientist-develops-programming-effective-prosthetics-and-agile-robots <span class="field field--name-title field--type-string field--label-hidden">łÔąĎ±¬ÁĎ computer scientist develops programming for effective prosthetics and agile robots</span> <div class="field field--name-field-featured-picture field--type-image field--label-hidden field__item"> <img loading="eager" srcset="/sites/default/files/styles/news_banner_370/public/2017-07-31-mobile-prosthetics.jpg?h=afdc3185&amp;itok=FEPMi3HJ 370w, /sites/default/files/styles/news_banner_740/public/2017-07-31-mobile-prosthetics.jpg?h=afdc3185&amp;itok=YtU7xXjd 740w, /sites/default/files/styles/news_banner_1110/public/2017-07-31-mobile-prosthetics.jpg?h=afdc3185&amp;itok=-cy6uNLs 1110w" sizes="(min-width:1200px) 1110px, (max-width: 1199px) 80vw, (max-width: 767px) 90vw, (max-width: 575px) 95vw" width="740" height="494" src="/sites/default/files/styles/news_banner_370/public/2017-07-31-mobile-prosthetics.jpg?h=afdc3185&amp;itok=FEPMi3HJ" alt> </div> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span>ullahnor</span></span> <span class="field field--name-created field--type-created field--label-hidden"><time datetime="2017-07-31T14:23:42-04:00" title="Monday, July 31, 2017 - 14:23" class="datetime">Mon, 07/31/2017 - 14:23</time> </span> <div class="clearfix text-formatted field field--name-field-cutline-long field--type-text-long field--label-above"> <div class="field__label">Cutline</div> <div class="field__item">A U.S. veteran tries out a prosthetic arm. A computer scientist from łÔąĎ±¬ÁĎ as well as researchers from MIT and Adobe have developed computational methods for improved prosthetic body parts (Photo by Timothy A. Clary/AFP/Getty Images) </div> </div> <div class="field field--name-field-author-reporters field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/authors-reporters/nina-haikara" hreflang="en">Nina Haikara</a></div> </div> <div class="field field--name-field-author-legacy field--type-string field--label-above"> <div class="field__label">Author legacy</div> <div class="field__item">Nina Haikara</div> </div> <div class="field field--name-field-topic field--type-entity-reference field--label-above"> <div class="field__label">Topic</div> <div class="field__item"><a href="/news/topics/breaking-research" hreflang="en">Breaking Research</a></div> </div> <div class="field field--name-field-story-tags field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/tags/robots" hreflang="en">Robots</a></div> <div class="field__item"><a href="/news/tags/prosthetics" hreflang="en">prosthetics</a></div> <div class="field__item"><a href="/news/tags/computer-science" hreflang="en">Computer Science</a></div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>Scientists designing agile robots and&nbsp;efficient prosthetics can soon expect a new tool in their toolbox.&nbsp;&nbsp;</p> <p>A University of Toronto computer scientist, researchers from Massachusetts Institute of Technology (MIT) and Adobe Research have developed a set of computational methods that will help automate the design of mechanisms that propel movement.&nbsp;</p> <p>“The goal is to bring the physical rules of virtual reality much closer to those of actual reality,”&nbsp;says <strong>David I. W. Levin</strong>, an assistant professor and researcher in the <a href="http://www.dgp.toronto.edu/home/">Dynamic Graphics Project</a> lab at łÔąĎ±¬ÁĎ’s&nbsp;department of computer science.&nbsp;</p> <p>Levin researches computational physics, a field which develops&nbsp;methods for a wide range of applications&nbsp;from biomechanical models of muscle&nbsp;to mechanical analysis of 3D printed objects.</p> <p>“Computers are great at designing things, but they need to be able to predict the real-world behaviour of whatever it is they are designing,” says Levin. “That’s where computer simulation comes in.”</p> <p>The researchers will present methods&nbsp;such as Dynamics-Aware Coarsening (DAC), which speeds-up simulations, and Boundary Balanced Impact (BBI), which models the impact behaviour of flexible objects.&nbsp;Together, these two methods simulate objects performing real-world flips, throws and jumps at rates 70 times faster than current state-of-the-art methods, while simultaneously improving the accuracy of such computer simulations.</p> <p>Levin and lead author, MIT PhD student&nbsp;Desai Chen, as well as MIT&nbsp;Professor Wojciech Matusik and Adobe researcher Danny M. Kaufman will present <a href="http://people.csail.mit.edu/desaic/projects/DesDynCoarsen_2017-v2.pdf">their study</a> this week&nbsp;at the world's largest conference and exhibition in computer graphics&nbsp;and interactive techniques.&nbsp;</p> <p>Prior to joining łÔąĎ±¬ÁĎ, Levin was an associate research scientist at Disney Research, which&nbsp;takes computer graphics and animation outside of the studio, applying it to a real-world problem.&nbsp;</p> <p>“Dynamics is crucial for understanding how humans and animals move and for building everything from better car tires&nbsp;to more efficient prosthetics,” he says. “That’s what is so exciting about DAC and BBI – they give us a new, powerful, broadly applicable computational tool.”</p> <p>The&nbsp;work was supported in part by the National Science Foundation (NSF), and Levin's research has also received funding from the&nbsp;<a href="/news/56-rising-u-t-research-stars-awarded-connaught-new-researcher-awards">Connaught New Researcher Award.</a></p> <p><iframe allowfullscreen frameborder="0" height="500" src="https://www.youtube.com/embed/TyjUYMS62b8" width="750"></iframe></p> </div> <div class="field field--name-field-news-home-page-banner field--type-boolean field--label-above"> <div class="field__label">News home page banner</div> <div class="field__item">Off</div> </div> Mon, 31 Jul 2017 18:23:42 +0000 ullahnor 111259 at Undergrads, professors collaborate to develop state-of-the-art leg brace for student with cerebral palsy /news/undergrads-professors-collaborate-develop-state-art-leg-brace-student-cerebral-palsy <span class="field field--name-title field--type-string field--label-hidden">Undergrads, professors collaborate to develop state-of-the-art leg brace for student with cerebral palsy</span> <span class="field field--name-uid field--type-entity-reference field--label-hidden"><span>sgupta</span></span> <span class="field field--name-created field--type-created field--label-hidden"><time datetime="2015-08-27T11:51:10-04:00" title="Thursday, August 27, 2015 - 11:51" class="datetime">Thu, 08/27/2015 - 11:51</time> </span> <div class="clearfix text-formatted field field--name-field-cutline-long field--type-text-long field--label-above"> <div class="field__label">Cutline</div> <div class="field__item"> Engineering students Shakthi Seerala, Lakmini Perera, Kayatri Rangarajan and Elizabeth Sumitro, with Tom Garsides (photo by Marit Mitchell)</div> </div> <div class="field field--name-field-author-reporters field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/authors-reporters/kathleen-o-brien" hreflang="en">Kathleen O'Brien</a></div> <div class="field__item"><a href="/news/authors-reporters/cooper-long" hreflang="en">Cooper Long</a></div> </div> <div class="field field--name-field-author-legacy field--type-string field--label-above"> <div class="field__label">Author legacy</div> <div class="field__item">Kathleen O'Brien and Cooper Long</div> </div> <div class="field field--name-field-story-tags field--type-entity-reference field--label-hidden field__items"> <div class="field__item"><a href="/news/tags/features" hreflang="en">Features</a></div> <div class="field__item"><a href="/news/tags/u-t" hreflang="en">łÔąĎ±¬ÁĎ</a></div> <div class="field__item"><a href="/news/tags/robotics" hreflang="en">Robotics</a></div> <div class="field__item"><a href="/news/tags/prosthetics" hreflang="en">prosthetics</a></div> <div class="field__item"><a href="/news/tags/mobility" hreflang="en">mobility</a></div> <div class="field__item"><a href="/news/tags/ischool" hreflang="en">iSchool</a></div> <div class="field__item"><a href="/news/tags/faculty-kinesiology-physical-education" hreflang="en">Faculty of Kinesiology &amp; Physical Education</a></div> <div class="field__item"><a href="/news/tags/faculty-applied-science-engineering" hreflang="en">Faculty of Applied Science &amp; Engineering</a></div> <div class="field__item"><a href="/news/tags/back-school" hreflang="en">Back to School</a></div> </div> <div class="field field--name-field-subheadline field--type-string-long field--label-above"> <div class="field__label">Subheadline</div> <div class="field__item">iSchool, Engineering, Kinesiology &amp; Physical Education work together to enhance student's mobility</div> </div> <div class="clearfix text-formatted field field--name-body field--type-text-with-summary field--label-hidden field__item"><p>Robotic exoskeletons have long been a staple of science fiction.</p> <p>Now, Master of Information student <strong>Thomas Garside</strong> has collaborated with <a href="http://news.utoronto.ca/looking-future-matt-ratto">iSchool Professor <strong>Matt Ratto</strong></a> and a team of Engineering students and motion specialists from the Faculty of Kinesiology &amp; Physical Education to make such a device a reality.<br> <br> A full-time student concentrating on critical information policy studies and knowledge management, Garside has limited mobility because of cerebral palsy. Normally he gets around with a cane, wheelchair or motorized scooter.<br> <br> When he arrived at łÔąĎ±¬ÁĎ, he knew that more advanced mobility aids were under development – and that their price put them out of reach.<br> <br> Garside was also familiar with Ratto’s work as director of the iSchool’s Critical Making Lab, and in particular his application of <a href="http://news.utoronto.ca/using-3d-printers-create-prosthetic-limbs-ugandans">3D printer technology</a> to the problem of <a href="https://www.flickr.com/photos/71041967@N02/albums/72157650217582368">producing prosthetic sockets and limbs for Ugandan children</a>.<br> <br> “Even before being accepted into the iSchool I was impressed by the work he had done,” Garside says.<br> <br> The student decided to approach his professor of only two months about the possibility of creating a powered assistive device to help him, and others with mobility challenges, walk better.<br> <br> After consulting iSchool Dean<strong> Seamus Ross</strong>, they enlisted final-year engineering students <strong>Shakthi Seerala</strong>, <strong>Lakmini Perera</strong>, <strong>Kayatri Rangarajan</strong> and <strong>Elizabeth Sumitro</strong> to work on the electrical controls and sensor systems necessary for a mechanized leg brace.<br> <br> The circle of collaborators continued to widen: Garside sought out the expertise of Professors <strong>Luc Tremblay</strong> and <strong>Tyson Beach</strong>, sensorimotor control and biomechanics specialists from the Faculty of Kinesiology &amp; Physical Education. Using state-of-the-art 3D motion-capture and force-measurement systems, Beach analyzed Garside’s gait.<br> <br> <img alt src="/sites/default/files/2015-08-28-Tom_brace_side.jpg" style="width: 225px; height: 435px; margin: 10px; float: right;">Meanwhile, the Tetra Design Group charity connected Garside&nbsp;with a volunteer who was able to fabricate the mechanical components of the brace. Using off-the-shelf radio-controlled motors, the Engineering team finished a functioning prototype at a cost of only $1,000.<br> <br> Last spring Garside&nbsp;got to strap on the result of all this multi-disciplinary hard work. The prototype works by measuring the pressure exerted by the foot, detecting what part of the stride cycle he is performing and helping him flex his leg to complete the appropriate movement.<br> <br> “I have been amazed by the quality of the brace,” Garside says. “And I have been delighted to see how well the Master of Information program can help in the development of physical devices. The training I’ve received on design from faculty like <strong>Colin Furness</strong> has really been well applied to hardware.”</p> <p>Apart from enhancing his mobility, the project has given Garside useful experience in project management.<br> <br> The next steps are to work with Engineering and Tetra to improve the brace’s control system and look at different structural materials. Then, create a brace for his left leg.<br> <br> The results of this collaboration could have worldwide impact.<br> <br> “Besides the enhancement of the prototype,” Garside says, “we’re all excited to continue to show the world that exoskeleton technologies are now mainstream technologies capable of solving issues of mobility for the disabled and elderly.”</p> </div> <div class="field field--name-field-news-home-page-banner field--type-boolean field--label-above"> <div class="field__label">News home page banner</div> <div class="field__item">Off</div> </div> <div class="field field--name-field-picpath field--type-string field--label-above"> <div class="field__label">picpath</div> <div class="field__item">sites/default/files/2015-08-28-leg-brace.jpg</div> </div> Thu, 27 Aug 2015 15:51:10 +0000 sgupta 7240 at