Video Algorithm Makes Invisible Motion Visible
MIT scientists have created a way to amplify ordinary video to reveal normally imperceptible movements, such as the pulse of blood underneath the skin. Applications range from patient monitoring to equipment surveillance to lie detection.
What's the Latest Development?
Scientists at MIT's Computer Science and Artificial Intelligence Laboratory have developed a process, Eulerian Video Magnification (EVM), that can be applied to ordinary video to display movements that are all but invisible to the naked eye. Since presenting the process at last summer's SIGGRAPH conference in Los Angeles, the team has worked on improving its accuracy and clarity, and the resulting code is available online along with a site to which people can upload video clips and see how they look with the process applied.
What's the Big Idea?
The original purpose of EVM was to allow monitoring of babies in neonatal wards without physically touching them. Now the team envisions EVM being used in functions ranging from search-and-rescue -- checking whether a victim is still breathing, for instance -- to monitoring the safety of factory equipment. MIT co-author Michael Rubinstein says that people have also asked about EVM's effectiveness in lie detection, either in a police examining room or at a poker table: "[They] wanted to be able to analyze their opponent...and be able to know whether they’re cheating or not, just by the variation in their heart rate." The team is working on turning the program into a smartphone app.
Photo Credit: Shutterstock.com
Swipe right to make the connections that could change your career.
Swipe right. Match. Meet over coffee or set up a call.
No, we aren't talking about Tinder. Introducing Shapr, a free app that helps people with synergistic professional goals and skill sets easily meet and collaborate.
A completely unexpected discovery beneath the ice.
- Scientists find remains of a tardigrade and crustaceans in a deep, frozen Antarctic lake.
- The creatures' origin is unknown, and further study is ongoing.
- Biology speaks up about Antarctica's history.
She met mere mortals with and without the Vatican's approval.
- For centuries, the Virgin Mary has appeared to the faithful, requesting devotion and promising comfort.
- These maps show the geography of Marian apparitions – the handful approved by the Vatican, and many others.
- Historically, Europe is where most apparitions have been reported, but the U.S. is pretty fertile ground too.
It's one factor that can help explain the religiosity gap.
- Sociologists have long observed a gap between the religiosity of men and women.
- A recent study used data from several national surveys to compare religiosity, risk-taking preferences and demographic information among more than 20,000 American adolescents.
- The results suggest that risk-taking preferences might partly explain the gender differences in religiosity.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.