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.

Video Algorithm Makes Invisible Motion Visible

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

Read it at The New York Times

Dogs digest human food better and poop less

A new study finds that dogs fed fresh human-grade food don't need to eat—or do their business—as much.

Credit: Charles Deluvio/Unsplash
Surprising Science
  • Most dogs eat a diet that's primarily kibble.
  • When fed a fresh-food diet, however, they don't need to consume as much.
  • Dogs on fresh-food diets have healthier gut biomes.
Keep reading Show less

New study suggests placebo might be as powerful as psychedelics

New study suggests the placebo effect can be as powerful as microdosing LSD.

Credit: agsandrew / Adobe Stock
Mind & Brain
  • New research from Imperial College London investigated the psychological effects of microdosing LSD in 191 volunteers.
  • While microdosers experienced beneficial mental health effects, the placebo group performed statistically similar to those who took LSD.
  • Researchers believe the expectation of a trip could produce some of the same sensations as actually ingesting psychedelics.
Keep reading Show less

Your genetics influence how resilient you are to the cold

What makes some people more likely to shiver than others?

KIRILL KUDRYAVTSEV/AFP via Getty Images
Surprising Science

Some people just aren't bothered by the cold, no matter how low the temperature dips. And the reason for this may be in a person's genes.

Keep reading Show less
Quantcast