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

Read it at The New York Times

'Upstreamism': Your zip code affects your health as much as genetics

Upstreamism advocate Rishi Manchanda calls us to understand health not as a "personal responsibility" but a "common good."

Sponsored by Northwell Health
  • Upstreamism tasks health care professionals to combat unhealthy social and cultural influences that exist outside — or upstream — of medical facilities.
  • Patients from low-income neighborhoods are most at risk of negative health impacts.
  • Thankfully, health care professionals are not alone. Upstreamism is increasingly part of our cultural consciousness.
Keep reading Show less

Calling out Cersei Lannister: Elizabeth Warren reviews Game of Thrones

The real Game of Thrones might be who best leverages the hit HBO show to shape political narratives.

Photo credit: Mario Tama / Getty Images
Politics & Current Affairs
  • Sen. Elizabeth Warren argues that Game of Thrones is primarily about women in her review of the wildly popular HBO show.
  • Warren also touches on other parallels between the show and our modern world, such as inequality, political favoritism of the elite, and the dire impact of different leadership styles on the lives of the people.
  • Her review serves as another example of using Game of Thrones as a political analogy and a tool for framing political narratives.
Keep reading Show less

Following sex, some men have unexpected feelings – study

A new study shows that some men's reaction to sex is not what you'd expect, resulting in a condition previously observed in women.

Credit: Pixabay
Sex & Relationships
  • A new study shows men's feelings after sex can be complex.
  • Some men reportedly get sad and upset.
  • The condition affected 41% of men in the study
Keep reading Show less
Videos
  • Climate change is no longer a financial problem, just a political one.
  • Mitigating climate change by decarbonizing our economy would add trillions of dollars in new investments.
  • Public attitudes toward climate change have shifted steadily in favor of action. Now it's up to elected leaders.