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Seeing through the walls as Superman was always a science fiction thing. But it is already a reality
At least, within the laboratory of the prestigious MIT (Mbadachusetts Institute of Technology), in the United States.
A group of scientists has developed software that can accurately identify if someone is on the other side of an opaque wall and how he is moving.
The team, led by researcher Dina Katabi, of MIT's Computer Science and Artificial Intelligence Laboratory (CSAIL), has created an artificial intelligence-based system capable of identify and recreate human movements
But how does it work and how to make sure it's not used to spy on others?
The Power of Radiofrequency
Specialists call the software RF-Pose and the technology that governs it from RF-Capture because it uses radiofrequency (RF) waves.
"We use a camera and we take pictures of people in a place, and emit a signal that's the radio," Katabi told the BBC
. Little by little, computer scientists were learning to "see" by using several examples to identify people.
Thus, the neural network can badyze the signals and generate a skeletal figure in 3D that walks, smells, runs, dances or gestures like a human, imitating the movements that the person does in this [19659002] MIT hopes that a few years from now, this software will help doctors identify early signs of diseases such as Parkinson's disease, multiple sclerosis or muscular dystrophy, especially in people Elderly Advanced
The idea is to better understand the progression of ailments that affect the body movement, but also to help older people become more independent.
In fact, the MIT says their team is currently working with doctors to start applying the system in the field of medicine.
Technology is able to effectively identify a person in a row of 100 people in 83% of cases.
"You do not see the details of the person's face or fingers, but you can get an idea of the height and width of the person," he told BBC Fadel Adib, another of the scientists involved in the project
see through the walls, even in high definition, "he added." And probably also through the bodies of people using wireless signals. "
The development was not easy: it took more than a decade and collected thousands of images of people on the move.
The system creates what are called "heat images" and converts them into figures that move in space, identify different parts of the body, and show the movements in a natural way.
Beyond medicine, the system could be used in the field of video games, entertainment or security. [19659002] But it could also have malicious applications or ethical dilemmas.
Only with the consent
One of the main points of his work was to protect the privacy of users.
"If anyone wants to use this technology to monitor someone without their consent, we have a test that has the device checked if the person has given consent," Katabi explains.
"After separating all identified information and we encrypt it ."
"There must be policies that regulate the way technology is used."
Will it be the first steps of a technology that will be ubiquitous in a few years? 19659010] people "height =" 549 "src =" https://c.files.bbci.co.uk/1424C/production/_102480528_gettyimages-154003164.jpg "width =" 976 "/>
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