A holographic camera recognizes in a split second what is hiding around the corner

“Blind” turns are one of the main problems of all drivers. Researchers at Northwestern University in the United States (NU) have developed technology to literally “peer” around corners and detect cars and pedestrians.

We see any object when light falls on it, and part of the light reflected from it is captured by the retina of our eye. However, this “scheme” does not work if the object is hidden by other objects or scattering media, for example, fog. But it is quite possible to use diffused light from several objects in order to still look “around the corner”.

A system developed by American scientists emits light that is reflected from the surface of an object. Then the reflection comes back, and this is fixed by the sensor. As a result, algorithms form an image of an invisible object. The main disadvantage is the low image resolution. It takes more processing time to fix it.

The essence of the new technology is the fusion of light waves from two lasers into one synthetic wave that generates three-dimensional holographic images. According to the developers, the system is capable of fixing small fragments of objects hidden in a large angular field of view within 50 milliseconds. This is enough to detect an approaching car or pedestrian around the corner.

The technology will not only allow vehicles to respond to hidden dangers, but also use endoscopes to be used in industry and medicine, where, for example, using the system cameras, it will be possible to examine the internal organs of a person.

Source – Northwestern University

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