A team of engineers at Purdue University in West Lafayette (Indiana, USA) has created a system that can use Wi-Fi for high-resolution 3D video communication on mobile devices. The developers are confident that the new holographic technology will be in demand in medicine and criminology, writes Engineer. The system called Holostream converts 3D video into a 2D format and uses standard compression algorithms to render the data, which makes it possible to use it on standard Wi-Fi networks. In order to take advantage of the technology, you must first scan the object with a 3D camera. Images are formed by projecting structured patterns that allow the camera to determine the shape and depth of an object. Then the system represents the scanned object as a grid of intersecting lines that form triangles. The overlay on this grid of ordinary 2D-video gives the object a texture and makes it realistic. This allows you to record, compress, transfer and unpack holographic video in real time. "As far as we know, this system is the first of its kind to transmit high-resolution 3D content in real time on standard wireless networks," said lead researcher Song Chan, who will present his team's research at the Imaging 2018 conference in California. "Modern video compression methods are effective enough to use 2D video on standard wireless networks," says Chan. - If the 3D image is accurately converted to 2D, then existing video platforms can now support a three-dimensional image ". The accuracy of image transmission, according to the developers, will allow using Holostream for diagnosing diseases such as depression and post-traumatic syndrome. In addition, three-dimensional video will improve the technology of remote control of medical equipment for complex surgical operations.

Original article: A holographic videophone was developed.