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Share Scientists have found a way to equip everyday objects like smartphones and laptops with a bat-like sense of their surroundings. At the heart of the technique is a sophisticated machine-learning algorithm which uses reflected echoes to generate images, similar to the way bats navigate and hunt using echolocation. The algorithm measures the time it takes for blips of sound emitted by speakers or radio waves pulsed from small antennas to bounce around inside an indoor space and return to the sensor. A diagram showing the experimental setup which allows the researchers’ algorithm to convert sound into images By cleverly analysing the results, the algorithm can deduce the shape, size and layout of a room, as well as pick out in the presence of objects or people. The results are displayed as a video feed which turns the echo data into three-dimensional vision. ....
Share This The FINANCIAL Scientists have found a way to equip everyday objects like smartphones and laptops with a bat-like sense of their surroundings. At the heart of the technique is a sophisticated machine-learning algorithm which uses reflected echoes to generate images, similar to the way bats navigate and hunt using echolocation, according to University of Glasgow. The algorithm measures the time it takes for blips of sound emitted by speakers or radio waves pulsed from small antennas to bounce around inside an indoor space and return to the sensor. By cleverly analysing the results, the algorithm can deduce the shape, size and layout of a room, as well as pick out in the presence of objects or people. The results are displayed as a video feed which turns the echo data into three-dimensional vision. ....
Researchers were inspired by echolocation used by bats to hunt and navigate They sent blips of sound from a speaker to bounce around an indoor space A machine learning algorithm times how long the signal takes to come back That data is then used to generate a picture of the space and objects around it The team say it can work from any device with a speaker and microphone ....
Researchers say it could help keep buildings intruder-proof without the need for traditional CCTV. 29 April, 2021 23:01 Scientists have created a tool to equip objects like smartphones and laptops with a bat-like sense of their surroundings. A machine-learning algorithm developed by experts at the University of Glasgow can measure echoes and sounds to generate images and create the shape, size and layout of the immediate environment. Researchers say it could help keep buildings intruder-proof without the need for traditional CCTV, track the movements of vulnerable patients in nursing homes, and even track the rise and fall of a patient’s chest to alert health staff to changes in breathing. ....
New technology could also alert smartphone zombies on the street to obstacles 30 April 2021 • 6:00am Bat-like sonar for phones could be used to spot falls among the elderly or alert smartphone zombies to obstacles, say scientists. Researchers at the University of Glasgow have developed a new eco-sensing tool that gives phones, laptops and smart speakers a bat-like ability to see what s around them just by using audio waves. In a paper released today, Dr Alex Turpin and Dr Valentin Kapitany said their technology means any device with a speaker and a microphone can now be installed with software able to map out its immediate surroundings. ....