{"id":68050,"date":"2020-09-16T15:14:00","date_gmt":"2020-09-16T12:14:00","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/how-to-train-a-machine-to-see-3-d-in-the-dark\/"},"modified":"2020-09-16T15:14:00","modified_gmt":"2020-09-16T12:14:00","slug":"how-to-train-a-machine-to-see-3-d-in-the-dark","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/how-to-train-a-machine-to-see-3-d-in-the-dark\/","title":{"rendered":"#How to train a machine to see 3-D in the dark"},"content":{"rendered":"

“#How to train a machine to see 3-D in the dark<\/strong>”<\/p>\n

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Researchers at the Australian National University (ANU) have developed a new way to create an almost perfect hologram in near darkness.<\/p>\n

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Optical holograms are a clever way of producing a 3-D image of an object. They have a number of uses\u2014from protecting our ID cards from forgery, to real-time imaging of living cells.<\/p>\n

The new breakthrough will allow holograms to perform these vital functions and more with a lot less light.
\nAccording to Dr. Steve Lee, the quality of an optical hologram is often linked to the brightness of laser light.
\n“So we asked ourselves, how can we make an optical hologram in almost complete darkness?” Dr. Lee said.
\n“Usually if you form an optical hologram using an extremely low light, the hologram will look very grainy,” Dr. Lee said.
\n“We call this graininess the ‘shot noise limit’\u2014which also occurs when you close your eyes at night. The light speckles you see are actually where your eye is limited by shot noise.”
\nThe research team found a way around this problem using machine learning.
\n“We’ve shown that using very little light\u2014almost pitch black at sub-millisecond imaging speeds\u2014we can still restore a hologram to close to perfect condition.”<\/p>\n

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