This would be cool in a futuristic technothriller, or even a supers story (with an AI providing augmented reality, perhaps). <\/p>\n\n\n\n
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Originally shared by Kam-Yung Soh<\/strong><\/p>\n\n\n\n <\/p>\n\n\n\n An interesting article summarising the research being done in this field: from sensing changes in available light to shining a predetermined light pattern and sensing the reflections.<\/strong> “In their first paper, Freeman and Torralba showed that the changing light on the wall of a room, filmed with nothing fancier than an iPhone, can be processed to reveal the scene outside the window. Last fall, they and their collaborators reported that they can spot someone moving on the other side of a corner by filming the ground near the corner. This summer, they demonstrated that they can film a houseplant and then reconstruct a three-dimensional image of the rest of the room from the disparate shadows cast by the plant\u2019s leaves. Or they can turn the leaves into a \u201cvisual microphone,\u201d magnifying their vibrations to listen to what\u2019s being said.<\/p>\n\n\n\n […]<\/p>\n\n\n\n Along with the accidental-camera work aimed at picking up on small intensity changes, Freeman and his colleagues also devised algorithms for detecting and amplifying subtle color changes, such as those in a human face as blood pumps in and out, as well as tiny motions \u2014 the trick behind talking chip bags. They can now easily spot motions as subtle as one-hundredth of a pixel, which would normally be buried in noise.<\/p>\n\n\n\n […]<\/p>\n\n\n\n While Freeman, Torralba and their prot\u00e9g\u00e9s uncover images that have been there all along, elsewhere on the MIT campus, Ramesh Raskar, a TED-talking computer vision scientist who explicitly aims to \u201cchange the world,\u201d takes an approach called \u201cactive imaging\u201d: He uses expensive, specialized camera-laser systems to create high-resolution images of what\u2019s around corners.<\/p>\n\n\n\n […]<\/p>\n\n\n\n When asked about the privacy concerns raised by the recent discoveries, Freeman was introspective. \u201cThat\u2019s an issue that over my career I\u2019ve thought about lots and lots and lots,\u201d he said. A bespectacled camera-tinkerer who has been developing photographs since he was a child, Freeman said that when he started his career, he didn\u2019t want to work on anything with potential military or spying applications. But over time, he came to think that \u201ctechnology is a tool that can be used in lots of different ways. If you try to avoid anything that could ever have a military use, then you\u2019ll never do anything useful.\u201d He added that even in military situations, \u201cit\u2019s a very rich spectrum of how things can be used. It could help someone avoid being killed by an attacker. In general, knowing where things are is an overall good thing.\u201d<\/p>\n\n\n\n <\/p>\n\n\n\n What thrills him, though, is not the technological possibilities, but simply to have found phenomena hidden in plain view. \u201cI think the world is rich with lots of things yet to be discovered,\u201d he said.”<\/p>\n\n\n https:\/\/www.quantamagazine.org\/the-new-science-of-seeing-around-corners-20180830\/<\/a><\/p>\n ","protected":false},"excerpt":{"rendered":" This would be cool in a futuristic technothriller, or even a supers story (with an AI providing augmented reality,…
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