Can we make a camera see behind walls? [video]
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Re: Can we make a camera see behind walls? [video]
#2Sadly this post will probably get buried because it's a video link, but it really deserves some front page coverage.
This project involves a bunch of different disciplines, and I'm always amazed by what Shane can do in his (very expensive) mad science lab.
Re: Can we make a camera see behind walls? [video]
#3Amazing engineering here, but isn't this equivalent to raising your camera above the wall and then snapping a pic? This wasn't really seeing behind walls in the sense I expected.
Re: Can we make a camera see behind walls? [video]
#4Very misleading.
Re: Can we make a camera see behind walls? [video]
#5It’s called a window
Re: Can we make a camera see behind walls? [video]
#6Vaguely related. Recently discovered that the 24ghz radar units I’ve got go through walls. Not solid brick walls though
Re: Can we make a camera see behind walls? [video]
#7This reminds me of MIT’s work on femto-photography to see around corners. They used ultrafast laser pulses to bounce light off walls, capturing the reflections from hidden objects. By analyzing the time-of-flight data, they could reconstruct 3D shapes of objects not in direct view.
https://web.media.mit.edu/~raskar/cornar/>
Re: Can we make a camera see behind walls? [video]
#8Amazing engineering here, but isn't this equivalent to raising your camera above the wall and then snapping a pic? This wasn't really seeing behind walls in the sense I expected.
The idea of a camera that can design its own lens by shifting the sensor in a large area is interesting on its own, but the 'hook' is it can "see behind things" by being so large.
The title appeals to a broader audience, and technically it's true, if comparing to any typical camera or working human eyeball arrangement.
Re: Can we make a camera see behind walls? [video]
#9Sadly this post will probably get buried because it's a video link, but it really deserves some front page coverage. This project involves a bunch of different disciplines, and I'm always amazed by what Shane can do in his (very expensive) mad science lab.
I really wish HN would have a ‘video’ tag link at the top next to ‘new’, ‘show’, and ‘ask’.
Over the years I’ve written various scripts and tools to only grab yt links or posts with [video] in the title from the HN api.
Be nice if I could just click the link at the top rather than rebuilding each time I lose the old ones. :)
Re: Can we make a camera see behind walls? [video]
#10This reminds me of MIT’s work on femto-photography to see around corners. They used ultrafast laser pulses to bounce light off walls, capturing the reflections from hidden objects. By analyzing the time-of-flight data, they could reconstruct 3D shapes of objects not in direct view. https://web.media.mit.edu/~raskar/cornar/ >
Using a projector and computing the light field (i.e. single pixel, controlled light source) it is also possible to look around corners.
It's probably easier to achieve than time of flight of photons.