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Seeing Around Corners Using Smartphone-Grade Lidar

spectrum.ieee.org

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Re: Seeing Around Corners Using Smartphone-Grade Lidar

#21

Post by yyyk »

noman-land wrote: post #15
cuechan wrote: post #2

Why not just place a mirror at 45 degrees in the corner? That way you don't need the lidar but you can just look around the corner? It would also work better with the lidar.

Mirrors allow two-way looking.

That's easily worked around (e.g. fisheye and appropriate correction). The real problem is that the scenarios discussed don't allow for setup, otherwise they could just use preplaced cameras...

Re: Seeing Around Corners Using Smartphone-Grade Lidar

#22

Post by momoschili »

aftbit wrote: post #20
momoschili wrote: post #13

Earlier quoted context omitted.

depends on what phone you have but LIDAR sensors are used for more than just faceID

Like what? Portrait mode? I have a Pixel 8 which I believe does something else to fake depth maps.

Pixel 8 uses a version of stereo imaging but at the pixel level instead of at the full sensor level. It's not fake at the base level, the physics of it allow for depth information to be retrieved this way (compared to most monocular deep depth for example, which does not)

IDK about other manufacturers, but the iPhone Pros have a pretty good measurement app that uses LIDAR, there's some augmented reality apps that use it, and it's also used for autofocus in dark environments. There's plenty of ways to use depth information.

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