Camera Depth Estimation

Discussions center on techniques for computing depth maps and 3D information using standard cameras, including monocular methods, stereo vision, motion parallax, and photogrammetry, often compared to dedicated depth sensors like LiDAR or RealSense.

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Keywords

ICCV e.g app.html AI P3 facebook.com www.doc RGBD DeepFovea BSDF depth camera cameras stereo sensor images single vision pixels motion

Sample Comments

lawik Jun 7, 2017 View on HN

So I hear, but parent wondered if they used the depth data so I figured I'd mention it. Not saying it doesn't work with a single camera :)

farnsworth Nov 22, 2010 View on HN

Couldn't you do this with any webcam and CV? I don't see how the depth component makes it any easier.

mikeleung Apr 16, 2014 View on HN

Yes, the app requires you to move the camera after your initial shot which takes another picture to calculate depth

sigmar Sep 20, 2016 View on HN

2 cameras aren't enough for an accurate depth map though, right? I thought you need infrared.

gmiller123456 Apr 21, 2017 View on HN

There are several ways to do depth mapping with just a single camera. Structure from Motion, and Multiple View Geometry are a couple. Of course, more sensors will usually provide better data. I imagine there are plenty of situation where this app with behave poorly (e.g. low light, scenes with little texture), they just don't show it in the demo.

pksm Nov 19, 2018 View on HN

Great project! It's really interesting that you relied solely on a regular camera for depth perception. Way less expensive than working with RGBD images.

ge96 Apr 17, 2020 View on HN

it says stereo so you need two pictures? I was thinking about the photogramemtry technique, this is great... I mean I wonder how accurate it is(with regard to depth calculation from images on a larger scale like feet) but man impressive

est Apr 26, 2022 View on HN

phones with depth camera surely can help.

spywaregorilla Jan 23, 2023 View on HN

I think that's more of a ocular SLAM kind of thing for depth mapping

bhouston Mar 9, 2018 View on HN

It seems sort of unnecessary to do it from a single image. Just get a little motion of the camera (just a second) and you can get way better estimates for depth.