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Camera calibration database?

asked 2017-07-13 04:16:26 -0500

doisyg gravatar image

Hello, Is there any camera calibration database maintened somewhere? It seems that there are a couple of very popular usb cam used by the community (like the logitech c920) and even if there are differences between two same camera, using a calibration file from another source but same model could be a good start.

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It would be interesting to have many samples of the same model and get statistical info on how much they vary. And useful to pull down a certain camera and use it in a simulation. There could be a little tool to input sensor sizes and lens parameters and generate a sim cal.

lucasw gravatar image lucasw  ( 2017-07-13 11:17:19 -0500 )edit

I think this is a good idea as well. It could be as simple as a github repo with a bunch of folders and files in it.

gvdhoorn gravatar image gvdhoorn  ( 2017-07-13 11:20:48 -0500 )edit

Pull requests or per-model issue threads could work (copy paste yamls out of comment text, or attached files?), though the maintainers might have a big workload merging it all in. There could be a scripts folder for processing/generating tools.

lucasw gravatar image lucasw  ( 2017-07-13 11:35:23 -0500 )edit

It would be nice to have a place to optionally dump the source calibration images also and link uploaded files to them. Could be random photo sharing sites chosen by the submitter but there'd be compression and link rot.

lucasw gravatar image lucasw  ( 2017-07-13 11:35:34 -0500 )edit

So there is no database yet ;) But good to see that I am not the only interested by the idea.

doisyg gravatar image doisyg  ( 2017-07-13 11:47:54 -0500 )edit

@lucasw: I'm not sure why we couldn't just store the yaml files themselves in the repository? Wouldn't the PRs contain the yamls?

gvdhoorn gravatar image gvdhoorn  ( 2017-07-13 12:01:25 -0500 )edit

They would, but if someone wanted to be able to submit more casually there could be an option of only leaving a comment, or not if the maintainers don't want to support that.

lucasw gravatar image lucasw  ( 2017-07-13 12:06:24 -0500 )edit

I would definitely not support that. If ppl make the effort of looking up such a database I hope they would be willing to make the effort of contributing via pull requests.

gvdhoorn gravatar image gvdhoorn  ( 2017-07-13 12:14:55 -0500 )edit

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answered 2019-09-06 07:55:46 -0500

paroj gravatar image gives you the calibration data for your camera or performs a calibration in the browser, if it does not know it yet.

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answered 2017-07-20 04:50:17 -0500

doisyg gravatar image

Well, I am not sure I will be able to properly maintain a large database, but since I ask, I will share my files here:

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Asked: 2017-07-13 04:16:26 -0500

Seen: 731 times

Last updated: Jul 20 '17