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> They say "in-the-wild" photography, but of course don't really give you a great sense.

Flickr user photos. Citation shows up in the lower right hand corner during the video.

This appears to be a substantial improvement on current open photogrammetry/structure from motion work [1]. I hope Google supports this making its way into cultural preservation efforts [2].

[1] https://github.com/mapillary/OpenSfM (developed by Mapillary, now part of Facebook)

[2] https://www.nytimes.com/2015/12/28/arts/design/using-laser-s... (Using Lasers to Preserve Antiquities Threatened by ISIS)



Yes, I mostly meant that I don't get a great sense of "how many photos there are" in these datasets.

I saw in the paper their citation [13] pointed to https://arxiv.org/pdf/2003.01587.pdf, which in section 3 says the following:

We thus build on 25 collections of popular landmarks originally selected in [48,101], each with hundreds to thousands of images.

So hundreds to thousands of photos are used, which is a decent quantity, but definitely makes the quality of the result very impressive.




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