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Photogammetry

Started Sep 5, 2019 | Discussions thread
OlavValo
OlavValo New Member • Posts: 3
Re: Photogammetry

Very inspiring. I bought 3Dzephyr on Steam in 2017 and have tried it a couple of times. Usually I get 1 out of 10 ok-ish. But mostly, they are complete failures. The best scan I did was a huge statue in Berlin a couple of years ago. I used a Sony RX1 and took about 30 pictures walking around that statue. It was about 10 meters high. I wish I could share it, but the harddrive that had it on crashed som time ago.

In my experience it works best with matte objects. Glossy surfaces reflect the light different depending on the angle you take the picture and I guess that confuses the software. Using diffusers didn't improve the result in my case.

I tried to scan an acoustic guitar a couple of weeks ago (my first attempted scan in 2 years), and it failed miserably. The main problem I believe is to reduce the glare from the surface. I was thinking about spraying something, maybe som sort of dust or equal on the guitar to reduse the gloss.

I was hoping to find a way to scan more valuable instruments, like old violin-type historic instruments. But I can't see that spraying anything on them would be acceptable, because of the value of these historic instruments.

I just do it for fun, but if I find a good solution it may be useful to some people I know.

Anyway, just my 2 cents and very inspiring work there Gregory360!

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