Agisoft Metashape

Agisoft Metashape => General => Topic started by: Tyler J on April 28, 2014, 11:02:07 AM

Title: Is there a minimum resolution for photoscan?
Post by: Tyler J on April 28, 2014, 11:02:07 AM

Hi,

I trie to do a webcam based scan it did not match anything.
After I downsized with paint a set of photos taken with regular cameras to
2Mpix and it did not match any of them.

At their standard size (18Mpix) there is no problem.

So I was wondering, is there a minimum resolution for photoscan?

Thanks.

Title: Re: Is there a minimum resolution for photoscan?
Post by: James on April 28, 2014, 11:22:24 AM

don't think so, attached was taken from 640x480 stills from a video taken on a sony dsc-w120 cheapo point and shoot.

Title: Re: Is there a minimum resolution for photoscan?
Post by: Tyler J on April 28, 2014, 01:28:13 PM

may be it has to be taken in 2Mp and not reduced by a software

Title: Re: Is there a minimum resolution for photoscan?
Post by: Alexey Pasumansky on April 28, 2014, 01:32:53 PM

Hello Eildosa,

Probably the EXIF information is lost during this downscale operation, so I recommend to correct initial calibration settings according to the downscale coefficient.