Agisoft Metashape

Agisoft Metashape => General => Topic started by: Jumboo on July 05, 2018, 04:30:42 PM

Title: I have a question about camera calibration
Post by: Jumboo on July 05, 2018, 04:30:42 PM
Hello guys,

I'm a Uni student. Now i'm trying to do a project with Photoscan.

I know that there is a auto calibration of photos while making a 3D model. But sometimes it might work very well (such as not enough light), so i'm trying to do some manual camera calibration with other software (openCV or matlab).

I want to compare the result of manual calibration and  the auto calibration of photoscan and choose the right methode bevor i start my work.

But now i have a question: which kind of result (or which parameter) can i use, to compare the 2 way of caibration?

Can somebody help me?

Best Wish, :)

Jumboo
Title: Re: I have a question about camera calibration
Post by: SAV on July 11, 2018, 04:00:32 PM
Hi Jumboo,

If you are using a non-metric camera (e.g., standard DSLR, mirrorless camera or a DJI drone with built in camera) then it is NOT recommended to perform a manual camera calibration but using ground control points and the self calibration.

Note that you could also do a manual calibration in PhotoScan (TOOLS > LENS) in case you have a metric camera. No need for Matlab or openCV.

Regards,
SAV