Hello! So I’ve been following this software and technology for quite some time for making 3d models, and decided to get myself a Mavic Mini a couple of months ago. Yesterday I finally made my first missions to capture some images of some structures.
I made a single flight with parallel lines pattern with 80% front and 70% side overlap, at about 40-50mts of height from ground.
Then processed the images with no additional parameters and got these results:
The orthophotos are great, but the 3d models not so. It was somewhat windy, and it was sunny (the house photos were at sunset which I know it’s not the best time to get the images). I know some improvements I can do (flying in overcast weather, and with no wind so there’s less gps error?), but I think there’s more room for improvment.
I believe it is difficult for the software to map vertical surfaces from only nadir photos. Is this the case? If so, is it useful to add another flight with oblique photos as well? Does ODM need to “know” if photos are oblique or nadir? (Like some inclination angle parameter in the img file).
Also, if I make another flight of a portion of the area of interest with lower altitude, to get more texture/model quality of that specific area and feed ODM those images along with the main area images straight away, will that sub area in the 3d model be more detailed?