Hi there, I’m wondering if it’s possible to import camera calibration parameter into CapturingReality, like that one?
I have project with ~1500 images where i was trying to map about 3km long foreshore planar surface, I used DJI P4 Pro drone, no ground control points.
I tried to align pictures together in RC but it always gives me result with bowl/banana effect. I tried to use different lens distortion setting and Brown3 with tangential2 seems to work the best but it’s still far away from perfect results. I tried different alignment setting still not helps. Now I was thinking about importing camera calibration file and I hope that will help me get rid of bowl shape.
this is a typical behaviour for long, flat surfaces. Tiny errors add up.
Did you delete all components before you started and use Exif Grouping?
If that does (or did) not help, then I would create a few Control Points along the water edge (if you have that), turn them into Ground Control Points and manually copy the X and Y coordinates into the “should be” fields and set the Z value (height) to the same (e.g. 0). Then you need to delete all components again and re-align and hopefully the surface is as it should be.
Can’t help you with importing calibration parameters but you should be able to find something here in the forum…
I couldn’t follow your suggestion and create few control point along water edge and set fix Z value for them as it took me about 5 hours to collect all images and water level change because of the tide.
But I was able to follow Zuzana’s suggestion and I managed to change Prior calibration and Lens Distortion parameters. It actually helps a bit, gives me more ‘flat’ surface but it’s still not perfect. Definitely proper ground control point are welcome on this kind of work.
