Currently working on a 2600 acre “pet project” that I started last year and finaly getting around to processing the data. The project consists of 17 overlapping Drone Deploy flight plans for a total of approximately 8700 photos. Flown at 400’ AGL. I am starting to process large chunks of adjoining flight plans to dial in the best settings before I kick off the whole enchilada. So it looks like the ortho portion is going well. However, I have noticed some anomalies between certain plans when the DTM does not mesh precisely in the vertical component where they are stitched together. In the two attached photos you can see the wall formed between the stitching. In this view there is about a 15 meter “cliff” formed between these two plans. On another plan there is about a 5 meter cliff between the stitching. Has anyone seen this type of anomaly in the past and am I overlooking something in the settings. Settings are below:
Thanks in advance and Merry Christmas. David
Options: auto-boundary: true, camera-lens: brown, crop: 0, dem-resolution: 100, dsm: true, dtm: true, matcher-neighbors: 20, min-num-features: 18000, smrf-scalar: 1.3, smrf-slope: 0.05, smrf-threshold: 0.3, smrf-window: 150, use-hybrid-bundle-adjustment: true
The DTM illustrating the “Cliff”.
The contours with ortho.