I’m trying to process data from a repeat survey. We are collecting data at approximately quarterly intervals on the same site to measure changes, but I’m struggling to get good repeat results. I’m confident in the quality of both datasets, as the original images were collected with the same drone and are really nice and sharp.
The first dataset was collected and processed around June 2020. The second dataset was collected and processed this month, with the latest version of ODM. Unfortunately I don’t have the processing settings recorded from 2020.
I’ve been trying to work through the products to find where the issues are coming from, and I seem to be able to trace them all the way back to the point cloud. I’ve tried increasing pc-quality and feature-quality to ultra, as well as reducing pc-filter strength, but to no avail. I’d really appreciate any suggestions of what else I can do to obtain results like I used to!
Survey processed in 2020
Survey processed in 2021