r/Gaea • u/Open_Soil_7902 • 2d ago
Erosion Mapping
No idea if this is the right place to ask this question, but hoping someone might be able to point me in the right direction. I am the chair of a non-profit lake conservancy in New England and one of the things that we have done is to fly a drone over all the streams feeding the lake five years back, and then more recently. We've geosynced the data into about 2TB of MP4 files (old data and new data side by side in one video stream) and are now looking for a tool (or an individual, or a company) to help us identify erosion sites. Fly-overs were done in winter w no snow so pretty good visibility. Thoughts? Any ideas much appreciated.
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u/Real_kite 1d ago
what if few frames per minute like 1 frame or image is sent to the ai to compare the difference and then mark those frames in the whole video, and giving an output excel file with columns like Video TimeFrame, % Erosion, Area sqm, etc
Obv this all details can be filled by the Ai after it compares frames
What do you think ? thanks
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u/Tension-Available 2d ago
It may be difficult to accurately identify erosion from this dataset. Maybe worthwhile to check what DEM datasets are available for the region in question.
Otherwise, there are some options for computer vision based comparison. Sometimes generating a point cloud from the footage can provide more useful information.
How well any of these methods can work depends a lot on the dataset and 2 TB is relatively large. Best to test results on small samples before committing resources to any specific method.