Drones and artificial intelligence to study rivers, survey them, and identify trunks and branches. And to create maps to be used to assess any exceptional phenomena. This is highlighted by an international study carried out by a pool of researchers, including those from the Polytechnic University of Turin and the Arpa of the Aosta Valley, published under the title “Detection of Large Woody Debris in Braided-Rivers RGB-UAV Dataset: A Comparative Study” in the scientific journal Remote Sensing.
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An overview of the river system
A work that, as Carlo Camporeale, professor at the Polytechnic University of Turin and co-author of the study, points out, allows for a broader view of the river framework. “Through images and the use of artificial intelligence,” he emphasizes, “it is possible to distinguish between woody material and that which has roots, and the endemic environment is also reconstructed.” Not only that: “by comparing images taken at different times, it is possible to understand the evolution and change of rivers.”
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Wood and braided rivers
Characterizing the watercourses, as also noted in the study, are woody debris “with irregular and unpredictable shapes,” often consisting of whole trunks, fragments, confused masses that “when seen from above, in a photograph, easily blend with gravel, stones, and surrounding earth: same color, similar texture, unclear contours.” Not to mention the so-called “braided” rivers that split into many channels and change appearance with every flood, “particularly dynamic and difficult to monitor on a large scale.”
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