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Teach an Earth-observing satellite to know what it sees

Written by  Wednesday, 25 May 2022 08:32
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OPS-SAT – the flying laboratory

For decades now Earth observation satellites have been monitoring our ever-changing home planet; the next step is to enable them to recognise what they see. The latest public challenge for the machine learning community from ESA’s Advanced Concepts Team is to train satellite software to identify features within the images it acquires – with the winning team getting the unique opportunity to load their solution to ESA's OPS-SAT nanosatellite and test it in orbit.

Tile classes
Tile classes

“With our new ‘OPS-SAT case’ competition, we seek to take this approach further. Participating teams receive 26 full-sized images acquired by the OPS-SAT CubeSat, which include small 200x200-pixel crops or ‘tiles’ identified with one of eight different classifications – Snow, Cloud, Natural, River, Mountain, Water, Agricultural, or Ice – with a total of ten examples of each type, representing a baseline for feature identification.”

Dario Izzo, heading the ACT, says: “This challenge is an example of AI ‘few-shot learning’. As humans we don’t have to see a lot of cats to learn what is or isn’t a cat, just a few glimpses will be enough. What is needed for future space missions is an AI system that can form a concept from only limited examples given. This is a very challenging and modern problem from the AI point of view, and there is no commonly recognised way of achieving this.”


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