This AI maps coral reefs with unprecedented efficiency and speed

Coral reefs, while occupying a minuscule portion of the ocean's surface, are ecosystems of paramount importance to marine biodiversity and global food security. However, they are threatened by various factors such as ocean warming and pollution, making their study and conservation essential.


A significant breakthrough in this field is the use of artificial intelligence developed at the EPFL, which allows for the creation of detailed 3D maps of coral reefs in just a few minutes from underwater images. This technology opens new perspectives for the exploration and preservation of reefs, as highlighted by Samuel Gardaz, project coordinator of the Transnational Red Sea Center.

Traditionally, 3D mapping of coral reefs was an expensive and resource-intensive task, requiring hundreds of images from the same reef area, as well as expert intervention. Now, even amateur divers can collect data simply by swimming over reefs with a standard camera, thanks to a system developed by the EPFL.

This system uses artificial intelligence capable of processing underwater images, thus overcoming challenges related to lighting and water distortion. Additionally, it incorporates algorithms that classify corals based on their health status and shape, making the work of field biologists easier.

Thanks to this new technology, scientists now have a foundation to add other data, such as reef species diversity, population genetics, and corals' adaptability to warmer waters. This could lead to the creation of a complete digital reproduction of coral ecosystems.


Thus, the use of artificial intelligence for mapping coral reefs represents a major advancement in the field of marine research and conservation, offering new opportunities to understand and protect these valuable ecosystems.