Exploiting facial side similarities to improve AI-driven sea turtle photo-identification systems

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Lukás Adam, Kostas Papafitsoros, Claire Jean, Alan F. Rees, Vojtech Cermák

Published: 2025, Last Modified: 02 Mar 2026Ecol. Informatics 2025EveryoneRevisionsBibTeXCC BY-SA 4.0
Abstract: Highlights•Left and right facial profiles are visually similar in three sea turtle species.•Deep learning methods detect left–right profile similarities.•Exploitation of this similarity can be translated to higher photo-ID accuracies.•Both profiles should be included in the search dataset when matching a given profile.•A deep embedding model finely trained with a part of the database should be used.•Without a training set, a neural network-based local feature method is preferable.