Team seminar

The RFAI team had the great pleasure of welcoming Petra Gomez, Associate Professor at the L3i Laboratory (Images and Digital Contents group) https://l3i.univ-larochelle.fr/ for a research seminar.

Speaker: Petra Gomez, Associate Professor (MCF HDR) https://l3i.univ-larochelle.fr/personnel-laboratoire/gomez-kramer-petra/

Laboratory: L3i (Images and Digital Contents group) https://l3i.univ-larochelle.fr/

Date: October 1st, 2026

Title: Perceptual hashing and its application in environmental surveillance

Abstract: First, I will present the Images et Digital Contents group of the L3I, before focusing on our recent work on perceptual hashing. Perceptual hashing involves computing a fingerprint of an image based on its perceptually significant content. This method is very fast and efficient and has therefore mainly been used for active image authentication and fast image retrieval. In this talk, I will present the concept of perceptual hashing, its requirements, and its application to environmental surveillance. Specifically, I will present a perceptual hashing-based method for scene change detection, as well as a method for fine-grained image retrieval.

Slides: Download the presentation