GAF-Net: Video-Based Person Re-Identification via Appearance and Gait Recognitions


  • Boujou Moncef
  • Iguernaissi Rabah
  • Nicod Lionel
  • Merad Djamal
  • Dubuisson Séverine


  • Deep Learning
  • Computer Vision
  • Person Re-identification
  • Gait Recognition
  • Representation Learning

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Video-based person re-identification (Re-ID) is a challenging task aiming to match individuals across various cameras based on video sequences. While most existing Re-ID techniques focus solely on appearance information, including gait information, could potentially improve person Re-ID systems. In this study, we propose, GAF-Net, a novel approach that integrates appearance with gait features for re-identifying individuals; the appearance features are extracted from RGB tracklets while the gait features are extracted from skeletal pose estimation. These features are then combined into a single feature allowing the re-identification of individuals. Our numerical experiments on the iLIDS-Vid dataset demonstrate the efficacy of skeletal gait features in enhancing the performance of person Re-ID systems. Moreover, by incorporating the state-of-the-art PiT network within the GAF-Net framework, we improve both rank-1 and rank-5 accuracy by 1 percentage point.

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