Circulant temporal encoding for video retrieval and temporal alignment - Inria - Institut national de recherche en sciences et technologies du numérique Accéder directement au contenu
Article Dans Une Revue International Journal of Computer Vision Année : 2016

Circulant temporal encoding for video retrieval and temporal alignment

Résumé

We address the problem of specific video event retrieval. Given a query video of a specific event, e.g., a concert of Madonna, the goal is to retrieve other videos of the same event that temporally overlap with the query. Our approach encodes the frame descriptors of a video to jointly represent their appearance and temporal order. It exploits the properties of circulant matrices to efficiently compare the videos in the frequency domain. This offers a significant gain in complexity and accurately localizes the matching parts of videos. The descriptors can be compressed in the frequency domain with a product quantizer adapted to complex numbers. In this case, video retrieval is performed without decompressing the descriptors. We also consider the temporal alignment of a set of videos. We exploit the matching confidence and an estimate of the temporal offset computed for all pairs of videos by our retrieval approach. Our robust algorithm aligns the videos on a global timeline by maximizing the set of temporally consistent matches. The global temporal alignment enables synchronous playback of the videos of a given scene.
Fichier principal
Vignette du fichier
paper.pdf (2.92 Mo) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01162603 , version 1 (11-06-2015)
hal-01162603 , version 2 (30-11-2015)

Identifiants

Citer

Matthijs Douze, Jérôme Revaud, Jakob Verbeek, Hervé Jégou, Cordelia Schmid. Circulant temporal encoding for video retrieval and temporal alignment. International Journal of Computer Vision, 2016, 119 (3), pp.291-306. ⟨10.1007/s11263-015-0875-0⟩. ⟨hal-01162603v2⟩
940 Consultations
826 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More