Scalable Content-Based Video Copy Detection for Stream Monitoring and Video Mining

par Sébastien Poullot

Thèse de doctorat en Informatique

Sous la direction de Michel Crucianu.


  • Pas de résumé disponible.

  • Titre traduit

    Passage à l'échelle de la détection des copies vidéos par le contenu. Applications à la surveillance de flux vidéos et à la fouille de base vidéos


  • Résumé

    This thesis essentially adresses the scability of the indexong methods of vectorial databases. The applications concern the similarity-based search of video descriptors in large volumes in order to perform content-based copy detection. On one hand we want to perform an online monitoring of a video stream on a reference database, containing here 280000 hours of video, which means 17 billions of descriptors. The proposed solution is based on a new indexing and probalistic searching method based on a Zgrid, but also on a distorsion of the video descriptors and on a local density model. The goal is to perform a more selective and so faster similarity search. Here we can handle the monitoring of one video stream on the 280000 hours database in a differed real time with a single standard PC. On the other hand we want to detect the occurences of the videos in a such a large database. The problem become quadratic, here a similarity self join of the descriptor database must be performed. Here we propose a new global description of the frames based on a local descriptions to reduce complexity while conserving a good tobustness. We also propose an indexing scheme apated to this task which presents moreover an easily parrallel scheme in order to mine the previously announced volumes. Our tests have been performed on dtabases containing up to 10000 hours of video in 80 hours with a single standard PC

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La version de soutenance existe sous forme papier

Informations

  • Détails : 1 vol. (135 p.)
  • Annexes : Bibliogr. p. [127]-135

Où se trouve cette thèse ?

  • Bibliothèque : Conservatoire national des arts et métiers (Paris). Bibliothèque Centrale.
  • Non disponible pour le PEB
  • Cote : Th A 627
  • Bibliothèque : Conservatoire national des arts et métiers (Paris). Bibliothèque Centrale.
  • Disponible pour le PEB
  • Cote : Th A 627 double
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