Délinéarisation automatique de flux de télévision

Gaël Manson 1, 2
2 TEXMEX - Multimedia content-based indexing
IRISA - Institut de Recherche en Informatique et Systèmes Aléatoires, Inria Rennes – Bretagne Atlantique
Abstract : TV streams are structured : they consist of consecutive television programs (news , movies, magazines, etc.) and of inter-programs (commercial, trailer, sponsoring, etc.). As soon as they are broadcasted on the air, the TV streams lose unfortunately all information on their structure. The main problem of this thesis is to automatically recover, from the received linear audio/visual signals and using the possible available metadata provided by TV channels, the original structure of the TV streams, with the exact start and the exact end of each broadcasted program. This thesis presents a full system for automatic TV stream structuring that has been rigorously evaluated on four weeks of real TV streams, on two different TV channels. The system makes use of the repetition property of the inter-programs. A first segmentation step based on repeated video sequence detection is performed. Resulting segments (the occurrences of repeated sequences and the rest of the stream) are then classified in program segments or in inter-program segments. The proposed classification solution is based on Inductive Logic Programming. It makes use of neighboring relations between segments. Finally, detected program segments are labelled using metadata and those that belong to the same TV program are reunified. When metadata are not available, program segments of the same TV program can only be reunified based on visual and structure similarities.
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Submitted on : Tuesday, October 5, 2010 - 9:03:43 AM
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  • HAL Id : tel-00512675, version 2

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Gaël Manson. Délinéarisation automatique de flux de télévision. Interface homme-machine [cs.HC]. Université Rennes 1, 2010. Français. ⟨tel-00512675v2⟩

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