%0 Journal Article
%T Automatic TV Broadcast Structuring
%A Ga£żl Manson
%A Sid-Ahmed Berrani
%J International Journal of Digital Multimedia Broadcasting
%D 2010
%I Hindawi Publishing Corporation
%R 10.1155/2010/153160
%X TV broadcast structuring is needed to precisely extract long useful programs. These can be either archived as part of our audio-visual heritage or used to build added-value novel TV services like TVoD or Catch-up-TV. First, the problem of digital TV content structuring is positioned. Related work and existing solutions are deeply and carefully analyzed. This paper presents then DealTV, our fully automatic system. It is based on studying repeated sequences in the TV stream in order to segment it. Segments are then classified using an inductive logic programming-based technique that makes use of the temporal relationships between segments. Metadata are finally used to label and extract programs using simple overlapping-based criteria. Each processing step of DealTV has been separately evaluated in order to carefully analyze its impact on the final results. The system has been proven on a real TV stream to be very effective. 1. Introduction Broadcasted digital TV contents have incredibly increased over the last few decades. The resulting huge and continuously growing content has given rise to many novel services around TV and video platforms like TV-on-Demand (TVoD), interactive TV, Catch-up-TV, Network Personal Video Records (NPVRs), and so forth. This content is also part of our audio-visual heritage and must be properly archived. Archiving digital TV content is generally achieved by national public institutions like INA in France, Beeld en Geluid in Netherlands, ORF in Austria or BBC archives in UK. Therefore, the digital TV content has to be analyzed and indexed in order to be used within services and to be easily retrieved from archives. Basically, analyzing and indexing a digital TV content consists in finding key instants in the content. These correspond to events of interest (e.g., goals in soccer footage or key scenes in a movie) users may like to directly find through either search engines (in the case of querying an archive) or services built on top of the content. These key instants could also be features and positions that allow structuring the content. Here, the objective is twofold: to properly prepare the content before archiving it in order to easily answer user queries later on; (2) to repurpose the content in another more convenient format to final users. In the case of TV structuring, the main key instants are the start and end times of each program in TV broadcasts. These times allow automatically recovering the structure of the TV stream. They are at the root of novel added-value services or any archiving service. They allow
%U http://www.hindawi.com/journals/ijdmb/2010/153160/