WSEAS Transactions on Information Science and Applications
Print ISSN: 1790-0832, E-ISSN: 2224-3402
Volume 12, 2015
Video Analysis in Interactive Application of Digital Television
Authors: ,
Abstract: A digital television system can provide sounds and images of better quality than an analog broadcast system. But that is not all. The Brazilian digital terrestrial television system adopted in 2006 also makes it possible to receive TV signals on portable devices and mobile television receivers besides enabling interactivity. This paper consider digital terrestrial television, which is the digital television broadcast over the air, free of charge to all population, and presents a video analysis based in the Quality of Experience (QoE) that was made measuring the user perception with an interactive application of digital terrestrial television. Such an application was developed using NCL (Nested Context Language), which is the standard declarative programming language of Brazilian digital television system called Integrated Services Digital Broadcasting - Terrestrial Brazil (ISDB-TB). In that application a secondary video is loaded through a broadband Internet access simultaneously with the main video being received through broadcasting. A test platform was created where IP packet loss was introduced in a controlled way affecting the secondary video, as it is expected to occur in a real network. Video quality was assessed for each loss level with objective metrics in order to compare QoE in each situation. The objective of this research is to verify if it is feasible to use the broadband Internet as a return channel of an interactive application of Brazilian digital television.
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Keywords: Digital television, ISDB-TB, Transmedia, QoE, Video signal processing, Broadcast, Broadband
Pages: 130-137
WSEAS Transactions on Information Science and Applications, ISSN / E-ISSN: 1790-0832 / 2224-3402, Volume 12, 2015, Art. #12