Automatic TV advertisement detection from MPEG bitstream

The Centre for Digital Video Processing at Dublin City University conducts concentrated research and development in the area of digital video management. The current stage of development is demonstrated on our Web-based digital video system called Físchlár (Proceedings of the Content based Multimedia Information Access, RIAO 2000, Vol. 2, Paris, France, 12–14 April 2000, p. 1390), which provides for efficient recording, analysing, browsing and viewing of digitally captured television programmes. Advertisement breaks during or between television programmes are typically recognised by a series of ‘black’ video frames simultaneously accompanying a depression in audio volume which separate each advertisement from one another by recurrently occurring before and after each individual advertisement. It is the regular prevalence of these flags that enables automatic differentiation between what is programme and what is a commercial break. This paper reports on the progress made in the development of this idea into an advertisement detector system that automatically detects the commercial breaks from the bitstream of digitally captured television broadcasts

A Compressed-Domain Visual Information Embedding Algorithm For

Many features of traditional TV service are becoming desirable for software multimedia applications to provide open solutions and improve flexibility. In this work, we have studied a new kind of service, what we call "visual information embedding", that comes from the idea of Picture-In-Picture. Based on previous work in MPEG-compressed domain algorithms, we propose a "backtracking " approach that reduces the decoding complexity up to 90% and enables realtime processing on MPEG2 streams at the price of a delay of one Group-Of-Picture period. We have implemented a software realtime visual information embedding gateway for HDTV streams, and the experimental results have shown that our solution is practical and efficient