Research at Televirtual (Norwich) and the University of East Anglia, funded predominantly by the Independent Television Commission and more recently by the UK Post Office also, has investigated the feasibility of using virtual signing as a communication medium for presenting information to the Deaf. We describe and demonstrate the underlying virtual signer technology, and discuss the language p...

This chapter turns to the application of semantic technologies to areas where text is not dominant, but rather audiovisual content in the form of images, 3D objects, audio, and video/television. Non-textual digital content raises new challenges for semantic technology in terms of capturing the meaning of that content and expressing it in the form of semantic annotation. Where such annotations a...

Video up-conversion takes significant place in various application areas. One of important application areas is standard-definition television (SDTV) video processing to get high-definition television content (HDTV) for broadcast. However, high-quality upconversion is a challenging task. Most practical implementations use spatial domain processing such as video frame interpolation for video up-...

The processing and usage of 3D graphics and video have been becoming very important and popular in many areas. At present, some of these areas seem to grow together. 3D television may become one result of this development. In this paper the ideas of the project “Interactive Audiovisual Application Systems IAVAS” will be presented and it will be explained how the project’s results can be one way...

This dissertation studies the Multimedia Message Services that based on the digital television system, and it is called TVMMS for short. The author discusses the TVMMS architecture, and specifies the address number distributed for every entity and addressing scheme. The TVMMS can perform the following functions: point to point communication between STB, communication between STB (Set Top Box) a...

Digital television broadcast systems based on MPEG can compress video information from hundreds of megabits to less than 5 Mbps with very little user perceived picture quality degradation. This is the case as long as everything goes well. However, given the complexity of today’s digital television broadcast chain, problems can give rise to poor picture quality being delivered to the end user. T...

This paper presents results of a user study including ten users. The study participants gathered data on themselves in their home environment over a three-day period. They also designed innovations of future interactive applications for digital television. A subsequent interview with the researcher revealed more of the study participants’ thoughts of the interactive applications for digital tel...

The purpose of this research is to investigate methods for applying speech recognition techniques to improve the productivity of off-line captioning for television. We posit that existing corpora for training continuous speech recognisers are unrepresentative of the acoustic conditions of television soundtracks. To evaluate the use of application specific models to this task we have developed a...