The educational role of television has been one the most discussed issues in almost every period, both for its technical development and dissemination quality programs. This study investigates establishment relationship between education Turkey, definition changes. The change approach toward from early years broadcasting to first half 1990s, when mul...

• Needed Narrowing (NN) is the standard operational mechanism of functional logic languages. • The definition of NN makes use of the notion of a definitional tree. • A Definitional tree is a structure which contains all the information about the program rules defining a function and guides the computation. • A great effort has been done to provide these languages with high level implementations...

Abstract Our research concentrates on developing a novel HDTV content management system that enables end users to search, retrieve, and browse archived standard definition (SD) and high definition (HD) television material for program production and content repurposing in a digital television studio. We have developed the first system that automatically analyzes motion occurring in MPEG-2 coded ...

The improvement of the Brazilian system of interactive Digital Television (iDTV) has amplified usage perspectives for television in the educational realm, due to new possibilities of interaction. Thus, there is a growing discussion over the development of educational content that will address the needs of this new reality. The present article describes concepts of the technological, communicati...

We evaluate the performance of various retransmission schemes to achieve the goal of less than one visible distortion in twelve hours for High Definition Television. The focus is on an indoor wireless link and a DSL link, and we consider systems where the packets are protected by means of retransmissions with and without Forward Error Correcting (FEC) codes. In order to achieve a satisfactory p...

Recently, images and video are being extensively used in numerous areas such as video-conferencing, multimedia documentation, telemedicine, high definition television (HDTV) etc. These diverse applications can benefit from the design of a family of image compression algorithms that address their specific needs. We propose a framework for wavelet-based image compression that leads to a family of...