This paper presents a new implementation for realising PALplus signals from High-Definition Television (HDTV) transmissions. A proposed encoder design is introduced, which decomposes the HDTV input into two separate channels, the first of which subsamples the input signal to produce the standard resolution TV signal, and the second derives a digitally compressed residual component. The problems...

An iterative technique is developed for orthogonal frequency division multiplexing (OFDM) systems to mitigate the residual intersymbol interference (ISI) that exceeds the length of the guard interval. The technique, called residual ISI cancellation (RISIC), uses a combination of tail cancellation and cyclic restoration and is shown to offer large performance improvements. The effects of imperfe...

This study investigates the impact of video game image quality on telepresence. Past research has demonstrated positive associations between television image quality and presence and video game technology and presence. No study to date, however, has examined the presence effects of video games played in high definition, which is becoming increasingly common due to the diffusion of new TV techno...

today, mass media act like a magic mirror, not only reflecting the reality of societies, but also projecting a variety of images onto people’s thoughts. because of this great ability to produce, reproduce and disperse images, mass media have acquired considerable influence on people’s lives. among the different media, the television in particular has become an inseparable part of most iranian h...

A technique for enhancing the perceptual sharpness of an image is described. The enhancement algorithm augments the frequency content of the image using shape-invariant properties of edges across scale by using a nonlinearity that generates phase coherent higher harmonics. The procedure utilizes the Laplacian transform and the Laplacian pyramid image representation. Results are presented depict...

This paper presents a new implementation for realising PALplus signals from High-Definition Television (HDTV) transmissions. A proposed encoder design is introduced, which decomposes the HDTV input into two separate channels, the first of which subsamples the input signal to produce the standard resolution TV signal, and the second derives a digitally compressed residual component. The problems...

The World Administrative Radio Conference for Dealing with Frequency Allocations in Certain Parts of the Spectrum (Malaga-Torremolinos, 1992) (WARC-92) made an allocation in the bands 21.4-22.0 GHz in Regions 1 and 3 and 17.3-17.8 GHz in Region 2 to the broadcasting-satellite service (BSS) on a primary basis from 1 April 2007. It has adopted, by Resolution 525 (WARC-92), a set of interim proced...

The goal of the proposed Event99 task is to evaluate event-level indexing into news stories, including news wire, radio, and television sources. The Event99 task is distinguished from earlier, related evaluations in its focus on indexing, its application to multiple media, and the relative extensibility of its task definition to new event types. The task involves identifying instances of high-i...

Digital television broadcast started in Finland on 27 th of August 2001. A new period in this entertainment field has already begun. Because of the importance of television in the society, the shift between analogue and digital has to be done with the viewers in mind. The User Interface of any application provides the user the means to communicate with the system. Since it is what the viewer ca...