The tradeoff between picture quality and bandwidth usage is one of the most prominent issues in the world of broadcasting. Since broadcasters are able to simultaneously transmit multiple streams in a channel, they face the challenge of guaranteeing a certain picture quality required by each of the video streams transmitted while maximizing the number of video streams carried in each channel. To...

Due to the increase of users the efficient usage of spectrum plays an important role in digital terrestrial television networks. In digital video broadcasting, local and global content are transmitted by single frequency network and multifrequency network respectively. Multifrequency network support transmission of global content and it consumes large spectrum. Similarly local content are well ...

“Media Me” is a media interactive art work which comments on the bidirectional relationship between people and the media through the use of a realtime video mosaic. The elements of the video mosaic could be personal, cultural, historical, and educational. This research can be considered as a combination of creativity, art, and digital entertainment as well as an extension of personal media broa...

In this paper we describe the potential of multi-antenna techniques (MIMO) in the context of digital video broadcasting (DVB) systems. DVB standards have been challenged by the increasing demand of high data rate applications and larger indoor coverage area. MIMO is a key technology to increase the system capacity and link reliability without any additional bandwidth or transmit signal power. T...

Video signals can be divided into two categories; analog and digital. Both use a variety of standards, formats, and available interfaces. Analog video had been the broadcast standard in the United States since it’s inception, however, in 2009 it was fully replaced by digital video broadcasting. Nonetheless, analog video is still used in many systems today. One good example is closed circuit sec...

Digital Video Broadcasting (DVB) is a standard defining a one-to-many unidirectional data network for sending digital TV programs over satellite, cable, and other topologies. The standard enables the broadcasting industry to offer hundreds of pay-TV channels to consumers. The expanded capacities make the broadcast signals more valuable and attractive to signal thefts [1]. To protect a DVB data-...

Television production has shifted rapidly from an analog process to one where virtually all programs are created and finalized as digital files. Such productions in public television are at great risk of being lost, because practices for long-term preservation of digital video are just now emerging, and because there is no mandate for preservation within the public broadcasting system. NDIIPP f...

Extension of video recording times and further reduction in network traffic loads require that video data compressed with the MPEG-2 format used for digital terrestrial broadcasting and other types of broadcasting be converted to the H.264 format, which has a higher data compression rate. It is also desirable that H.264 video data itself be converted to an even lower bit rate. This paper introd...

As digital technology over open networks evolves, commercialization of video streams is coming of age. Traditional models for video stream commercialization suffer from copyright infringement as digital technologies allow for easy and low cost reproduction of digital content. Models for the commercialization of video streams that preserve copyrights and scale well to a large number of users wou...

Images form integral part of interactive services broadcasted in digital television. Natural images compression is always trade-off between visual quality and file size. Annoying artifacts arise in highly compressed images. The scope of this article is to investigate the possibilities of image compression enhancement for interactive services. The aim is to decrease size of the image file in suc...