MODELING OF VARIABLE BIT RATE VIDEO

Abstract

Video service refers to the transmission of moving images together with sound. The twentieth century, now almost at a close, has seen the rise and proliferation of both motion pictures and television as methods of visual communication. The impact of these media can hardly be overstated. In the last decade, the television industry has essentially outgrown the limits of terrestrial broadcast, and operators now compete using cabled distribution networks as well as direct broadcast satellites. As a research topic, television is nowadays taken for granted, and the new challenges for video are found in the content of integrated multimedia communications over packet-switching networks. The Internet is the most well known example of a multimedia packet switched network. There is also the telecommunications industry's broadband integrated service network, based on the asynchronous transfer mode (ATM) protocol. Although this technology does not directly reach a large population of end users, it has the quality of service mechanisms necessary to support integrated packet video and, in fact does underlie much of the Internet backbone today. The technical area that often is referred to as "packet video" can be generally defined as the set of problems arising when video is to be transferred by packet-switched networks....