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Video-audio digital interactive system. Digital television at bit rates up to about 10mbit/s.

Development of a european enabling technology for digital
television at bit rates up to about 10mbit/s, including the
development of related microelectronics.

Primary goal of the project is the development of a European enabling technology for digital television at bit rates up to about 10 Mbit/s, including the development of the related microelectronics. The motivations for the project are the current activity carried out within the ISO for the definition, by the end of 1992, of a generic standard for coded representation of audiovisual information at bit rates up to about 10 Mbit/s. There is common agreement that such a generic standard will open up new possibilities of products and services, such as interactive multimedia applications and will be used in several different application areas e.g. digital broadcasting, digital distribution over cable, storage and retrieval on digital storage media, television distribution and audiovisual communication over asynchronous transfer mode (ATM) networks (e.g. B-ISDN, Local Area Network (LAN), Metropolitan Area Network (MAN), etc.). In the worldwide standardization area of audiovisual coding matters there is a strong North American and Far Eastern presence, the former bringing the excellence of their VLSI technology and the latter the power of their product development and manufacturing capability. Unless a strong and unified European presence is secured by means of a co-ordinated action there is a risk that the definition of the standard and its subsequent exploitation will confine the European hardware and software industry to a marginal role. To achieve the goal of enabling the European industry to timely exploit the standard, the project will have a duration of 30 months and will be organised in the following work packages (WPs): Requirement definition (months 1 - 6) In this WP the constraints coming from the different application areas envisaged will be analysed and its impact on the compression algorithm identified. Virtually all partners in the project are involved in this WP in order to make sure that all possible application areas are duly taken into account. Algorithm development (months 1 - 18) This WP is clearly of the highest importance because there is no known solution to date, to the problem of coding audiovisual information at about 10 Mbit/s with an overall quality better or at least equal to the one obtained today by traditional analogue techniques, although there is confidence both at ISO and at this project level that the goal is attainable in the given timescale, this explains the large amount of manpower assigned to this WP (about 40% of the total). System aspects (months 4 - 18) Once the audiovisual signal has been digitized there is by no means a straightforward way to exploit the flexibility used by the digital representation. The multiplexing of several audio and video streams in a single (or multiple) stream, the inclusion of protection mechanisms, access control, interactivity, etc. are some of the problems that need to be resolved. Demonstrators/VLSI (months 10 - 30) Once the coding algorithm has been defined by means of computer simulation, a check by hardware operating in Real- Time is mandatory. Because of the short time scale of the project, it is quite likely that some of the VLSI developed for use in the subsequent industrial phase will already be used for the purpose of demonstrators. All VLSI needed for the standard will be designed in this WP. Field trials (months 22 - 30) The demonstrators developed in the WP above will be used to check the applicability of the standard to the intended application areas. Standardization (months 1 - 30) The project will provide a co-ordination forum to enhance European presence in ISO, contributing to drafting the standard, etc.
Acronym: 
VADIS (IMP)
Project ID: 
625
Start date: 
19-04-1991
Project Duration: 
51months
Project costs: 
48 490 000.00€
Technological Area: 
Market Area: 

Raising the productivity and competitiveness of European businesses through technology. Boosting national economies on the international market, and strengthening the basis for sustainable prosperity and employment.