284 articles – 2152 Notices  [english version]
Fiche détaillée Articles dans des revues avec comité de lecture
Annales des Télécommunications 46(1-2) (1991) 121-41; Jan.-Feb.
VLSI architectural assessment of standard image coding systems
G. Privat1, M. Renaudin1

Image coding systems currently undergoing standardisation within the ISO and CCITT are the final outcome of a process of incremental improvements to classical hybrid (transform-predictive) algorithms. The task of VLSI architecture synthesis for these complete systems is made somewhat awkward due to the unstructured, irregular and non-modular nature of these algorithms. An ad hoc methodology for pruning the architectural search space, directed by the goal of minimizing the overall internal memory, leads to a strongly control-flow solution, using a pipeline scheme that is more efficient than the original signal-flow graph. A generic image coding processor using a parallel programmable architecture is another solution. It may be inferred that second generation image coding techniques should be designed with massive fine-grain parallelism in view, if they are to take advantage of the full potential of dedicated VLSI implementations.
1 :  TIMA - Techniques of Informatics and Microelectronics for integrated systems Architecture
hybrid-algorithms – transform-predictive-algorithms – image-coding-systems – standardisation