Design of an Embedded Low Complexity Image Coder using CAL language

Khaled Jerbi (1) , Mickaël Raulet (2) , Olivier Déforges (3) , Mohamed Abid (1)

1 CEM Lab - ENIS - Département de Génie Électrique de Sfax [ENIS]
2 IETR - Institut d'Electronique et de Télécommunications de Rennes
3 IETR - Institut d'Électronique et des Technologies du numéRique

The increasing complexity of image codecs and the time to market requires a high level design. Caltrop Actor Language (CAL) is a domain-specific language that provides useful abstractions for dataflow programming with actor. It has been chosen by the ISO/IEC standardization organization in the new MPEG standard called Reconfigurable Video Coding. This framework is adopted to design a multitude of codecs by combining actors. We present in this paper the specification and synthesis of the image coder LAR (Locally adaptive resolution) using the CAL framework. An HDL description and generation tools are used. The results show that such a high level design is possible. The quality of the resulting decoder implementation turns out to be better than that of a VHDL reference design. In the following, the main parts of the LAR coder will be presented; we will introduce the basic notions of the CAL language and its infrastructure (edition, simulation and HDL synthesis tools) and the results will be discussed.

Domaines: Systèmes embarqués

Khaled Jerbi, Mickaël Raulet, Olivier Déforges, Mohamed Abid. Design of an Embedded Low Complexity Image Coder using CAL language. Conference on Design and Architectures for Signal and Image Processing (DASIP) 2009, Sep 2009, Sophia Antipolis, France. ⟨hal-00440484⟩