A NOVEL CHAOTIC CODING SYSTEM FOR LOSSY IMAGE COMPRESSION

Chaos, lossy compression, control system, coding pipeline. In this paper a novel image compression pipeline, by making use of a controlled chaotic system, is proposed. Chaos is a particular dynamic generated by nonlinear systems. Under certain conditions it is possible to properly manage the chaotic dynamics obtaining very feasible and powerful working instruments. In the proposed compression pipeline a linear feedback control strategy has been used to stabilize chaotic dynamic used to track the 1D signal generated by the input image. The pipeline is closed by an entropy encoder. Preliminary experiments and comparison with respect to standard JPEG engine confirm the effectiveness of the proposed chaotic coding system both for natural and graphic images. Also the overall performances in terms of rate-distortion capabilities are promising.