The project was oriented toward the study and the development of new techniques for the coding of moving images (image sequences). In particular scalable video coding has been considered, moreover techniques based on the DVC (Distributed Video Coding) approach has been investigated. Scalable video coding aims to realize a coded stream from which different sub-streams characterized by different bit-streams cane be extracted with out deconding-and-recoding operations. It is extremely useful for audio-video distribution over heterogeneous networks. Instead, the DVC paradigm is based on the idea of moving computational complexity from the encoder device to the network or to the decoder engine. The project is closed; a patent relative to the use of the DVC technique has been filed.