DIFFERENTIAL CODING

摘要

A coding system (1) comprises an encoder device (2) and a decoder device (3) which both have a memory unit (23; 33) arranged in a loop for generating a prediction signal (y; g). The memory units apply lossy compression to reduce the memory requirements. In order to prevent drift due to dissimilar data reduction, the lossy compression in the encoder device (2) is substantially identical to the lossy compression in the decoder device (3). For example, both compressions may involve identical algorithms, compression factors and/or compression parameters.