In the conventional transformation coding of pictures the value ranges of the coefficients then produced are extended during the performance of the individual arithmetical steps. As a result thereof these coefficients have a great redundancy. According to the invention, the arithmetical steps which are...http://www.google.co.uk/patents/US4463377?utm_source=gb-gplus-sharePatent US4463377 - Arrangement for storing or transmitting and for recovering picture signals
