| 摘要 |
1. Method for correcting picture errors when transmitting picture signals which are recognized by means of multi dimensional prediction and are DPCM-coded, in which the adulterated picture signal values (sr ) received are replaced by intermediately stored picture signal values (sst ), characterized in that, on the receive side, differences are formed in each case between current picture signal values (sr ) and the corresponding intermediately stored picture signal values (sst ) of a preceding television picture or television half-frame, in that a structural analysis of the differences is carried out in which, for the duration of several lines, it is checked whether an error trail corresponding to the prediction algorithm used is present, and in that, in the case of such an error trail being present, only the adulterated picture signal values are replaced. |
