DIRECT MODE DERIVATION PROCESS FOR ERROR CONCEALMENT

摘要

Temporal concealment of missing/lost macro blocks relies on the direction mode derivation process typically standardized in video decoders. Upon detecting an error in the form of a picture (FIG. 1 ) a co-located macro block is found previously transmitted picture. The motion vector for that co-local macro block is determined (FIG. 2 ). The identified macro block is predicted by motion compensating data from a second previously transmitted picture in accordance with the motion vector determined for the co-located macro block (FIG. 3 ).