Patent ID: 6895051

Claim:
Decoder for decoding motion compensation encoded video data, comprising: means ( 34 ) for storing a video frame (R); means ( 35 ) for predicting a video data frame (P) based on said vodeo frame data frame (R) and on received motion vecotr data; means ( 32 ) for decoding received prediction error data and obtaining a prediction error frame (E*); and means ( 33 ) for calculating and outputting an updated video data frame (I*) based on said predicted video data frame (P) and said decoded prediction error frame (E*), and storing the updated video data frame (I*) in said storing means; said means ( 32 ) for decoding said received prediction error data comprising: determination means for performing at least one of the following operations: determination of areas of said prediction error frame (E) which are contained encoded in the received prediction error data and determination of at least one decoding scheme for each area contained encoded in the received prediction error data; and area decoding means ( 48 ) for decoding said received prediction error data to obtain the prediction error frame in accordance with the at least one determination operation performed by said determination means; wherein said determination means is adapted to analyse properties of said predicted video data frame (P), and to perform said at least one determination operation based on said analysis.