DATA PROCESSING

摘要

Systems and methods for coding data, particularly image data such as video data, are described. In particular, a method of coding data having at least first, second and third portions is described, wherein the method includes forming an estimate of the accuracy of a prediction of the second portion based on the first portion and selectively predicting the third portion based at least on the second portion and the estimate of accuracy. Other related aspects of coding data by prediction, for example frames or fields of video data, are described, including methods of decoding data and methods of error correction and motion vector tracing.