Patent ID: 8649435
Filing Date: 2014-02-11
Classification: H04N

Abstract:
1. A method of decoding a video image, the method comprising: determining coding units of a hierarchical structure by using information about whether to divide a coding unit parsed from a received bitstream; obtaining a first predicted value of a current coding unit, among the determined coding units, by using neighboring pixels of the current coding unit; obtaining a second predicted value of each of pixels of the current coding unit located on a top border and a left border of the current coding unit by using at least one neighboring pixel adjacent to each of the pixels located on the top border and the left border of the current coding unit; and obtaining a final predicted value of the current coding unit by using the obtained first predicted value and the obtained second predicted value, wherein the final predicted value of the current coding unit is obtained by using a weighted average of the obtained first predicted value and the obtained second predicted value with weights depending on size of the coding unit to be predicted.