Method and apparatus for encoding and decoding video signal

The present invention provides a method for encoding a video signal comprising the steps of: performing block division with respect to a target unit of the video signal, wherein the block division isperformed on the basis of square division and/or non-square division; determining the optimal block partition on the basis of a rate distortion cost, when the target unit is divided into a plurality of non-square blocks; and performing CNT prediction coding on the non-square blocks resulting from the optimal block partition, wherein the CNT prediction coding involves performing prediction using values of all pixels which have been previously decoded. 本发明提供了种编码视频信号的方法，包括以下步骤：对视频信号的目标单元执行块划分，其中，块划分分割是基于正方形划分和/或非正方形划分执行的；当目标单元被划分成多个非正方形块时，基于比率失真成本确定最佳块分割；以及对由最佳块分割产生的非正方形块执行CNT预测编译，其中，CNT预测编译涉及使用所有先前解码的像素值执行预测。