METHOD FOR PREDICTING QUANTIZATION PARAMETER BASED ON INTRA PREDICTION MODE AND APPARATUS USING THE SAME

摘要

A method of predicting a quantization coefficient based on an intra prediction mode and an apparatus using the same are disclosed. The method includes the steps of: selecting a reference neighboring block to be referred to in a quantization coefficient prediction based on an intra prediction mode of a current block; determining a quantized coefficient prediction value of the current block based on a quantization coefficient of the reference neighboring block; And obtaining a quantized coefficient of the current block by adding the predicted coefficient value and the decoded quantization coefficient difference value of the current block, and dequantizing the quantized coefficient.