FILTERING METHOD FOR PERFORMING DEBLOCKING FILTERING ON A BOUNDARY BETWEEN AN INTRA PULSE CODE MODULATION BLOCK AND A NON-INTRA PULSE CODE MODULATION BLOCK WHICH ARE ADJACENT TO EACH OTHER IN AN IMAGE

摘要

A FILTERING METHOD ACCORDING TO THE PRESENT INVENTION IS FOR PERFORMING DEBLOCKING FILTERING ON THE BOUNDARY BETWEEN AN IPCM BLOCK AND A NON-IPCM BLOCK ADJACENT TO EACH OTHER IN AN IMAGE AND INCLUDING: DETERMINING A FIRST QUANTIZATION PARAMETER FOR THE NON-IPCM BLOCK (S401); DETERMINING A SECOND QUANTIZATION PARAMETER FOR THE IPCM BLOCK, USING THE FIRST QUANTIZATION PARAMETER (S402); DETERMINING A FILTER STRENGTH FOR THE BOUNDARY, USING THE FIRST QUANTIZATION PARAMETER AND THE SECOND QUANTIZATION PARAMETER (S403); AND PERFORMING THE DEBLOCKING FILTERING ON THE BOUNDARY USING THE DETERMINED FILTER STRENGTH (S404). FIG. 19.