TECHNIQUES FOR QP CODING FOR 360 IMAGE AND VIDEO CODING

摘要

A method for decoding a coded image or picture in a coded video sequence in a decoder, the image or picture representing a projection on a planar surface of a non-planar surface, the decoder employing a de-quantization step, may include obtaining at least one interim delta quantizer parameter (QP) value pertaining to at least one first block of a plurality of first blocks. The method may include decoding a QP value pertaining to a second block. The method may include combining a delta QP value and the QP value to generate a final QP value. The method may include inverse quantizing at least one value related to the second block using the final QP value.