| CPC H04N 19/13 (2014.11) [H04N 19/103 (2014.11)] | 4 Claims |
|
1. A video decoding method comprising:
obtaining a 10-bit initial value of a context model for a syntax element;
determining, based on the 10-bit initial value, slope size information, slope sign information, offset size information, and offset sign information of the context model;
determining an initial probability of the context model, based on the slope size information, the slope sign information, the offset size information, the offset sign information, and a quantization parameter;
obtaining at least one bin of a symbol indicating the syntax element by performing context adaptive binary arithmetic coding (CABAC) decoding based on the initial probability of the context model; and
reconstructing a video based on the at least one bin,
wherein the slope size information is determined using three bits from the 10-bit initial value,
wherein the slope sign information is determined using one bit from the 10-bit initial value,
wherein the offset size information is determined using five bits from the 10-bit initial value, and
wherein the offset sign information is determined using one bit from the 10-bit initial value.
|