Patent ID: 11863753
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 2:
3. A video decoding apparatus comprising:
a memory storing instructions; and
at least one processor configured to execute the instructions to:
obtain, from a bitstream, a 10-bit initial value of a context model for a syntax element;
determine, based on the 10-bit initial value, slope size information, slope sign information, offset size information, and offset sign information of the context model;
determine 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;
obtain 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
reconstruct 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.