Patent ID: 11962791
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 0:
1. A video decoding method comprising:
obtaining, from a bitstream, least significant bit (LSB) information regarding picture order count (POC) information of a current long-term reference image of a current image;
determining most significant bit (MSB) information regarding the POC information of the current long-term reference image of the current image based on MSB information regarding POC information of a previous long-term reference image of the current image and a difference between the MSB information regarding the POC information of the current long-term reference image of the current image and the MSB information regarding the POC information of the previous long-term reference image of the current image;
determining the POC information of the current long-term reference image of the current image by using the LSB information and the MSB information regarding the POC information of the current long-term reference image of the current image; and
obtaining a predicted block of the current image by using the current long-term reference image of the current image corresponding to the POC information of the current long-term reference image of the current image;
obtaining residues by decoding the bitstream; and
reconstructing the current image by using the predicted block of the current image and the obtained residues,
wherein the MSB information regarding the POC information of the current long-term reference image of the current image is information regarding a quotient generated by dividing a value related to the POC information of the current long-term reference image of the current image by a maximum size of the LSB information, and the LSB information is information regarding a remainder value generated by dividing the POC information of the current long-term reference image of the current image by the maximum size of the LSB information, and
wherein the POC information of the current long-term reference image of the current image is used for an inter prediction on the current image by using the current long-term reference image of the current image.