Patent ID: 11917194
Assignee: LG ELECTRONICS INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 8:
9. A method of transmitting a bitstream generated by an image encoding method, the image encoding method comprising:
determining whether wraparound motion compensation is applied for a current block within a current picture;
generating a prediction block of the current block by performing inter prediction based on the determination; and
encoding inter prediction information of the current block and wraparound information of the wraparound motion compensation,
wherein the wraparound information comprises a first flag and a second flag, the first flag specifying whether wraparound motion compensation is enabled for a current video sequence including the current picture, and the second flag specifying whether the wraparound motion compensation is enabled for the current picture,
wherein, when the current video sequence includes at least one subpicture being treated as a picture and having a width different from a value being derived based on information on a maximum width of a picture in the current video sequence, the encoded first flag is constrained to have a first value specifying that the wraparound motion compensation is disabled for the current video sequence, and
wherein the second flag has a first value specifying that the wraparound motion compensation is disabled for the current picture when the first flag has the first value.