Patent ID: 11949898
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 19:
20. A non-transitory computer-readable medium storing computer instructions that are configured to, when executed by at least one processor, cause the at least one processor to:
determine a nominal angle of a current block of the picture for intra prediction, wherein the nominal angle of the current block is a base directional mode for intra prediction of the current block;
determine a nominal angle of at least one neighboring block of the current block for intra prediction, wherein the nominal angle of the at least one neighboring block is a base directional mode for intra prediction of the at least one neighboring block;
determine whether all allowed delta angles of the nominal angle of the current block are signalled or only a subset of the allowed delta angles of the nominal angle of the current block are signalled, based on a comparison between the nominal angle of the current block and the nominal angle of the at least one neighboring block; and
decode the bitstream based on whether the all allowed delta angles of the nominal angle of the current block are signalled are signalled or only the subset of the allowed delta angles of the nominal angle of the current block are signalled.