Patent ID: 11917137
Assignee: TENCENT AMERICA LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H | IPC H

Claim 14:
15. A non-transitory computer readable medium storing a program causing a computer to execute a process, the process comprising:
receiving a video bitstream comprising a reference picture and a compressed data block to be reconstructed by intra prediction;
determining, from the video bitstream, a reference line index in response to determining a signaled intra prediction mode from the video bitstream;
determining, from the video bitstream, whether the reference line index of a reference line indicates a zero reference line;
in response to determining that the reference line index indicates the zero reference line, determining a MPM flag as signaled in the video bitstream;
in response to determining that the reference line index indicates the non-zero reference line, determining that the most probable mode flag is not signaled in the video bitstream and inferring the most probable mode;
based on either determining or inferring the most probable mode flag, determining one or more most probable modes for the non-zero reference line; and
reconstructing the compressed data block based on the one or more most probable modes.