Video coding using local illumination compensation

A video coding device comprising:

• a memory configured to store video data;
• and
• processing circuitry in communication with the memory, the processing circuitry being configured to:
• determine that a current block of the video data stored to the memory is to be coded according to a merge mode;
• determine a temporal candidate associated with a merge candidate list for the current block in accordance with the merge mode;
• determine a pool of spatial candidates associated with the merge candidate list, based on each spatial candidate of the pool having a same reference picture as the temporal candidate;
• and
• set a local illumination compensation (LIC) flag value for the temporal candidate based on respective LIC flag values of one or more spatial candidates of the pool.

An apparatus comprising:

• means for determining that a current block of video data is to be coded according to a merge mode;
• means for determining a temporal candidate associated with a merge candidate list for the current block in accordance with the merge mode;
• means for determining a pool of spatial candidates associated with the merge candidate list, based on each spatial candidate of the pool having a same reference picture as the temporal candidate;
• and
• means for setting a local illumination compensation (LIC) flag value for the temporal candidate based on respective LIC flag values of one or more spatial candidates of the pool.

A non-transitory computer-readable storage medium encoded with instructions that, when executed, cause one or more processors of a video coding device to:

• determine that a current block of video data is to be coded according to a merge mode;
• determine a temporal candidate associated with a merge candidate list for the current block in accordance with the merge mode;
• determine a pool of spatial candidates associated with the merge candidate list, based on each spatial candidate of the pool having a same reference picture as the temporal candidate;
• and set a local illumination compensation (LIC) flag value for the temporal candidate based on respective LIC flag values of one or more spatial candidates of the pool.