Video processing method and related device

A video processing apparatus, comprising:

• at least one memory configured to store computer program code;
• and
• at least one processor configured to read the program code and operate as instructed by the program code, the program code comprising:
• acquiring code configured to cause at least one of the at least one processor to acquire a video bitstream;
• first processing code configured to cause at least one of the at least one processor to perform compound prediction on a current block to be decoded in the video bitstream;
• first determining code configured to cause at least one of the at least one processor to determine, for the current block based on significance of one or more first reference predicted values derived from one or more reference blocks of the current block, a target weight group comprising one or more first weight values, the significance indicating a degree of impact of a corresponding reference predicted value on decoding performance for the current block;
• second processing code configured to cause at least one of the at least one processor to perform weighted prediction on the one or more first reference predicted values based on the one or more first weight values to obtain a predicted value of the current block;
• and
• reconstructing code configured to cause at least one of the at least one processor to reconstruct a decoded image corresponding to the current block based on the predicted value,
• wherein the one or more reference blocks are coding blocks referenced during decoding of the current block in the video bitstream, and
• wherein the one or more first reference predicted values are in a one-to-one correspondence with the one or more reference blocks.

A non-transitory computer-readable storage medium, storing computer code which, when executed by at least one processor, causes the at least one processor to at least:

• acquire a video bitstream;
• perform compound prediction on a current block to be decoded in the video bitstream;
• determine, for the current block based on significance of one or more first reference predicted values derived from one or more reference blocks of the current block, a target weight group comprising one or more first weight values, the significance indicating a degree of impact of a corresponding reference predicted value on decoding performance for the current block;
• perform weighted prediction on the one or more first reference predicted values based on the one or more first weight values to obtain a predicted value of the current block;
• and
• reconstruct a decoded image corresponding to the current block based on the predicted value,
• wherein the one or more reference blocks are coding blocks referenced during decoding of the current block in the video bitstream, and
• wherein the one or more first reference predicted values are in a one-to-one correspondence with the one or more reference blocks.