Prediction method for decoding and apparatus, and computer storage medium

A prediction device for decoding, comprising a memory and a processor, wherein

• the memory is configured to store a computer program capable of running in the processor;
• and
• the processor is configured to run the computer program to execute a prediction method for decoding, comprising:
• acquiring reference samples adjacent to at least one side of a decoding block;
• determining a reference point from the at least one side and determining reference sample positions to be selected corresponding to the at least one side according to a preset number of samples;
• selecting reference samples corresponding to the reference sample positions to be selected from the reference samples based on the reference sample positions to be selected;
• and
• performing prediction decoding on the decoding block based on the selected reference samples.

A computer storage medium, storing a prediction program for decoding, wherein the prediction program for decoding is executed by at least one processor to implement a prediction method for decoding, comprising:

• acquiring reference samples adjacent to at least one side of a decoding block;
• determining a reference point from the at least one side and determining reference sample positions to be selected corresponding to the at least one side according to a preset number of samples;
• selecting reference samples corresponding to the reference sample positions to be selected from the reference samples based on the reference sample positions to be selected;
• and
• performing prediction decoding on the decoding block based on the selected reference samples.