Image prediction method, apparatus, and system, device, and storage medium

A method, comprising:

• obtaining a split mode of a current node, wherein the current node is an image block in a coding tree unit in a current image;
• determining, based on the split mode of the current node and a size of the current node, whether the current node satisfies a preset condition;
• and
• when it is determined that the current node satisfies the preset condition, performing, by using a same prediction mode, prediction on all coding blocks belonging to the current node, to obtain predictors of all the coding blocks belonging to the current node, wherein the prediction mode is intra prediction or inter prediction.

An image prediction method, wherein the method comprises:

• determining, based on a size of a current node and a prediction mode of the current node, a split mode that is not allowed for the current node, wherein the current node is an image block in a coding tree unit in a current image;
• determining a block split policy of the current node based on the split mode that is not allowed for the current node;
• and
• obtaining, based on the block split policy of the current node, a coding block corresponding to the current node, and performing inter prediction on the corresponding coding block.