Image coding/decoding method, device, and system

A computer program product comprising a non-transitory computer-readable medium storing computer executable instructions that when executed by a processor instruct the processor to:

• perform singular vector decomposition on a prediction block corresponding to a to-be-decoded image block, to obtain eigenvector matrices U and V of the prediction block;
• obtain a transform coefficient;
• and
• perform decoding processing on the transform coefficient according to the eigenvector matrices U and V of the prediction block, wherein the performing decoding processing comprises:
• performing an inverse transformation on the transform coefficient based on the eigenvector matrices U and V of the prediction block to obtain residual data;
• and
• obtaining an image block based on the residual data.

A device, comprising:

• a processor;
• and
• a memory storing computer executable instructions that when executed by a processor instruct the processor to:
• perform singular vector decomposition on a prediction block corresponding to a to-be-decoded image block, to obtain eigenvector matrices U and V of the prediction block;
• obtain a transform coefficient;
• and
• perform decoding processing on the transform coefficient according to the eigenvector matrices U and V of the prediction block, wherein the performing decoding processing comprises:
• performing an inverse transformation on the transform coefficient based on the eigenvector matrices U and V of the prediction block to obtain residual data;
• and
• obtaining an image block based on the residual data.