Method, device, and computer program product for generating super-resolution image model

An electronic device, comprising:

• at least one processor;
• and
• a memory coupled to the at least one processor, the memory having instructions stored therein that, when executed by the at least one processor, cause the electronic device to perform actions comprising:
• acquiring a first image with a first resolution and a second image with a second resolution, the first image corresponding to the second image;
• generating a first super-resolution image with a first super resolution and a second super-resolution image with a second super resolution based on the first image according to an initial super-resolution image model;
• transforming the first super-resolution image into a first frequency-domain representation;
• transforming the second super-resolution image into a second frequency-domain representation;
• and
• generating a trained super-resolution image model based on the first frequency-domain representation, the second frequency-domain representation, and a reference frequency-domain representation of the second image.

A computer program product tangibly stored on a non-transitory computer-readable medium and comprising machine-executable instructions that, when executed by a machine, cause the machine to:

• acquire a first image with a first resolution and a second image with a second resolution, the first image and the second image having the same contents;
• generate a first super-resolution image with a first super resolution and a second super-resolution image with a second super resolution based on the first image according to an initial super-resolution image model;
• transform the first super-resolution image into a first frequency-domain representation;
• transform the second super-resolution image into a second frequency-domain representation;
• and
• train the initial super-resolution image model based on the first frequency-domain representation, the second frequency-domain representation, and a reference frequency-domain representation of the second image to generate a super-resolution image model.