Method, electronic device, and computer program product for generating three-dimensional image

An electronic device, comprising:

• at least one processor;
• and
• memory coupled to the at least one processor and having instructions stored therein, wherein the instructions, when executed by the at least one processor, cause the electronic device to perform actions, the actions comprising:
• receiving a first image presenting a target object at a first viewing angle, wherein the first image is a two-dimensional image;
• determining a transformed image of the first image at a target viewing angle, wherein the target viewing angle is the same as or different from the first viewing angle, wherein determining the transformed image of the first image at the target viewing angle comprises generating a plurality of transformed images based on the first image utilizing a transformation group comprising a dihedral group, the dihedral group including rotation transformations at a plurality of angles and reflection transformations at a plurality of angles, the transformed image of the first image being determined based on the plurality of transformed images generated utilizing the transformation group comprising the dihedral group;
• generating a first representation using a first feature extraction layer corresponding to the first viewing angle in an encoder based on the transformed image;
• and
• generating a second image based on the first representation, wherein the second image is a three-dimensional image and presents the target object at the target viewing angle.

A computer program product comprising a non-transitory computer-readable medium having computer-executable instructions stored therein, wherein the computer-executable instructions, when executed by a device, cause the device to perform actions, the actions comprising:

• receiving a first image presenting a target object at a first viewing angle, wherein the first image is a two-dimensional image;
• determining a transformed image of the first image at a target viewing angle, wherein the target viewing angle is the same as or different from the first viewing angle, wherein determining the transformed image of the first image at the target viewing angle comprises generating a plurality of transformed images based on the first image utilizing a transformation group comprising a dihedral group, the dihedral group including rotation transformations at a plurality of angles and reflection transformations at a plurality of angles, the transformed image of the first image being determined based on the plurality of transformed images generated utilizing the transformation group comprising the dihedral group;
• generating a first representation using a first feature extraction layer corresponding to the first viewing angle in an encoder based on the transformed image;
• and
• generating a second image based on the first representation, wherein the second image is a three-dimensional image and presents the target object at the target viewing angle.