Generating image data

A method for generating image data, the method comprising:

• selecting enrollment images from among a plurality of enrollment images of a subject based on a target viewing angle, wherein each enrollment image of the plurality of enrollment images represents the subject as viewed from a different respective viewing angle;
• processing the plurality of enrollment images using machine-learning model to generate image features;
• pooling the image features based on a mask indicative of at least one characteristic to generate characteristic features;
• transforming the characteristic features based on the selected enrollment images to generate appearance features representing the at least one characteristic of the subject in the selected enrollment images;
• combining the appearance features based on a three-dimensional geometry of the subject to generate combined appearance features;
• and
• generating an image of the subject from the target viewing angle based on a texture image of the subject and the combined appearance features.

A non-transitory computer-readable storage medium having stored thereon instructions that, when executed by at least one processor, cause the at least one processor to:

• select enrollment images from among a plurality of enrollment images of a subject based on a target viewing angle, wherein each enrollment image of the plurality of enrollment images represents the subject as viewed from a different respective viewing angle;
• process the plurality of enrollment images using machine-learning model to generate image features;
• pool the image features based on a mask indicative of at least one characteristic to generate characteristic features;
• transform the characteristic features based on the selected enrollment images to generate appearance features representing the at least one characteristic of the subject in the selected enrollment images;
• combine the appearance features based on a three-dimensional geometry of the subject to generate combined appearance features;
• and
• generate an image of the subject from the target viewing angle based on a texture image of the subject and the combined appearance features.