Method and apparatus with blind face restoration

An apparatus, the apparatus comprising:

• a pyramid feature obtaining processing element configured to obtain a pyramid feature of an input face image;
• a first style feature obtaining processing element configured to generate a first initial style feature corresponding to a highest level feature based on the highest level feature of the pyramid feature, and a latent code and noise of the input face image, and generate a first style feature corresponding to each level feature based on an integrated feature corresponding to each level feature of the pyramid feature, the noise, and the latent code;
• and
• a face image obtaining processing element configured to generate a high-quality face image of the input face image based on the first initial style feature and the first style feature corresponding to each level feature of the pyramid feature,
• wherein the integrated feature corresponding to each level feature is obtained based on each level feature, the first style feature corresponding to a higher level feature of each level feature, the latent code, and the noise, and
• wherein an integrated feature corresponding to the highest level feature of the pyramid feature is generated based on the highest level feature, the latent code, the noise, and the first initial style feature.

An electronic device, comprising:

• one or more processors configured to execute instructions;
• and
• a memory storing the instructions, wherein execution of the instructions configures the processors to:
• obtain a pyramid feature of an input face image;
• generate a first initial style feature corresponding to a highest level feature based on the highest level feature of the pyramid feature, and a latent code and noise of the input face image;
• generate a first style feature corresponding to each level feature based on an integrated feature corresponding to each level feature of the pyramid feature, the noise, and the latent code;
• and
• generate a high-quality face image of the input face image based on the first initial style feature and the first style feature corresponding to each level feature of the pyramid feature,
• wherein the integrated feature corresponding to each level feature is generated based on each level feature, the first style feature corresponding to a higher level feature of each level feature, the latent code, and the noise, and
• wherein an integrated feature corresponding to the highest level feature of the pyramid feature is generated based on the highest level feature, the latent code, the noise, and the first initial style feature.