Face image processing method, face image processing model training method, apparatus, device, storage medium, and program product

A computer device, comprising:

• a memory, configured to store executable instructions;
• and
• a processor, configured to, by executing the executable instructions stored in the memory, perform a face image processing method, the method including:
• acquiring a face image of a source face and a face template image of a template face;
• performing three-dimensional face modeling on the face image and the face template image to obtain a three-dimensional face image feature of the face image and a three-dimensional face template image feature of the face template image;
• extracting a source face identity feature of the face image from the three-dimensional face image feature;
• extracting a template face image feature of the face template image from the three-dimensional face template image feature;
• fusing the source face identity feature and the template face image feature to obtain a three-dimensional fusion feature;
• performing face replacement feature extraction on the face image based on the face template image to obtain an initial face replacement feature;
• transforming the initial face replacement feature based on the three-dimensional fusion feature to obtain a target face replacement feature;
• and
• replacing the template face in the face template image with the source face based on the target face replacement feature to obtain a target face image after the replacement, wherein the target face image preserves identity and shape of the source face and pose and expression of the template face.

A non-transitory computer-readable storage medium, comprising computer executable instructions, and the computer executable instructions, when executed by a processor of an electronic device, causing the electronic device to implement a face image processing method, the method including:

• acquiring a face image of a source face and a face template image of a template face;
• performing three-dimensional face modeling on the face image and the face template image to obtain a three-dimensional face image feature of the face image and a three-dimensional face template image feature of the face template image;
• extracting a source face identity feature of the face image from the three-dimensional face image feature;
• extracting a template face image feature of the face template image from the three-dimensional face template image feature;
• fusing the source face identity feature and the template face image feature to obtain a three-dimensional fusion feature;
• performing face replacement feature extraction on the face image based on the face template image to obtain an initial face replacement feature;
• transforming the initial face replacement feature based on the three-dimensional fusion feature to obtain a target face replacement feature;
• and
• replacing the template face in the face template image with the source face based on the target face replacement feature to obtain a target face image after the replacement, wherein the target face image preserves identity and shape of the source face and pose and expression of the template face.