Grid-based enrollment for face authentication

A user device comprising:

• a camera system configured to capture images of a face of a user for face authentication;
• a display device configured to display a for displaying the preview image including the user's face;
• and
• a processor and memory configured to implement an enrollment module configured to:
• responsive to initiation of an enrollment process, cause a two-dimensional (2D ) object to be overlaid over the preview image, the 2D object comprising a center region indicating an approximate orientation for the user to position their face relative to the camera system;
• responsive to a determination that the user's face is positioned within the center region, present a three-dimensional (3D ) tracking window as an overlay over the preview image, the 3D tracking window having a plurality of segments, the plurality of segments persisting to correspond to an approximate direction that the user's face is facing relative to the camera system;
• track the approximate direction that the user's face is facing;
• determine one or more segments of the plurality of segments that correspond to the approximate direction that the user's face is facing;
• highlight the one or more segments to provide visual feedback to the user;
• cause the camera system to capture one or more enrollment images corresponding to a pose of the user's face facing the approximate direction;
• generate one or more embeddings corresponding to the one or more enrollment images;
• and
• responsive to an indication that the one or more embeddings have been generated, provide an indication that the one or more segments are complete.

A computer-readable storage media comprising instructions that, when executed, configure at least one processor of a user device to:

• display a preview image, captured by a camera system of the user device, via a display device during an enrollment process for face authentication;
• cause a two-dimensional (2D ) object to be overlaid over the preview image, the 2D object comprising a center region indicating an approximate orientation for a user to position their face relative to the camera system;
• responsive to a determination that the user's face is positioned within the center region, present a three-dimensional (3D ) tracking window as an overlay over the preview image, the 3D tracking window having a plurality of segments, the plurality of segments persisting to correspond to an approximate direction that the user's face is facing relative to the camera system;
• track the approximate direction that the user's face is facing;
• identify one or more segments of the plurality of segments that correspond to the approximate direction that the user's face is facing;
• highlight the one or more segments to provide visual feedback to the user;
• cause the camera system to capture one or more enrollment images corresponding to a pose of the user's face facing the approximate direction;
• generate embeddings corresponding to the one or more enrollment images;
• and
• responsive to an indication that embeddings have been generated for the pose, provide an indication that the one or more segments are complete.