Patent ID: 11969543
Assignee: PRESENT COMMUNICATIONS, INC.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  A  G  F | IPC A  H

Claim 13:
14. The method of claim 13:
during a second setup period at the second device:
accessing a second target image of the second user;
detecting a second target face in the second target image;
representing a second target constellation of facial landmarks, detected in the second target image, in a second target facial landmark container;
representing a second target set of facial muscle actions, detected in the second target image, in a second target facial expression container;
generating a second target set of face model coefficients;
transforming the second target facial landmark container, the second facial expression container, and the second target set of face model coefficients into a second target synthetic face image according to the synthetic face generator;
characterizing a second difference between the second target synthetic face image and the second target face detected in the second target image;
adjusting the second target set of face model coefficients to reduce the second difference; and
generating a second face model, associated with the second user, based on the second target set of face model coefficients;

at the first device, loading a local copy of the second face model prior to the video call;
at the second device during the video call:
accessing a second video feed captured by a second camera, integrated into the second device;
for a second frame, in the second video feed, captured at approximately the first time:
representing the second constellation of facial landmarks, detected in the second frame, in a second facial landmark container; and
representing a second set of action units, based on second facial muscle actions detected in the second frame, in a second facial expression container; and

transmitting the second facial landmark container and the second facial expression container to the first device; and

at the first device during the video call:
transforming the second facial landmark container, the second facial expression container, and the second face model into a second synthetic face image according to the synthetic face generator at the second device; and
displaying the second synthetic face image for the second user at approximately a second time following the first time.