Patent ID: 11869274
Assignee: GOOGLE LLC
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G

Claim 11:
12. The computer-readable medium of claim 10, wherein the first face resampling keyframe includes a first head transform matrix and first face landmark vertices and further comprising determining a first interpolated face frame by:
using the first head transform matrix to extract a translation vector, a rotation quaternion, and a scale vector;
linearly interpolating the translation vector;
using a linear interpolation to interpolate the rotation quaternion to generate an interpolated rotation quaternion;
linearly interpolating the scale vector to generate an interpolated scale vector;
composing an interpolated translation-rotation-scale matrix based on the interpolated translation vector, the interpolated rotation quaternion, and the interpolated scale vector; and
calculating an interpolated position for the interpolated first face using the interpolated translation-rotation-scale matrix.