US 11,900,557 B2
Three-dimensional face model generation method and apparatus, device, and medium
Xiangkai Lin, Shenzhen (CN); and Linchao Bao, Shenzhen (CN)
Assigned to TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed by TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED, Shenzhen (CN)
Filed on Oct. 22, 2021, as Appl. No. 17/508,679.
Application 17/508,679 is a continuation of application No. PCT/CN2020/121168, filed on Oct. 15, 2020.
Claims priority of application No. 201911296472.5 (CN), filed on Dec. 16, 2019.
Prior Publication US 2022/0044491 A1, Feb. 10, 2022
Int. Cl. G06T 19/20 (2011.01); G06T 7/30 (2017.01); G06T 17/20 (2006.01)
CPC G06T 19/20 (2013.01) [G06T 7/30 (2017.01); G06T 17/20 (2013.01); G06T 2207/30201 (2013.01); G06T 2219/2004 (2013.01); G06T 2219/2021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A three-dimensional face model generation method, applied to a computing device, the method comprising:
obtaining a three-dimensional face mesh of a target object;
aligning the three-dimensional face mesh with a first three-dimensional face model of a standard object according to face keypoints;
performing local fitting on the three-dimensional face mesh and a local area of the first three-dimensional face model, to obtain a second three-dimensional face model after the local fitting, wherein the local area is an area whose fitting error rate is lower than a preset condition, the three-dimensional face mesh further includes a candidate area whose fitting error rate is higher than or equal to the preset condition, and the local fitting is not performed on the candidate area; and
performing global fitting on the three-dimensional face mesh and a global area of the second three-dimensional face model, to obtain a three-dimensional face model of the target object after the global fitting, wherein the global fitting is performed on the candidate area to obtain the 3D face model of the target object.