US 11,972,527 B2
Method and apparatus for reconstructing face mesh model, and storage medium
Gengdai Liu, Guangzhou (CN)
Assigned to BIGO TECHNOLOGY PTE. LTD., Singapore (SG)
Appl. No. 17/297,342
Filed by BIGO TECHNOLOGY PTE. LTD., Singapore (SG)
PCT Filed Nov. 13, 2019, PCT No. PCT/CN2019/117944
§ 371(c)(1), (2) Date May 26, 2021,
PCT Pub. No. WO2020/108304, PCT Pub. Date Jun. 4, 2020.
Claims priority of application No. 201811446646.7 (CN), filed on Nov. 29, 2018.
Prior Publication US 2022/0292776 A1, Sep. 15, 2022
Int. Cl. G06T 17/20 (2006.01)
CPC G06T 17/205 (2013.01) 16 Claims
OG exemplary drawing
 
1. A method for reconstructing a face mesh model, comprising:
acquiring face scanning data to be reconstructed and a three-dimensional (3D) face mesh template;
obtaining a target face mesh model by hierarchically extracting key feature points in the 3D face mesh template and by sequentially deforming the 3D face mesh template based on posture matching positions of the hierarchically extracted key feature points in the face scanning data, wherein the key feature points are local feature points in the 3D face mesh template and represent facial features and position details; and
obtaining a reconstructed face mesh model by acquiring global feature points in the target face mesh model and by deforming the target face mesh model based on the posture matching positions of the global feature points in the face scanning data, wherein the global feature points are all mesh vertices distributed in the target face mesh model,
wherein hierarchically extracting key feature points in the 3D face mesh template comprises:
continually extracting key feature points from the remaining feature points except previously extracted key feature points from a previous deformed 3D face mesh template.