US 12,437,473 B2
Method and apparatus for storing visibility data of three-dimensional model, device, and storage medium
Fei Xia, Shenzhen (CN)
Assigned to Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed by Tencent Technology (Shenzhen) Company Limited, Shenzhen (CN)
Filed on Jun. 8, 2023, as Appl. No. 18/207,577.
Application 18/207,577 is a continuation of application No. PCT/CN2022/127985, filed on Oct. 27, 2022.
Claims priority of application No. 202111374336.0 (CN), filed on Nov. 19, 2021; and application No. 202111624049.0 (CN), filed on Dec. 28, 2021.
Prior Publication US 2023/0326129 A1, Oct. 12, 2023
Int. Cl. G06T 17/00 (2006.01); G06V 10/60 (2022.01)
CPC G06T 17/00 (2013.01) [G06V 10/60 (2022.01)] 18 Claims
OG exemplary drawing
 
1. A method for processing visibility data of a three-dimensional model, performed by a computer device, comprising:
obtaining original values of visibility data of a plurality of sampling points of the three-dimensional model, wherein the three-dimensional model is formed by a plurality of surface slices, each surface slice having a polygon formed by a set of vertexes with sampling points on the surface slice surrounded by the set of vertexes;
determining visibility data of a plurality of vertexes of the three-dimensional model based on (i) a first error function measuring differences between recovery values of the visibility data of the sampling points on a surface slice of the three-dimensional model from interpolation of the visibility data of the vertexes of the surface slice of the three-dimensional model and the original values of the visibility data of the sampling points on the surface slice of the three-dimensional model and (ii) change rates of the recovery values of the visibility data of the sampling points on the surface slice of the three-dimensional model; and
storing the visibility data of each vertex of the three-dimensional model.