Patent ID: 11900544
Assignee: TENCENT AMERICA LLC
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A method of generating a low-poly mesh sequence for a three-dimensional (3D) model, the method comprising:
generating a visual hull based on intersections of first 3D primitives of a plurality of first silhouettes with a bounding box of the 3D model, the plurality of first silhouettes being generated by projecting the 3D model onto planes perpendicular to a number of selected view directions of the 3D model, each of the first 3D primitives being obtained by extruding a connected loop of a respective first silhouette along a view direction of the number of selected view directions that is associated with the respective first silhouette;
forming a carved mesh based on subtractions of second 3D primitives derived from positive parts of the 3D model to carve out redundant structures from the visual hull, the positive parts being obtained based on a plurality of fitting planes that slices the 3D model; and
generating the low-poly mesh sequence based on progressive simplifications of the carved mesh.