Fig. 5

Skinned Multi-Person Linear Model (SMPL) [79] body model. This model does not have an explicit skeleton. Instead, the surface of a person is represented by a mesh of triangles. A set of parameters (learnt through regression) allows the shape of the model to be changed from a neutral mean (left) to a fatter (middle) or thinner, taller, or other body shape. Once shaped, the centres of joints are inferred from the neutrally posed mesh, and then the mesh can be rotated around these joints to produce a posed body (right)