Invariant representation of facial expressions for blended expression recognition on unknown subjects ?
The organization of facial expressions is person-independent. One expression can be defined by its relative position to 8 other expressions. We synthesized the 8 expressions from plausible distortions. The representation is robust to the type of data (shape and/or texture information). As expression is accurately described in a 4 dimensional expression space.
invariant representation facial expression delaunay tessellation manifold of expressions piecewise affine warping transfer learning