Techniques are disclosed for capturing facial appearance properties 230.A facial capture system includes light source(s) that produce linearly, circular or elliptical polarized light, at least one camera that is cross-polarized with respect to the polarization of light produced by the light source(s), and at least one other camera that is not cross-polarized with respect to the polarization of the light produced by the light source(s). A three-dimensional (3D) geometry associated with the object is received and an appearance map or geometry map is generated (Fig 5., 502). Images captured by the cross-polarized camera(s) are used to determine facial appearance properties other than specular intensity, such as diffuse albedo, while images captured by the camera(s) that are not cross-polarized are used to determine facial appearance properties including specular intensity. A coarse-to-fine optimization procedure 234 is disclosed for determining appearance and detailed geometry maps based on images captured by the cross-polarized camera(s) and the camera(s) that are not cross-polarized (Fig 5., 506).
Techniques for facial appearance capture