Determining 3D motion by shape-from-texture and shape reconstruction by correct corresponding of texels

摘要

This paper proposes a method for estimating three-dimensional (3D) motion parameters of a rigid object, of which surface is covered with a texture, by three images from a single camera. The method estimates unit normal vectors of texels and the 3D shape of the rigid object in each image by a Shape-from-Texture technique. The rotation parameters are obtained from average vectors of the normal vectors at the three images. The translation parameters are determined as a displacement between centroids of the successive shapes. Based on the 3D motion parameters, a correspondence between texels in successive images is established. The correspondence can give a more exact shape of the object by the stereo triangulation.