1. A computer-implemented method for determining a three-dimensional (3D) surface reconstruction of an object, the method comprising: a) generating a first 3D surface reconstruction of the object from a plurality of two-dimensional (2D) images of the object which have been obtained from different perspectives; b) specifying a region of interest of the object; c) determining at least one viewing direction for viewing the region of interest of the object of b); d) obtaining at least one 2D image of the object corresponding to the at least one viewing direction of c); e) generating a second 3D surface reconstruction of the object from all or part of the 2D images used to generate the first 3D surface reconstruction of the object in a) and the at least one 2D image of the object obtained in d).