  The surface reconstruction problem from sets of planar parallel slices
representing cross sections through 3D objects is presented. The final result
of surface reconstruction is always based on the correct estimation of the
structure of the original object. This paper is a case study of the problem of
the structure determination. We present a new approach, which is based on
considering mutually orthogonal sets of slices. A new method for surface
reconstruction from orthogonal slices is described and the benefit of
orthogonal slices is discussed too.
