Surface reconstruction from discrete data obtained by a 3D surface measurement system

Two aspects of a surface are of interest: surface form and surface irregularity.\nThe form is the geometry of an object.\nSuperimposed on the form and usually of much finer detail is surface irregularity.\nThe irregularity can be a combination of symmetrical and non-symmetrical deviations from nominal form and conclusions about the manufacturing process or the environmental and operating conditions under which a body has been used can be drawn from it.\nIn this paper the reconstruction of surfaces for computer aided surface assessment (CASA) is discussed