Issue: Feasibility of detecting specific types of shape irregularities.
Comment: Algorithmically, computing any mathematically well-defined shape feature related to irregularity is neither difficult nor slow, provided the reference position is given (for relative measurement, see section 7.1), or not needed at all (absolute measurement). The problem is the algorithmic definition of the defect and finding the reference position. In general, larger defects are easier to measure. Dimensions and co-ordinate measurements are more precise than higher-order, differential features, such as curvature, tangential, bending, and angles.