Un algoritmo per il riconoscimento automatico dei bordi da scansioni laser terrestri

The paper proposes an original algorithm for the automatic detection of the edges within a cloud of terrestrial laser points: it is based on the analysis of the numerical values of the local mean curvature, this last estimated by applying a non parametric interpolation model. The discontinuity contours are thus characterized by points having mean curvature greater than a threshold, so automatically detected by means of a procedure implementing such a criterion. Several numerical experiments on simulated and real noisy laser data have shown the proper applicability of the proposed method for the edge detection: if compared with the results obtained by applying TIN decimation software, those accomplished by the proposed algorithm seem very promising.