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Simple 3D object reconstruction using global optimization

Okrasa A.I., Gwizdałła T.M.

Prace Naukowe Politechniki Warszawskiej. Elektronika

2009

z. 169

137-144

In the paper we deal with the problem of three-dimensional shape reconstruction when its two-dimensional projections from selected directions are available. This situation corresponds e.g. to the trial of digitalizing the shape from photographs. We propose a methods for creating the mesh, projecting the shape keeping the information about light and perspective. On this basis we use SA technique to modify this shape in a controlled way in order to reproduce the initially assumed one best.

Procedure of distances evaluation for surface inspection

Bazylevych O., Ivakhiv O., Velgan R.

Acta Mechanica et Automatica

2008

Vol. 2, no. 3

11-13

In the context of developing automated optical inspection system, this work brings into focus the aspect of de-velopment of evaluation algorithms for thickness distribution extraction from the object model reconstructed after surface scanning. Within this work an algorithm for the evaluation of local differences between two triangle meshes is presented. The pair of triangular meshes is representing the front and backside of a scanned 3D-object. The resulting array of differences vector corresponds to the shortest local distances (i.e. local thickness) between sides of object.