Reconstruction of the Sculpture Surface in the Process of Optical 3D Scanning

Abstract

Currently, 3D scanning technology is used for high-precision measurements and fixing the geometric shape of various objects. However, when creating a computer 3D-model as a result of processing the array of data obtained from the scanning process, may contain errors. Errors may related to the features of the studied object (material, weight, size, location), functional properties of the software used or they may be the low qualification of the software engineer involved in processing 3D scan data. The task of this work was a finding the technical solutions, which allows one to reconstruct the objects surface, recorded using 3D scanning in the process of creating their computer 3D models. We proposed to use the inverse distance method, which is used in biometry to improve the quality of reconstruction of the 3D surface of a human face. Experiments have shown that the result of the reconstruction makes it possible to increase the accuracy of creating 3D models by recovering gaps in the surface of an object that were made during the 3D scanning process. The proposed approach allows one to construct a 3D surface without solving the triangulation problem, which leads to a reduction in computational costs.

Quality Assessment of a Manufactured Bell Using a 3D Scanning Process

“…The obtained 3D model can be used to reproduce the technical documentation, perform a strength analysis or determine the quality of the manufactured product without destructive methods. The development of this technology has made it popular in areas such as automotive industry [8][9][10], medicine [11], archaeology [12], arts [13], cultural heritage reconstruction [14], casting [15] and forging [16]. The paper [8] presents studies concerning the application of the 3D scanning technology to sheet-metal parts and sets of automotive dies.…”

“…In [12], a positioning algorithm was also developed that allows one to determine the axes of symmetry of the analyzed ceramic objects. The reconstruction process of the sculpture by means of 3D scanning was presented in [13], where the reverse distance method was used to repair the point cloud and restore the surface. The usage of laser scanning for the reconstruction of an ancient musical instrument is presented in [14].…”