b88d7028-a322-4098-87e0-ee8ebaff09d620210312084354533wseamdt@crossref.orgMDT DepositWSEAS TRANSACTIONS ON COMPUTERS1109-275010.37394/23205http://wseas.org/wseas/cms.action?id=40262720202720201910.37394/23205.2020.19http://wseas.org/wseas/cms.action?id=23186Reconstruction of the Sculpture Surface in the Process of Optical 3D ScanningN.ShchegolevaSt.Petersburg State University, Saint Petersburg 199034, RUSSIA, also with Plekhanov Russian University of Economics Stremyanny lane, 36, Moscow, 117997, RUSSIAV.ParfenovSt.Petersburg Electrotechnical University, Saint Petersburg 197376, RUSSIAS.SmolinaSt.Petersburg Electrotechnical University, Saint Petersburg 197376, RUSSIACurrently, 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.228202022820202630https://www.wseas.org/multimedia/journals/computers/2020/a085105-064.pdf10.37394/23205.2020.19.4http://www.wseas.org/multimedia/journals/computers/2020/a085105-064.pdf10.1109/iscas.1998.694539J.-A. Beraldin, F. Blais, L. Cournoyer et al. Portable digital 3-D imaging system for remote sites // Proceedings of IEEE Intern. Symp. on Circuits and Systems, 1998. Vol. 5. P. V-488–V-493. Fontana R., Gambino M. C., Greco M. et al. High-resolution 3D digital models of artworks // Proceedings of SPIE, 2003. Vol. 5146. P. 34–43. V. A. Parfenov, O. V. Frank-Kamenetskaya, I. A. Leonova, S. L. Moshkina. Use of laser 3D scanning for monitoring of sculptural monuments // Izvesitya Sankt- Petersburgskogo gosudarstvennogo elektotekhnicheskogo universiteta. 2018. No 3. p. 73-79. 10.1117/12.2526163Vadim Parfenov "Use of 3D laser scanning for documentation, digital reconstruction and physical replication of sculptural monuments (Conference Presentation)", Proc. SPIE 11058, Optics for Arts, Architecture, and Archaeology VII, 110580K (22 July 2019); https://doi.org/10.1117/12.2526163 Pérez E. et al. A comparison of hole-filling methods in 3D //International Journal of Applied Mathematics and Computer Science. – 2016. – Т. 26. – No. 4. – С. 885-903. Shchegoleva N. L. Facial surface reconstruction in 3D format // JTACS Journal of Theoretical and Applied Computer Science, 2012. – Vol.6, No 4. – P. 37-50.