Accuracy Analysis of Different Surface Reconstruction Modelling Methods for Heritage Objects Digitized Considering Photogrammetric Data / Skirtingų Reljefo Modeliavimo Metodų, Sudarytų Pagal Paveldo Objekto Fotogrametrinius Duomenis, Tikslumo Analizė / Анализ Точности Разных Методов Моделирования Поверхности, Составленных В Соответствии С Фотограмметрическими Данными Объекта Архитектурного Наследия

Abstract

The article explains the possibilities of reconstructing heritage objects. Measurements were made using photogrammetric data received from digital images taken by the Canon EOS ID Mark III digital camera calibrated in the Institute of Photogrammetry at the University of Bonn (Germany). The images were received applying the PhotoMod photogrammetric software produced in Russia. TIN (Triangulated Irregular Network) and an orthophoto map were made in the investigated objects. The modelling analysis of TIN data was made using ArcGIS software. The purpose ofthe article is to reconstruct the surface of heritage objects referring to photogrammetric data, to investigate accuracy dependence of heritage object reflection on the methods of preparing the initial data and to evaluate the influence of modelling methods on to the accuracy of reconstructing heritage objects when modelling photogrammetric data and selecting the most appropriate method of modelling parameters to restore the most accurate surface of the heritage object.