Small Object Surveying Techniques in the Engineering Stages of Design and 3D Reconstruction

Abstract

The paper is devoted to The decision of actual problem of development of methodology of photogrammetric survey of the small-sized objects with the purpose of receiving the correct data on them for creation of photorealistic 3D-models without use of the specialized equipment. Structure-from-motion methods applications of small-size objects are considered in the paper. Small-sized objects are justified by the narrow application of 3D models obtained by photogrammetry in marketing. A distinctive feature of the study is the use of images taken by mobile phone cameras as input data for the 3D-reconstruction. The main factors influencing the accuracy of object reconstruction are considered. An analysis of the determination of distortion in mobile phone camera images is carried out. The geometric parameters of different mobile phone cameras are considered in order to determine the deviations in reconstruction accuracy. General recommendations on creation of 3D-models for source data from mobile phone cameras are given. The work has been carried out using the central axis method. And methodical guidelines for obtaining input data for photogrammetry for different object sizes are also given. Quantitative indicators for image series are derived experimentally in order to reduce the time it takes to shoot