期刊名称：International Journal of Environment and Geoinformatics
电子版ISSN：2148-9173
出版年度：2022
卷号：9
期号：3
页码：108-117
DOI：10.30897/ijegeo.971633
语种：English
出版社：IJEGEO
摘要：With the developing technology in recent years, there has been a significant increase in 3D spatial data needs and data production. 3D spatial data occupy an important place in almost every field. As a result, there is a need for 3D spatial data production and the produced data's reliability. Like all spatial measuring equipment, cameras, which are data production units used in photogrammetry, must also be calibrated to produce reliable data. Calibration for non-metric cameras is critical to ensure that the measurements are highly accurate and at standards acceptable to everyone. In this study, to determine the factors affecting the calibration, terrestrial photogrammetric images were taken with a Canon EOS 600D non-metric camera with different point diameters on the calibration paper. These images were evaluated in the camera calibration software, and the photogrammetric result accuracies were investigated. The effects of the point diameters on the camera calibration paper on the calibration results have been observed. A4, A3, A0 sizes were printed and calibrated for both calibration papers. As a result of the printouts, as can be predicted, the largest point sizes are A0, which has the largest paper size, and according to the results, it was seen that the highest accuracy was achieved in the A0 dimension. The Relationship between the accuracy obtained in the calibration process and the point diameters in the test area was examined in this study. When the 144-point test area presented by the software is printed in A0 size, the point diameters were measured 1.00 cm. In this study, calibration processes were performed as 1.00 cm, 1.20 cm, 1.40 cm, 1.60 cm, 1.80 cm, and 2.00 cm by enlarging the point diameters by 20%, and more accurate results were obtained more quickly than other paper sizes and calibration methods. As a result, since the calibration of the device to be used in the studies directly affects the model's accuracy to be obtained at the end of the study, it is necessary to take the maximum accuracy obtained in the calibration process. In this research, the calibration process's highest accuracy is aimed at and how the calibration process can be performed more effortlessly and more accurately by increasing the size of the point diameter on the test area.
关键词：Accuracy Assessment;Interior Orientation Parameters;Radial Distortion;2D Test Platform Camera Calibration
