Photogrammetric data of circular target test fields for eccentricity analysis

Liebold, Frank

Photogrammetric data of circular target test fields for eccentricity analysis

Type of the data datacite.resourceTypeGeneral	Image
Type of the data datacite.resourceTypeGeneral	Text
Total size of the dataset datacite.size	379367400
Author dc.contributor.author	Liebold, Frank
Upload date dc.date.accessioned	2026-01-30T14:09:38Z
Publication date dc.date.available	2026-01-30T14:09:38Z
Publication date dc.date.issued	2026-01-30
Abstract of the dataset dc.description.abstract	This data publication contains photogrammetric data of test fields of circles. Please download the zip files and extract them. There are three experiments: Experiment 1 (in "exp1_planar_test_field.zip"): A planar test field with 20 concentric circle targets. The 12 larger circles have inner radii of 15mm, outer radii of 30mm and a grid size of 67mm. There are 8 further smaller circles (inner radius: 3mm, outer radius: 6mm). A bundle of 12 images (see "image_orientations.png" in "images_planar_test_field.zip") was recorded. Experiment 2 (in "exp2_nonplanar_test_field.zip"): A nonplanar test field with 60 concentric circle targets with inner radii of 13mm and outer radii of 26mm. A bundle of 12 images (see "image_orientations.png" in "images_nonplanar_test_field.zip") was recorded. Experiment 3 (in "exp3_scale_bar_comparison.zip"): There three subexperiments with different circular target radii (5mm, 7.5mm, 10mm). Additionally, there is a scale bar with 2 targets with a radius of 5mm. For each subexperiment, a bundle of 12 images (see "image_orientations.png" in "test_field_radius_mm/images_scale_bar_comparison_radius_mm.zip") was recorded. The planar test fields have 127 circular targets. In addition to the 127 targets, there are the two scale bar radii. All folders contain: 1) the initial values of the image orientaions with the projection center coordinates and the rotation angles. rotMat = [[cosPhicosKappa, -cosPhisinKappa, sinPhi],\ [cosOmegasinKappa + sinOmegasinPhiCosKappa,\ cosOmegacosKappa - sinOmegasinPhiSinKappa,\ -sinOmegacosPhi],\ [sinOmegasinKappa - cosOmegasinPhiCosKappa,\ sinOmegacosKappa + cosOmegasinPhiSinKappa,\ cosOmegacosPhi]]) 2) the image measurements in pixels: ellipse center x,y (pixel coordinate system in the left upper pixel, x to the right, y points down), semi-axes a and b. Star operator was used (edge detection with Laplacian of Gauss filter). 3) contour point coordinates of the star operator measurements. 4) initial circle parameters 5) for experiment 2 and 3: there is a additional pin file that contains the assignment of the image numbers and image names.
Public reference to this page dc.identifier.uri	https://opara.zih.tu-dresden.de/handle/123456789/2019
Public reference to this page dc.identifier.uri	https://doi.org/10.25532/OPARA-1087
Publisher dc.publisher	Technische Universität Dresden
Licence dc.rights	Attribution 4.0 International	en
URI of the licence text dc.rights.uri	http://creativecommons.org/licenses/by/4.0/
Specification of the discipline(s) dc.subject.classification	4
Title of the dataset dc.title	Photogrammetric data of circular target test fields for eccentricity analysis
Funding Acknowledgement opara.project.fundingAcknowledgement	The work has been funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation–SFB/TRR 280; project ID: 417002380).