https://journals.vilniustech.lt/index.php/GAC <p>Geodesy and Cartography publishes original research in the fields of geodesy, cartography, remote sensing, geoinformation systems, geoscience, land management and environmental sciences.&nbsp;<a href="https://journals.vilniustech.lt/index.php/GAC/about">More information ...</a></p> Vilnius Gediminas Technical University en-US Geodesy and Cartography 2029-6991 <p>Authors who publish with this journal agree to the following terms</p> <ul> <li class="show">that this article contains no violation of any existing copyright or other third party right or any material of a libelous, confidential, or otherwise unlawful nature, and that I will indemnify and keep indemnified the Editor and THE PUBLISHER against all claims and expenses (including legal costs and expenses) arising from any breach of this warranty and the other warranties on my behalf in this agreement;</li> <li class="show">that I have obtained permission for and acknowledged the source of any illustrations, diagrams or other material included in the article of which I am not the copyright owner.</li> <li class="show">on behalf of any co-authors, I agree to this work being published in Geodesy and Cartography as&nbsp;Open Access, and licenced under a Creative Commons Licence, 4.0 <a href="https://creativecommons.org/licenses/by/4.0/legalcode">https://creativecommons.org/licenses/by/4.0/legalcode</a>. This licence allows for the fullest distribution and re-use of the work for the benefit of scholarly information.</li> </ul> <p>For authors that are not copyright owners in the work (for example government employees), please <a href="mailto:%20journals@vilniustech.lt">contact VILNIUS TECH </a>to make alternative agreements.</p> https://journals.vilniustech.lt/index.php/GAC/article/view/20152 <p>The primary aim of this paper is to assess the effectiveness of a low-cost stereo (depth) camera as a non-destructive tool for the detection and measurement of cracks in concrete surfaces. The experiment was carried out on four concrete beams with cracks, created with different concrete mixes. The mixes of the four beams were made up of lightweight aggregates with 12% of normal weight aggregates. One beam was used as a reference without fibers, while 3D steel fiber reinforcement, 5D steel fibers reinforcement, and a hybrid fibers mix of 5D steel fiber and synthetic were used for the other three beams. The cracks in the beams were measured manually followed by taking their stereo images with a ZED camera. The ZED images were processed to produce 3D models of the concrete surfaces, which are useful for crack measurement in a three-dimensional framework. The project results are particularly significant in the measurement of all three dimensions (length, width and depth), with less than a 10% error between the actual and the experimental procedure. Relatively, multiple differential approaches gave a less accurate result of a 15% error mainly due to syntax errors. Results suggest that the ZED depth camera is an effective tool for robust detection and measurement of cracks in concrete surfaces.</p> Noura Y. Alghanim Tarig Ali Ahmed Elaksher Mohammad Alhamaydeh Copyright (c) 2025 The Author(s). Published by Vilnius Gediminas Technical University. http://creativecommons.org/licenses/by/4.0 2025-01-17 2025-01-17 51 1 1–10 1–10 10.3846/gac.2025.20152