The traditional methodology used for displacement measurements in civil engineering requires a large volume of equipment and a very complex procedure. The goal of using digital image processing techniques is to calculate the displacement or the strain field without contact using a simple low cost camera. Digital Image Correlation is a method that examines consecutive images taken during the deformation period and detects the movements based on a mathematical correlation algorithm. Using image-processing techniques it is possible to measure the whole area of interest and not only a few points of the test materials as when using the conventional methodology. In this paper, block-matching algorithms are used in order to compare the results from DIC with data obtained using linear voltage displacement transducer sensors during the load test. Several laboratory tests were done in order to validate the adopted approach and measure the effectiveness of the solution.
|Title of host publication||Computational Vision and Medical Image Processing, Proceedings of VipIMAGE 2011 - 3rd ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing|
|Number of pages||5|
|Publication status||Published - 13 Feb 2012|
|Event||3rd ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing, VipIMAGE 2011 - Olhao, Algarve, Portugal|
Duration: 12 Oct 2011 → 14 Oct 2011
|Conference||3rd ECCOMAS Thematic Conference on Computational Vision and Medical Image Processing, VipIMAGE 2011|
|Period||12/10/11 → 14/10/11|