Application of an optimized digital correlation method to planar deformation analysis
Image and Vision Computing
Robust incremental optical flow
Robust incremental optical flow
IEEE Transactions on Pattern Analysis and Machine Intelligence
Computation and analysis of image motion: a synopsis of current problems and methods
International Journal of Computer Vision
Optical Flow Constraints on Deformable Models with Applications to Face Tracking
International Journal of Computer Vision
Exploring weak scalability for FEM calculations on a GPU-enhanced cluster
Parallel Computing
International Journal of Parallel, Emergent and Distributed Systems
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Digital Image Correlation (DIC) is a powerful technique to provide full-field displacement measurements for mechanical tests of materials and structures. The displacement fields may be further processed as an entry for identification procedures giving access to parameters of constitutive laws. A new implementation of a Finite Element based Integrated Digital Image Correlation (I-DIC) method is presented, where the two stages (image correlation and mechanical identification) are coupled. This coupling allows one to minimize information losses, even in case of low signal-to-noise ratios. A case study for elastic properties of a composite material illustrates the approach, and highlights the accuracy of the results. Implementations on GPUs (using CUDA) leads to high speed performance while preserving the versatility of the methodology.