Dynamic Deformation Image Deblurring and Image Processing for Digital Imaging Correlation Measurement

In this research, we proposed a method for deblurring of images captured in the dynamic deformation of materials.By this method, deblurring was achieved based on a dynamic-based approach, which was used to estimate the point spread function (PSF) during the camera exposure window.The deconvolution process involving the iterative matrix calculations of pixels was then performed on the graphics processing unit (GPU) to reduce the time cost.The proposed method was evaluated using the Hopkinson bar loading system.In comparison with the blurry image, the proposed method successfully restored the image.It is also demonstrated from the image processing applications that the deblurring method can improve the accuracy and the stability of the digital imaging correlation measurement.