Ultrasound high resolution imaging using a modified synthetic aperture focusing method

Over the last decades, large contributions have been made to Synthetic Aperture Focusing methods in multiple areas of research. Most of them try to balance the image quality at expense of increasing the computational complexity. In this paper, a modified method is presented, in which a midpoint is reached in between the accuracy of recreating focused aperture projections and the speed obtained by using the simplest Synthetic Aperture Focusing time-domain method. Details regarding the implementation of focusing on semi-automatic or automatic inspections systems are also described in the proposed methodology. Finally, in the evaluation results section, the suggested approach probes to be able to image small signatures up to approximately 0.035 mm.