no code implementations • 31 May 2023 • Md Ashikuzzaman, Ali K. Z. Tehrani, Hassan Rivaz
This paper proposes exploiting the effective Poisson's ratio (EPR)-based mechanical correspondence between the axial and lateral strains along with the RF data fidelity and displacement continuity to improve the lateral displacement and strain estimation accuracies.
no code implementations • 16 Dec 2022 • Ali K. Z. Tehrani, Md Ashikuzzaman, Hassan Rivaz
Many modifications have been proposed to improve the displacement estimation of CNNs for USE in the axial direction.
no code implementations • 21 Sep 2022 • Md Ashikuzzaman, Brandon Helfield, Hassan Rivaz
Ultrasound localization microscopy (ULM) refers to a promising medical imaging modality that systematically leverages the advantages of contrast-enhanced ultrasound (CEUS) to surpass the diffraction barrier and delineate the microvascular map.
no code implementations • 30 Mar 2022 • Md Ashikuzzaman, Timothy J. Hall, Hassan Rivaz
The data term associated with the existing techniques takes only the amplitude similarity into account and hence is not sufficiently robust to the outlier samples present in the RF frames under consideration.
no code implementations • 12 Jan 2022 • Md Ashikuzzaman, Hassan Rivaz
ADMM empowers the proposed algorithm to use different techniques for optimizing different parts of the cost function and obtain high-contrast strain images with smooth background and sharp boundaries.
no code implementations • 6 Jan 2022 • Md Ashikuzzaman, Hassan Rivaz
To resolve these issues, herein, we propose a novel TDE algorithm where instead of L2-, L1-norms of both first- and second-order displacement derivatives are taken into account to devise the continuity functional.
no code implementations • 22 Dec 2020 • Md Ashikuzzaman, Noushin Jafarpisheh, Sunil Rottoo, Pierre Brisson, Hassan Rivaz
This paper introduces a fast and computationally efficient implementation of linear KF to improve the measurement accuracy of an optical tracking system with high temporal resolution.
Robotics