OATAO - Open Archive Toulouse Archive Ouverte Open Access Week

Robust Optical Flow Estimation in Cardiac Ultrasound Images Using a Sparse Representation

Ouzir, Nora and Basarab, Adrian and Lairez, Olivier and Tourneret, Jean-Yves Robust Optical Flow Estimation in Cardiac Ultrasound Images Using a Sparse Representation. (2019) IEEE Transactions on Medical Imaging, 38 (3). 741-752. ISSN 0278-0062

(Document in English)

PDF (Author's version) - Requires a PDF viewer such as GSview, Xpdf or Adobe Acrobat Reader

Official URL: https://doi.org/10.1109/TMI.2018.2870947


This paper introduces a robust 2-D cardiac motion estimation method. The problem is formulated as an energy minimization with an optical flow-based data fidelity term and two regularization terms imposing spa- tial smoothness and the sparsity of the motion field in an appropriate cardiac motion dictionary. Robustness to outliers, such as imaging artefacts and anatomical motion boundaries, is introduced using robust weighting functions for the data fidelity term as well as for the spatial and sparse regularizations. The motion fields and the weights are com- puted jointly using an iteratively re-weighted minimization strategy. The proposed robust approach is evaluated on syn- thetic data and realistic simulation sequences with available ground-truth by comparing the performance with state-of- the-art algorithms. Finally, the proposed method is validated using two sequences of in vivo images. The obtained results show the interest of the proposed approach for 2-D cardiac ultrasound imaging.

Item Type:Article
HAL Id:hal-02184824
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Université de Toulouse > Institut National Polytechnique de Toulouse - Toulouse INP (FRANCE)
French research institutions > Institut National de la Santé et de la Recherche Médicale - INSERM (FRANCE)
Université de Toulouse > Université Toulouse III - Paul Sabatier - UT3 (FRANCE)
Université de Toulouse > Université Toulouse - Jean Jaurès - UT2J (FRANCE)
Université de Toulouse > Université Toulouse 1 Capitole - UT1 (FRANCE)
Laboratory name:
Agence Nationale de la Recherche- ANR
Deposited On:16 Jul 2019 09:42

Repository Staff Only: item control page