Publicación: Motion estimation of tagged cardiac magnetic resonance images using variational techniques
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Fecha
2010-09
Autores
Carranza Herrezuelo, N.
Bajo, A.
Sroubek, F.
Cristobal, G.
Santos, A.
Ledesma Carbayo, M. J.
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Derechos de acceso
Atribución-NoComercial-SinDerivadas 4.0 Internacional
info:eu-repo/semantics/openAccess
info:eu-repo/semantics/openAccess
Título de la revista
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Editor
Elsevier
Resumen
This work presents a new method for motion estimation of tagged cardiac magnetic resonance sequences based on variational techniques. The variational method has been improved by adding a new term in the optical flow equation that incorporates tracking points with high stability of phase. Results were obtained through simulated and real data, and were validated by manual tracking and with respect to a reference state-of-the-art method: harmonic phase imaging (HARP). The error, measured in pixels per frame, obtained with the proposed variational method is one order of magnitude smaller than the one achieved by the reference method, and it requires a lower computational cost.
Descripción
Categorías UNESCO
Palabras clave
Medical imaging processing, Motion estimation, Variational techniques, Tagged cardiac magnetic resonance images, Optical flow
Citación
Centro
Facultad de Ciencias
Departamento
Física Matemática y de Fluídos