Solemne acto de investidura de doctores: 31 enero 2009

[ES] Orden del acto: Apertura del acto por Don José Regidor García, Rector Magnífico de la Universidad de Las Palmas de Gran Canaria. Lectura de la Memoria de Investigación del curso 2007-2008 [a cargo de] Don Fernando Real Valcárcel, Vicerrector de Investigación, Desarrollo e Innovación. Investidura de los nuevos doctores. Conferencia [a cargo de el] Dr. D. Màrius Rubiralta Alcañiz, Secretario de Estado de Universidades del Ministerio de Ciencia e Innovación. Premios extraordinarios de doctorado. Premios a las mejores tesis doctorales patrocinados por la Caja de Canarias. Reconocimiento de Mecenas a la Fundación Caja Rural de Canarias. Reconocimiento a la Dra. Dña. Beatriz González López-Valcárcel por su trayectoria universitaria. Palabras del Rector. Durante la celebración del acto interviene la Coral Polifónica de la ULPGC

Variational second order flow estimation for PIV sequences

[EN] We present in this paper a variational approach to accurately estimate simultaneously the velocity field and its derivatives directly from PIV image sequences. Our method differs from other techniques that have been presented in the literature in the fact that the energy minimization used to estimate the particles motion depends on a second order Taylor development of the flow. In this way, we are not only able to compute the motion vector field, but we also obtain an accurate estimation of their derivatives. Hence, we avoid the use of numerical schemes to compute the derivatives from the estimated flow that usually yield to numerical amplification of the inherent uncertainty on the estimated flow. The performance of our approach is illustrated with the estimation of the motion vector field and the vorticity on both synthetic and real PIV datasets.