Jose Luis Paredes

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In this paper, we propose an automated method to classify normal/abnormal wall motion in Left Ventricle (LV) function in cardiac cine-Magnetic Resonance Imaging (MRI). Without the need of pre-processing and by exploiting all the images of a cardiac cycle, spatio-temporal profiles are extracted from a subset of diametrical lines crossing opposites segments(More)
In this paper we address the problem of fibrosis detection in patients with Hypertrophic cardiomyopathy (HCM) by using a sparse-based clustering approach and Dictionary learning. HCM, as a common cardiovascular disease, is characterized by the abnormal thickening, architectural disorganization and the presence of fibrosis in the left ventricular myocardium.(More)
In this paper, we propose a parametric approach for the assessment of wall motion in Left Ventricle (LV) function in cardiac cine-Magnetic Resonance Imaging (MRI). Time-signal intensity curves (TSICs) are identified in Spatio-temporal image profiles extracted from different anatomical segments in a cardiac MRI sequence. Different parameters are constructed(More)
In this paper, a weighted order statistic (WOS) filtering structure admitting real-valued weights is introduced. The proposed filtering approach can effectively address a number of signal and image processing applications that require robust bandpass or highpass operations where the underlying contamination follows a nonsymmetric heavy-tailed distribution.(More)
In this letter, we propose a robust algorithm for determining a unitary transform of a discrete-time signal, whose samples are sensed in impulsive noise environments. The proposed algorithm estimates the transformed signal coefficients by solving an &#x2113;<sub>1</sub>-regularized least absolute deviation (&#x2113;<sub>1</sub>-LAD) regression problem,(More)
This paper proposes two new recursive filtering structures based on the nonlinear myriad operator. First, we develop the general class of recursive weighted myriad (RWMy) filters as a robust filtering structure against impulsive noise that includes, as particular cases, a normalized version of the linear infinite impulse response (IIR) filter, the recursive(More)
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