Listar Investigaciones por autor "Lepore N."
Mostrando ítems 1-8 de 8
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Analysis of sEMG signals using discrete wavelet transform for muscle fatigue detection
Flórez-Prias L.A.; Contreras Ortiz, Sonia Helena (SPIE, 2017)The purpose of the present article is to characterize sEMG signals to determine muscular fatigue levels. To do this, the signal is decomposed using the discrete wavelet transform, which offers noise filtering features, ... -
Fetal ECG extraction using independent component analysis by Jade approach
Giraldo-Guzmán J.; Contreras Ortiz, Sonia Helena; Lasprilla G.I.B.; Kotas, Marian (SPIE, 2017)Fetal ECG monitoring is a useful method to assess the fetus health and detect abnormal conditions. In this paper we propose an approach to extract fetal ECG from abdomen and chest signals using independent component analysis ... -
Improving the blind restoration of retinal images by means of point-spread-function estimation assessment
Marrugo A.G.; Millán M.S.; Šorel M.; Kotera J.; Šroubek F. (SPIE, 2015)Retinal images often suffer from blurring which hinders disease diagnosis and progression assessment. The restoration of the images is carried out by means of blind deconvolution, but the success of the restoration depends ... -
Kinematic parameter estimation using close range photogrammetry for sport applications
Magre Colorado, Luz Alejandra; Martínez Santos J.C. (SPIE, 2015)In this article, we show the development of a low-cost hardware/software system based on close range photogrammetry to track the movement of a person performing weightlifting. The goal is to reduce the costs to the trainers ... -
On the illumination compensation of retinal images by means of the bidimensional empirical mode decomposition
Marrugo A.G.; Vargas R.; Chirino M.; Millán M.S. (SPIE, 2015)Retinal images are used for diagnostic purposes by ophthalmologists. However, despite controlled conditions in acquisition retinal images often suffer from non-uniform illumination which hinder their clinical use. In this ... -
Programmable diffractive optical elements for extending the depth of focus in ophthalmic optics
Romero L.A.; Millán M.S.; Jaroszewicz Z.; Kołodziejczyk A. (SPIE, 2015)The depth of focus (DOF) defines the axial range of high lateral resolution in the image space for object position. Optical devices with a traditional lens system typically have a limited DOF. However, there are applications ... -
Reduction of blooming artifacts in cardiac CT images by blind deconvolution and anisotropic diffusion filtering
Castillo-Amor A.M.; Navarro-Navia C.A.; Cadena-Bonfanti A.J.; Contreras Ortiz, Sonia Helena (SPIE, 2015)Even though CT is an imaging technique that offers high quality images, limitations on its spatial resolution cause blurring in small objects with high contrast. This phenomenon is known as blooming artifact and affects ... -
Speckle reduction in echocardiography by temporal compounding and anisotropic diffusion filtering
Giraldo-Guzmán J.; Porto-Solano O.; Cadena-Bonfanti A.J.; Contreras Ortiz, Sonia Helena (SPIE, 2015)Echocardiography is a medical imaging technique based on ultrasound signals that is used to evaluate heart anatomy and physiology. Echocardiographic images are affected by speckle, a type of multiplicative noise that ...
Universidad Tecnológica de Bolívar - 2017 Institución de Educación Superior sujeta a inspección y vigilancia por el Ministerio de Educación Nacional. Resolución No 961 del 26 de octubre de 1970 a través de la cual la Gobernación de Bolívar otorga la Personería Jurídica a la Universidad Tecnológica de Bolívar.