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Repositorio institucional de la Universidad Tecnológica de Bolívar, aquí encontrarás todo lo relacionado con divulgación científica de la UTB.

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A Methodology for Driving Behavior Recognition in Simulated Scenarios Using Biosignals 

Dominguez-Jimenez J.A.; Campo-Landines K.C.; Contreras-Ortiz S.H. (Springer, 2019)
The recognition of aggressive driving patterns could aid to improve driving safety and potentially reduce traffic fatalities on the roads. Driving behavior is strongly shaped by emotions and can be divided into two main ...
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Speckle reduction in echocardiography by temporal compounding and anisotropic diffusion filtering 

Giraldo-Guzmán J.; Porto-Solano O.; Cadena-Bonfanti A.; Contreras-Ortiz S.H. (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 ...
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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 S.H. (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 ...
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Hexagonal filters for ultrasound images 

Contreras-Ortiz S.H.; Fox M.D. (2014)
Most of the devices for acquisition and display of medical images use rectangular lattices even though there are other sampling strategies that can be more efficient in terms of resolution. This paper proposes an approach ...
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Acquisition and Analysis of Cognitive Evoked Potentials using an Emotiv Headset for ADHD Evaluation in Children 

Mercado-Aguirre I.M.; Gutiérrez-Ruiz K.; Contreras-Ortiz S.H. (Institute of Electrical and Electronics Engineers Inc., 2019)
Attention-deficit/hyperactivity disorder (ADHD) is a neurological condition that affects the quality of life of the patients. It can be diagnosed using a combination of psychological tests. In addition to that, the brain ...
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A small vocabulary database of ultrasound image sequences of vocal tract dynamics 

Castillo M.; Rubio F.; Porras D.; Contreras-Ortiz S.H.; Sepúlveda A. (Institute of Electrical and Electronics Engineers Inc., 2019)
This paper presents a new database consisting of concurrent articulatory and acoustic speech data. The articulatory data correspond to ultrasound videos of the vocal tract dynamics, which allow the visualization of the ...
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Selection of a Stopping Criterion for Anisotropic Diffusion Filtering in Ultrasound Images 

Guillen J.E.I.; Contreras-Ortiz S.H. (Institute of Electrical and Electronics Engineers Inc., 2019)
Ultrasound imaging is a safe and cost-effective diagnostic tool, but the quality of the images is affected by speckle noise and artifacts. Anisotropic diffusion filters can be used to reduce noise and preserve the edges ...
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Texture Analysis of Ultrasound Images for Pneumonia Detection in Pediatric Patients 

Contreras-Ojeda S.L.; Sierra-Pardo C.; Dominguez-Jimenez J.A.; Lopez-Bueno J.; Contreras-Ortiz S.H. (Institute of Electrical and Electronics Engineers Inc., 2019)
Pneumonia is a condition that can be life-threatening and affects a high number of children around the world. Lung ultrasound can be used for the diagnosis of pneumonia, but requires high experience. This paper presents ...
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Analysis and Classification of Evoked Potentials in Response to Familiar and Unfamiliar Faces 

Sanchez-Hernandez S.A.; Contreras-Ortiz S.H. (Institute of Electrical and Electronics Engineers Inc., 2018)
Brain activity during perception and recognition of faces have been studied by researchers with the purpose to develop brain-computer interfaces and to study neurological disorders. In this paper, we analyzed evoked ...
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Design of an electronic system for monitoring muscle activity in weight-lifting 

Mercado-Medina E.L.; Chavarro-Hernandez Z.D.; Dominguez-Jimenez J.A.; Contreras-Ortiz S.H. (Institute of Electrical and Electronics Engineers Inc., 2014)
Electronic systems based on body area networks can be used to monitor sports performance. These systems use sensors to acquire signals from the athlete while performing the exercises, and a communication system to transmit ...
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Author
Contreras-Ortiz S.H. (21)
Dominguez-Jimenez J.A. (4)Mercado-Aguirre I.M. (4)Giraldo-Guzmán J. (3)Chavarro-Hernandez Z.D. (2)Kotas M. (2)Mercado-Medina E.L. (2)Patiño-Vanegas A. (2)Acevedo-Patino O. (1)Aguirre I.M.M. (1)... View MoreSubjectAnisotropic diffusion filtering (4)Anisotropic diffusion filters (4)Bioinformatics (4)Biomedical signal processing (4)Image processing (4)Optical anisotropy (4)Sports (4)Vision (4)Design and construction (3)Diffusion (3)... View MoreDate Issued2017 (8)2019 (6)2014 (3)2015 (2)2018 (2)Has File(s)No (21)

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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.