Resumo: Se estudiaron 13 ojos de 9 pacientes con diagnóstico de degeneración macular relacionada ... more Resumo: Se estudiaron 13 ojos de 9 pacientes con diagnóstico de degeneración macular relacionada con la edad (DMRE) y 11 ojos de 8 sujetos control de edades similares: a los que se les realizó exploración oftalmológica completa, como campimetría central, ...
Primary cutaneous mucormycosis is an unusual mycotic infection associated to immunosupression. We... more Primary cutaneous mucormycosis is an unusual mycotic infection associated to immunosupression. We present a 34 year-old woman with HIV infection with a necrotic primary mucormycosis of the skin associated to a venous catheter. She was treated with amphotericin B and surgical debridement.
It has been hypothesized that the hormonal status is involved in the distinct susceptibility betw... more It has been hypothesized that the hormonal status is involved in the distinct susceptibility between men and women towards the development of hepatobiliary disease because the liver is target organ for steroid hormones. In the development of the fibrogenic phenomenon present in the hepatic cirrhosis of diverse etiology, Ito cells, myofibroblasts as well as some cytokines like transforming growth factor-beta, interleukin-6 and tumor necrosis factor-alpha are involved. It is known that in the organism exist regulatory loops among cytokines, glucocorticoids and sex steroids; in the liver this interaction could affect the fibrogenic phenomenon through Ito cells differentiation. The knowledge of the precise role of glucocorticoids and sex steroids on the fibrogenic mechanisms should allow to support rationally the viability of hormone manipulation for the treatment of hepatic diseases of fibrotic nature.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2012
ABSTRACT We propose an automatic system for user identification and object recognition based on m... more ABSTRACT We propose an automatic system for user identification and object recognition based on multi-modal RGB-Depth data analysis. We model a RGBD environment learning a pixel-based background Gaussian distribution. Then, user and object candidate regions are detected and recognized online using robust statistical approaches over RGBD descriptions. Finally, the system saves the historic of user-object assignments, being specially useful for surveillance scenarios. The system has been evaluated on a novel data set containing different indoor/outdoor scenarios, objects, and users, showing accurate recognition and better performance than standard state-of-the-art approaches.
... and the Maximiliano Hernandez Martinez Brigade, and investigative departments such as ANSESAL... more ... and the Maximiliano Hernandez Martinez Brigade, and investigative departments such as ANSESAL (Salvadoran National Security Agency) and CAIN (Information Analysis ... congregate or walk together in groups of more than three people on the streets of San Salvador, to wear ...
The use of depth maps is of increasing interest after the advent of cheap multisensor devices bas... more The use of depth maps is of increasing interest after the advent of cheap multisensor devices based on structured light, such as Kinect. In this context, there is a strong need of powerful 3-D shape descriptors able to generate rich object representations. Although several 3-D descriptors have been already proposed in the literature, the research of discriminative and computationally efficient descriptors is still an open issue. In this paper, we propose a novel point cloud descriptor called spherical blurred shape model (SBSM) that successfully encodes the structure density and local variabilities of an object based on shape voxel distances and a neighborhood propagation strategy. The proposed SBSM is proven to be rotation and scale invariant, robust to noise and occlusions, highly discriminative for multiple categories of complex objects like the human hand, and computationally efficient since the SBSM complexity is linear to the number of object voxels. Experimental evaluation in...
Resumo: Se estudiaron 13 ojos de 9 pacientes con diagnóstico de degeneración macular relacionada ... more Resumo: Se estudiaron 13 ojos de 9 pacientes con diagnóstico de degeneración macular relacionada con la edad (DMRE) y 11 ojos de 8 sujetos control de edades similares: a los que se les realizó exploración oftalmológica completa, como campimetría central, ...
Primary cutaneous mucormycosis is an unusual mycotic infection associated to immunosupression. We... more Primary cutaneous mucormycosis is an unusual mycotic infection associated to immunosupression. We present a 34 year-old woman with HIV infection with a necrotic primary mucormycosis of the skin associated to a venous catheter. She was treated with amphotericin B and surgical debridement.
It has been hypothesized that the hormonal status is involved in the distinct susceptibility betw... more It has been hypothesized that the hormonal status is involved in the distinct susceptibility between men and women towards the development of hepatobiliary disease because the liver is target organ for steroid hormones. In the development of the fibrogenic phenomenon present in the hepatic cirrhosis of diverse etiology, Ito cells, myofibroblasts as well as some cytokines like transforming growth factor-beta, interleukin-6 and tumor necrosis factor-alpha are involved. It is known that in the organism exist regulatory loops among cytokines, glucocorticoids and sex steroids; in the liver this interaction could affect the fibrogenic phenomenon through Ito cells differentiation. The knowledge of the precise role of glucocorticoids and sex steroids on the fibrogenic mechanisms should allow to support rationally the viability of hormone manipulation for the treatment of hepatic diseases of fibrotic nature.
Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics), 2012
ABSTRACT We propose an automatic system for user identification and object recognition based on m... more ABSTRACT We propose an automatic system for user identification and object recognition based on multi-modal RGB-Depth data analysis. We model a RGBD environment learning a pixel-based background Gaussian distribution. Then, user and object candidate regions are detected and recognized online using robust statistical approaches over RGBD descriptions. Finally, the system saves the historic of user-object assignments, being specially useful for surveillance scenarios. The system has been evaluated on a novel data set containing different indoor/outdoor scenarios, objects, and users, showing accurate recognition and better performance than standard state-of-the-art approaches.
... and the Maximiliano Hernandez Martinez Brigade, and investigative departments such as ANSESAL... more ... and the Maximiliano Hernandez Martinez Brigade, and investigative departments such as ANSESAL (Salvadoran National Security Agency) and CAIN (Information Analysis ... congregate or walk together in groups of more than three people on the streets of San Salvador, to wear ...
The use of depth maps is of increasing interest after the advent of cheap multisensor devices bas... more The use of depth maps is of increasing interest after the advent of cheap multisensor devices based on structured light, such as Kinect. In this context, there is a strong need of powerful 3-D shape descriptors able to generate rich object representations. Although several 3-D descriptors have been already proposed in the literature, the research of discriminative and computationally efficient descriptors is still an open issue. In this paper, we propose a novel point cloud descriptor called spherical blurred shape model (SBSM) that successfully encodes the structure density and local variabilities of an object based on shape voxel distances and a neighborhood propagation strategy. The proposed SBSM is proven to be rotation and scale invariant, robust to noise and occlusions, highly discriminative for multiple categories of complex objects like the human hand, and computationally efficient since the SBSM complexity is linear to the number of object voxels. Experimental evaluation in...
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Papers by Miguel Angel Castillo Reyes