Martín Gallegos-Duarte

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BACKGROUND Neurometry measures bioelectrical cerebral activity qualitatively and quantitatively and is obtained from digital cerebral mapping. This methodology allows determination of the efficiency of short and long association tracts contained in the white matter through coherence analysis. Our objective was to demonstrate neurometric alterations in the(More)
A composition of the viscous opening and the lower leveling is introduced to extract brain in magnetic resonance imaging T1. The innovative transformation disconnects chained components and has better control on the reconstruction process of the marker inside of the original image. However, the sequential operator requires setting several parameters, making(More)
OBJECTIVES To determine the behavior of the visual cerebral cortex during the photo stimulation in the dissociated strabismus. MATERIAL AND METHODS We elaborated a digital cerebral mapping using the international 10-20 system with 21 electrodes and an option of a register of 32 channels with established parameters in every period (printed and with pulse(More)
In this article, several advanced connected transformations from mathematical morphology for computational neuroanatomy applications are developed. In particular, brain is separated from the skull in MRI T1 using morphological connected openings. The use of connected transformations allow the preservation of regions, without introduce new information. As a(More)
BACKGROUND We undertook this study to determine the cortical alterations related to the origin of dissociated deviation. METHODS This was a prospective, descriptive and observational study that included 10 children with diagnosis of dissociated horizontal deviation, without previous evidence of neuronal damage. Manual, cerebral and ocular dominance were(More)
Once the formation of cerebral and ocular structures has been completed, the simple light stimulus is enough to activate the necessary neural circuits that integrate the visual tract. It has been estimated that 50% of the cerebral cortex participates in the integration of the hu‐ man binocular visual system. This system is practically distributed throughout(More)
In this paper a methodology to restore gray scale images with pixels polluted by random impulsive noise is presented. Noise is discovered using a criterion based on the white top-hat by reconstruction. Pixels detected as corrupted are restored using an iterative morphological algorithm built with extensive and antiextensive morphological transformations.(More)
It is my pleasure to present to the readers of the journal “Computación y Sistemas” the new volume of the journal. There are several interesting papers that may draw your attention. A new super image reconstruction algorithm is proposed in the paper “A Super-Resolution Image Reconstruction using Natural Neighbor Interpolation” by Christian J.(More)
Congenital strabismus is an essentially neurological condition with ophthalmologic, psychological, and social repercussions. In spite of the former its true dimension has not been assayed. This disease affects 3% of the population worldwide and represents the most relevant binocular perturbation in humans. Notwithstanding its importance, the origin of(More)