Browsing Articulos by Author "Ramírez Moreno, David Fernando"
Now showing items 1-6 of 6
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Color coding in the cortex: a modified approach to bottom-upvisual attention
Ramírez Moreno, David Fernando; Ramírez Villegas, Juan Felipe (Universidad Autónoma de Occidente, 2012-09)Itti and Koch’s (Vision Research 40:1489–1506,2000) saliency-based visual attention model is a broadlyaccepted model that describes how attention processes aredeployed in the visual cortex in a pure bottom-up strategy.This ... -
Decision-making neural circuits mediating social behaviors: an attractor network model
Ramírez Moreno, David Fernando; Hurtado-López, Julián; Sejnowski, Terrence Joseph (Springer, 2017-06-29)We propose a mathematical model of a continuous attractor network that controls social behaviors. The model is examined with bifurcation analysis and computer simulations. The results show that the model exhibits stable ... -
Desarrollo de la atención visual en escenas naturales: un modelo bottom-up basado en mapa de prominencia con dinámica realista
Ramírez Moreno, David Fernando; Ramírez Villegas, Juan Felipe (Universidad Autónoma de Occidente, 2011)Este trabajo propone un modelo de atención visual para el análisis de escenas dinámicas que complementa el modelo de Itti & Koch (2000) [Itti L., & Koch C. (2000). A saliency-based search mechanism for overt and covert ... -
Dynamics of a neural circuit that mediates social and nonsocial behaviors
Hurtado López, Julián; Ramírez Moreno, David Fernando (World Scientific Publishing Co., 2019)We describe a neural network model of the mouse amygdala and hypothalamus that is able to support competitive interactions between social and grooming behaviors, as well as basic findings about how these behaviors are ... -
Una implementación computacional de un modelo de atención visual Bottom-up aplicado a escenas naturales
Ramírez Moreno, David Fernando; Ramírez Villegas, Juan (Universidad de los Andes, 2011-11-18)The bottom-up visual attention model proposed by Itti et al. 2000 [1], has been a popular model since it exhibits certain neurobiological evidence of primates’ vision. This work complements the computational model of this ... -
Una revisión de modelos de atención visual Bottom-up neurobiológicamente inspirados
Ramírez Moreno, David Fernando; Ramírez Villegas, Juan Felipe (Universidad Autónoma de Occidente, 2010)La atención visual es un proceso desarrollado sobre gran parte del área de procesamiento visual primario. El procesamiento cerebral provoca la focalización selectiva de los objetos del campo visual que compiten por ...
