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Mostrando ítems 1-10 de 13
Artículo
Color-texture image segmentation based on multistep region growing
(Society of Photo-optical Instrumentation Engineers, 2006)
A new method for color image segmentation is proposed. It is based on a novel region-growing technique with a growth tolerance parameter that changes with step size, which depends on the variance of the actual grown ...
Artículo
Amplifier Nonlinear Modeling with RF Pulses
(IEEE, 2008-11)
This paper proposes a Volterra kernel identification procedure for wireless amplifiers with nonlinear memory. The technique is based on a reduced-order Volterra model for wideband amplifiers that is favorably compared with ...
Artículo
On Real-Time AER 2-D Convolutions Hardware for Neuromorphic Spike-Based Cortical Processing
(IEEE Computer Society, 2008)
In this paper, a chip that performs real-time image convolutions with programmable kernels of arbitrary shape is presented. The chip is a first experimental prototype of reduced size to validate the implemented circuits ...
Artículo
Segmentation-based lossless compression of burn wound images
(Society of Photo-optical Instrumentation Engineers, 2001)
Color images may be encoded by using a gray-scale image compression technique on each of the three color planes. Such an approach, however, does not take advantage of the correlation existing between the color planes. ...
Artículo
A Joint Optimization Criterion for Blind DS-CDMA Detection
(Hindawi Publishing Corporation, 2006)
This paper addresses the problem of the blind detection of a desired user in an asynchronous DS-CDMA communications system with multipath propagation channels. Starting from the inverse filter criterion introduced by ...
Artículo
Volterra Behavioral Model for Wideband RF Amplifiers
(IEEE, 2007-03)
This paper proposes a behavioral modeling approach for the description of nonlinearities in wideband wireless communication circuits with memory. The model is formally derived exploiting the dependence on frequency of the ...
Artículo
Self-assessed Contrast-Maximizing Adaptive Region Growing
(Springer, 2009)
In the context of an experimental virtual-reality surgical planning software platform, we propose a fully self-assessed adaptive region growing segmentation algorithm. Our method successfully delineates main tissues relevant ...
Artículo
Memoria del curso de formación de profesores noveles 2002/03
(Universidad de Sevilla, 2004)
Artículo
Circuit-level simulation of W-CDMA communication systems applied to the analysis of nonlinear distortion
(Wiley, 2004-11)
Different circuit-level approaches to analyze the effects of non linear distortion on coded division multiple access (CDMA) wireless communication systems are studied in order to predict spectral regro wthat the output of ...