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In this paper, we present a novel system for extracting road map from pyramid data sets generated from high resolution images. With the model of two Gaussian functions, we design a centre-surround cell operator and subsequent half-wave rectification may help us to find all the pixels on road surfaces. Meanwhile, some dot patterns and step-shaped structures are also incorrectly detected. These misclassified...
As signals propagate through nonlinear systems their auto- and cross-correlation functions are distorted. This distortion can be analytically solved for Gaussian signals undergoing several common nonnegative transformations. We show how this solution, together with linear modeling techniques, is useful both for flexible generation of synthetic spike trains with pre-defined auto- and cross-correlation...
The "filling-in" mechanism of the blind spot in human retina has been modeled based on a possible response function for the non-classical receptive field of retinal ganglion cells. The same function, it has been shown previously, can also be used for the construction of a highly informative "raw primal sketch" in early vision. This substantiates the claims made from psychophysical...
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