In this paper, we propose a novel mathematical model to address segmentation from an aerial and satellite imagery. Segmentation is performed through the consistent recovery of the zero iso-surfaces of a level set function towards image’s foreground (desired object for extraction) and background discrimination. The level set method is embedded in a geodesic active contours variational formulatio...

We have been developing a stochastic model for figure-ground separation[9][3][12]. The model selects/constructs the foreground with preference for figures with “more convex” shapes. When these models are applied to illusory figures ([7]) they yield perceptually accurate selection of figure and background. The approach is based on an “entropy” measure of a region dijfksion Markov model from a se...

Computing the shapes of object boundaries from fragmentary image contours poses a formidable problem for the visual system. We investigated the extrapolation of contour shape by human vision. Measurements of extrapolation position and orientation were taken at six distances from the point of occlusion, thereby yielding a detailed representation of the extrapolated contours. Analyses of these me...

Image intensity and edge are two major sources of information for estimating the motion in the image plane. The 2-D motion obtained by analyzing the deformation of intensity and/or edges is used to recover the 3-D motion and structure. In this paper we show that the motion defined by the image intensity differs from the motion revealed by the (zerocrossing) edge. Understanding of this discrepan...

extended abstractintroductiona map is a drawing ground features on one side of the paper. the cartographic maps are representations of the earth upon a flat surface in the smaller scale than it’s true. large scale maps cover relatively small regions in great detail and small scale maps cover large regions such as nations, continents and the whole globe. logical connection between the features a...