Local search algorithms often get trapped in local optima. Algorithms such as tabu search and simulated annealing ’escape’ local optima by accepting nonimproving moves. Another possibility is to dynamically change between representations; a local optimum under one representation may not be a local optimum under another. Shifting is a mechanism which dynamically switches between Gray code repres...

We test a biologically motivated filtering method [9] for noise decreasing in optical flow fields. We use the task of heading detection from optic flow as a way to estimate improvements of flow fields generated by a standard algorithm. The image sequences which we use for the testing are directly calculated from three dimensional real world data assuming a given self motion. Thus we retain the ...

The aim of this work was to develop a system based on modular neural networks and multi-feature texture analysis that will facilitate the automated interpretation of cloud images. This will speed up the interpretation process and provide continuity in the application of satellite imagery for weather forecasting. A series of infrared satellite images from the Geostationary satellite METEOSAT7 we...

Scaling of Plane Figures That Assures Faithful Digitization p. 87 Computing Admissible Rotation Angles from Rotated Digital Images p. 99 On the Number of hv-Convex Discrete Sets p. 112 Finding the Orthogonal Hull of a Digital Object: A Combinatorial Approach p. 124 A Discrete Approach for Supervised Pattern Recognition p. 136 Image Representation, Segmentation, Grouping, and Reconstruction Robu...

Image smoothing is a primary step to remove noise and sharpens the important edge features in the image. The present paper proposes a new Optimal Morphological Filter (OMF) for noise removal in the image. The impulsive noise take gray level values as minimum or maximum from the dynamic gray level range. Optimal notations are proposed in this paper to eliminate the noise pixels corrupted by low ...

neighborhood attachment is closely related to concrete and abstract conceptions that set the scene for a variety of interactions among the residents. it is on the basis of social-physical location which happens over time. neighborhood attachment also enhances the possibility of residents’ social participation in urban neighborhoods and has a bilateral relationship with residents’ satisfaction. ...

Graphene based optical devices are highly recommended and interested for integrated optical circuits. As a main component of an optical link, a photodetector based on graphene nano-ribbons is proposed and studied. A quantum transport model is presented for simulation of a graphene nano-ribbon (GNR) -based photo-transistor based on non-equilibrium Green’s function method. In the proposed model a...