much like spherical lenses do, but in only one dimension. This makes them useful for altering the proportions of an image, either singly or when used in pairs. They can transform a point image into a line image or change the height of an image without altering its width (or vice versa). Applications of this type include anamorphic beam shaping and correcting the elliptical output of a laser dio...

Selecting items from a collection is one of the most common tasks users perform with graphical user interfaces. Practically every application supports this task with a selection feature different from that of any other application. Defects are common, especially in manipulating selections of non-adjacent elements, and flexible selection features are often missing when they would clearly be usef...

To navigate effectively, an autonomous agent must be able to quickly and accurately determine its current location. Given an initial estimate of its position (perhaps based on dead-reckoning) and an image taken of a known environment, our agent first attempts to locate a set of landmarks (real-world objects at known locations), then uses their angular separation to obtain an improved estimate o...

Prodinger. H., How to select a loser, Discrete Mathematics 120 (1993) 149-159. N people select a loser by flipping coins. Recursively, the O-party continues until the loser is found. Among other things, it is shown that this process stops on the average after about log, N steps. Nevertheless, this very plausible result requires rather advanced methods.

the key point of super resolution process is the accurate measuring of sub-pixel shift. Any tiny error in measuring such shift leads to an incorrect image focusing. In this paper, methodology of measuring sub-pixel shift using Phase correlation (PC) are evaluated using different window functions, then modified version of (PC) method using high pass filter (HPF) is introduced . Comprehensive ana...

Crystalline porous materials have a variety of uses, such as for catalysis and separations. Identifying suitable materials for a given application can, in principle, be done by screening material databases. Such a screening requires automated high-throughput analysis tools that calculate topological and geometrical parameters describing pores. These descriptors can be used to compare, select, g...