Hough Transform (HT) is a method for shape extraction that uses a parameter accumulator array. Based on the analysis of generic conic equation it is possible to establish a robust approach for conic shape identification in images if some aspects are respected. This paper introduces a unique methodology to detect any conic equation parameters using the HT idea. The basis of the formulation here ...

Abstract A novel system which is specially designed for measuring effectiveness of small-scale magnetic shields in a liquid helium Dewar introduced this paper. This mainly applied to test the shielding performance multilayer structure used field single-flux-quantum (SFQ) electronics testing at temperature. allows using fluxgate magnetometer measure flux instead superconducting quantum interfere...

An occluding contour of a sphere is projected to a conic in the perspective image, and such a conic is called a sphere image. Recently, it has been discovered that each sphere image is tangent to the image of the absolute conic at two double-contact image points. The double-contact theorem describes the properties of three conics which all have double contact with another conic. This theorem pr...

A new method is presented for identifying and comparing closed, bounded, free-form curves that are defined by even implicit polynomial (IP) equations in the Cartesian coordinates x and y. The method provides a new expression for an IP involving a product of conic factors with unique conic factor centers. The critical points for an IP curve also are defined. The conic factor centers and the crit...

Method of deviation was introduced in [1] for drawing implicit curves. This paper develops algorithms for drawing lines and conic sections using method of deviation. All computations are performed in integer mode. The lines and conic sections drawn are compared with those drawn using mid point algorithm.