Patent ID: 7349936
Filing Date: 2008-03-25
Classification: G06F

Abstract:
1. An apparatus for carrying out an interpolation method of defining a function F on a one-dimensional structured grid formed on a one-dimensional real region, the function being defined through definition of a value thereof at a center of each cell within the one-dimensional structured grid, as an interpolation function H, to produce image data indicative of an object, the apparatus comprising: a setting device that sets, with respect to a cell of interest on the one-dimensional structured grid, a slope to zero if a forward difference and a backward difference of the function F have different signs, and to a value twice as large as a smaller one of absolute values of the forward difference and the backward difference if the forward difference and the backward difference have the same sign; a definition device that defines the function F on a partial region of the one-dimensional real region determined by the cell of interest, by a linear function having a value of F0 at a center of the cell of interest and the slope; and an outputting device that outputs image data according to the function F.