Interpolating operation method and apparatus for image signals

Details Interpolating operation method and apparatus for image signals Interpolating operation method and apparatus for image signals

1996-07-15

1999-05-18

Shalwala, Bipin

Image analysis

Image transformation or preprocessing

Changing the image coordinates

382254, 382263, 358428, 358447, 358525, G06K9/40

Patent

active

059058226

ABSTRACT:
An original image signal, which represents an original image and is made up of a series of original image signal components Yij, is obtained. Corresponding interpolation coefficients Bij and Cij, which are set for each of the original image signal components Yij, in two different interpolating functions f and g, represented by Formulas (1) and (2), for obtaining two interpolation images having different levels of sharpness are linearly combined with each other by using Formula (3). A new interpolation coefficient Aij is thereby obtained. An interpolating operation is carried out on the original image signal components Yij with an interpolating function h, which has the new interpolation coefficient Aij and is represented by Formula (4). An interpolation image signal is thereby obtained, which is made up of a series of image signal components occurring at intervals different from those of the original image signal components Yij,

REFERENCES:
patent: 5048105 (1991-09-01), Adachi
Theo Pavlidis: "Algorithms for Graphics and Image Processing" 1982, Computer Science Press, Rockville, MD USA XP002025440.
Computer Graphics and Image Processing, vol. 1, 1972, pp. 341-359, XP000618063, A.R. Forrest: "On Coons and Other Methods for the Representation of Curved Surfaces".

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