WO1990016035A3 - Interpolateur a image numerique - Google Patents

Interpolateur a image numerique Download PDF

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Publication number
WO1990016035A3
WO1990016035A3 PCT/US1990/003372 US9003372W WO9016035A3 WO 1990016035 A3 WO1990016035 A3 WO 1990016035A3 US 9003372 W US9003372 W US 9003372W WO 9016035 A3 WO9016035 A3 WO 9016035A3
Authority
WO
WIPO (PCT)
Prior art keywords
interpolator
pixel values
interpolation
digital image
row
Prior art date
Application number
PCT/US1990/003372
Other languages
English (en)
Other versions
WO1990016035A2 (fr
Inventor
Richard Kerr
Robert Krogstad
Original Assignee
Eastman Kodak Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eastman Kodak Co filed Critical Eastman Kodak Co
Priority to EP90910043A priority Critical patent/EP0429634B1/fr
Priority to DE69028075T priority patent/DE69028075T2/de
Publication of WO1990016035A2 publication Critical patent/WO1990016035A2/fr
Publication of WO1990016035A3 publication Critical patent/WO1990016035A3/fr

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
    • G06F17/10—Complex mathematical operations
    • G06F17/17—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method
    • G06F17/175—Function evaluation by approximation methods, e.g. inter- or extrapolation, smoothing, least mean square method of multidimensional data
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/10—Selection of transformation methods according to the characteristics of the input images

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Data Mining & Analysis (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Physics (AREA)
  • Computational Mathematics (AREA)
  • Algebra (AREA)
  • Databases & Information Systems (AREA)
  • Software Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Complex Calculations (AREA)

Abstract

Un interpolateur servant à agrandir ou à réduire une image numérique comprend une mémoire à coefficients d'interpolation contenant des coefficients d'interpolation représentant un noyau d'interpolation à une dimension. Un interpolateur de lignes reçoit des valeurs de points d'images, récupère des coefficients d'interpolation de la mémoire, et produit des valeurs de points interpolées en interpolant dans le sens d'une ligne. Un interpolateur de colonnes reçoit des lignes multiples de valeurs de points interpolées à partir de l'interpolateur de lignes, récupère des coefficients d'interpolation de la mémoire, et produit des lignes de valeurs de points interpolées en interpolant dans le sens d'une colonne.
PCT/US1990/003372 1989-06-16 1990-06-13 Interpolateur a image numerique WO1990016035A2 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90910043A EP0429634B1 (fr) 1989-06-16 1990-06-13 Interpolateur a image numerique
DE69028075T DE69028075T2 (de) 1989-06-16 1990-06-13 Digitaler bildinterpolator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US36716889A 1989-06-16 1989-06-16
US367,168 1989-06-16

Publications (2)

Publication Number Publication Date
WO1990016035A2 WO1990016035A2 (fr) 1990-12-27
WO1990016035A3 true WO1990016035A3 (fr) 1991-01-24

Family

ID=23446172

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1990/003372 WO1990016035A2 (fr) 1989-06-16 1990-06-13 Interpolateur a image numerique

Country Status (5)

Country Link
US (1) US5125042A (fr)
EP (1) EP0429634B1 (fr)
JP (1) JPH04500419A (fr)
DE (1) DE69028075T2 (fr)
WO (1) WO1990016035A2 (fr)

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Also Published As

Publication number Publication date
DE69028075T2 (de) 1997-03-13
DE69028075D1 (de) 1996-09-19
EP0429634A1 (fr) 1991-06-05
EP0429634B1 (fr) 1996-08-14
JPH04500419A (ja) 1992-01-23
WO1990016035A2 (fr) 1990-12-27
US5125042A (en) 1992-06-23

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