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WO1987003980A3 - Correction d'ensemble de distorsions dans un systeme d'imagerie en temps reel - Google Patents

Correction d'ensemble de distorsions dans un systeme d'imagerie en temps reel Download PDF

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Publication number
WO1987003980A3
WO1987003980A3 PCT/US1986/002726 US8602726W WO8703980A3 WO 1987003980 A3 WO1987003980 A3 WO 1987003980A3 US 8602726 W US8602726 W US 8602726W WO 8703980 A3 WO8703980 A3 WO 8703980A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
projection
view screen
raster
vertices
Prior art date
Application number
PCT/US1986/002726
Other languages
English (en)
Other versions
WO1987003980A2 (fr
Inventor
William Marvin Bunker
Donald Mortimer Mertz
Original Assignee
Gen Electric
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
Priority claimed from US06/941,316 external-priority patent/US4862388A/en
Application filed by Gen Electric filed Critical Gen Electric
Priority to DE8787901273T priority Critical patent/DE3682065D1/de
Publication of WO1987003980A2 publication Critical patent/WO1987003980A2/fr
Publication of WO1987003980A3 publication Critical patent/WO1987003980A3/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
    • G06T3/08—Projecting images onto non-planar surfaces, e.g. geodetic screens
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T15/00—3D [Three Dimensional] image rendering
    • G06T15/10—Geometric effects
    • G06T15/20—Perspective computation

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Computing Systems (AREA)
  • Geometry (AREA)
  • Computer Graphics (AREA)
  • Image Processing (AREA)
  • Transforming Electric Information Into Light Information (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Projection Apparatus (AREA)

Abstract

Dans un système informatique de génération d'images en temps réel à correction d'ensemble incorporée de distorsions, une image pré-distorse est calculée et placée dans une trame de projection avant sa projection sur un écran de visualisation pour que l'image vue par un observateur paraîsse correcte. Selon un procédé de réalisation de la correction d'ensemble des distorsions en temps réel, les caractéristiques fixes de transfert d'une lentille de projection sont couplées au transfert scène par scène de chaque point parmi une pluralité de points depuis une trame de projection jusqu'à un emplacement sur l'écran de visualisation. Chaque image est divisée en une pluralité d'empans et des correspondances sont établies entre les coins des empans sur la trame de projection et l'écran de visualisation. La localisation des sommets des images sur l'écran de visualisation est déterminée par rapport à l'observateur et des correspondances sont établies entre les sommets et des emplacements sur la trame de projection. Une image est alors générée en localisant les empans dans lesquels se situe chaque sommet et construisant l'image sur la trame de projection en utilisant les coins des empans tracés en espace tel qu'il est vu par l'observateur et les sommets tracés en espace de projection. L'image pré-distorse reconstruite est alors projectée sur l'écran de visualisation de manière à paraître correcte à un observateur.
PCT/US1986/002726 1985-12-19 1986-12-19 Correction d'ensemble de distorsions dans un systeme d'imagerie en temps reel WO1987003980A2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE8787901273T DE3682065D1 (de) 1985-12-19 1986-12-19 Umfassende verzerrungskorrektur bei einem echtzeitabbildungssystem.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US81073785A 1985-12-19 1985-12-19
US810,737 1985-12-19
US06/941,316 US4862388A (en) 1986-12-15 1986-12-15 Dynamic comprehensive distortion correction in a real time imaging system
US941,316 1986-12-15

Publications (2)

Publication Number Publication Date
WO1987003980A2 WO1987003980A2 (fr) 1987-07-02
WO1987003980A3 true WO1987003980A3 (fr) 1987-08-27

Family

ID=27123382

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US1986/002726 WO1987003980A2 (fr) 1985-12-19 1986-12-19 Correction d'ensemble de distorsions dans un systeme d'imagerie en temps reel

Country Status (3)

Country Link
EP (1) EP0250588B1 (fr)
DE (1) DE3682065D1 (fr)
WO (1) WO1987003980A2 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4985854A (en) * 1989-05-15 1991-01-15 Honeywell Inc. Method for rapid generation of photo-realistic imagery
US5319744A (en) * 1991-04-03 1994-06-07 General Electric Company Polygon fragmentation method of distortion correction in computer image generating systems
US5764311A (en) * 1995-11-30 1998-06-09 Victor Company Of Japan, Ltd. Image processing apparatus
JP3079073B2 (ja) * 1997-09-17 2000-08-21 コナミ株式会社 画像表示装置、画像表示方法および可読記録媒体
GB201713052D0 (en) 2017-08-15 2017-09-27 Imagination Tech Ltd Single pass rendering for head mounted displays

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723805A (en) * 1971-05-12 1973-03-27 Us Navy Distortion correction system

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL72685A (en) * 1983-08-30 1988-08-31 Gen Electric Advanced video object generator
US4656521A (en) * 1985-04-01 1987-04-07 The Singer Company Digital distortion-correcting circuit for projection a flat image on a curved screen from a digital data source for a simulator projected-image visual system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3723805A (en) * 1971-05-12 1973-03-27 Us Navy Distortion correction system

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
IEEE Transactions on Acoustics, Speech and Signal Processing, Volume ASSP-33, No. 2, April 1985, (New York, US) S.I. SAYEGH et al.: "Image Design: Generation of a Prescribed Image through a Diffraction-Limited System with High-Contrast Recording", pages 460-465, see page 460, right-hand column, lines 13-31 *
Optical Engineering, Volume 24, No. 3, May/June 1985, (Bellingham, WA, USA) A.J. MORD et al.: "Electronic Image Alignment: Implementation and Applications to Imaging System Design", pages 507-515 *

Also Published As

Publication number Publication date
EP0250588A1 (fr) 1988-01-07
WO1987003980A2 (fr) 1987-07-02
EP0250588B1 (fr) 1991-10-16
DE3682065D1 (de) 1991-11-21

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