WO2000079779A3 - System and method for differentiating between image foreground and background in an image based on an invisible keying signal - Google Patents

System and method for differentiating between image foreground and background in an image based on an invisible keying signal Download PDF

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Publication number
WO2000079779A3
WO2000079779A3 PCT/IB2000/000896 IB0000896W WO0079779A3 WO 2000079779 A3 WO2000079779 A3 WO 2000079779A3 IB 0000896 W IB0000896 W IB 0000896W WO 0079779 A3 WO0079779 A3 WO 0079779A3
Authority
WO
WIPO (PCT)
Prior art keywords
image
background
foreground
matte
light
Prior art date
Application number
PCT/IB2000/000896
Other languages
French (fr)
Other versions
WO2000079779A2 (en
Inventor
Moshe Ben-Ezra
Shmuel Peleg
Original Assignee
Yissum Res Dev 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 Yissum Res Dev Co filed Critical Yissum Res Dev Co
Priority to AU54196/00A priority Critical patent/AU5419600A/en
Publication of WO2000079779A2 publication Critical patent/WO2000079779A2/en
Publication of WO2000079779A3 publication Critical patent/WO2000079779A3/en

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Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B15/00—Special procedures for taking photographs; Apparatus therefor
    • G03B15/08—Trick photography
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/272—Means for inserting a foreground image in a background image, i.e. inlay, outlay

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Studio Circuits (AREA)

Abstract

An image recording studio systems (10) for differentiating between image foreground and background in an image based on an invisible keying signal that according with different polarization characteristics. A generated matte (36) is used in separating the foreground from the background which allows for substituting a background from a different image with the foreground in a composite image. A matte geneation system (30) generates a matte from images recorded by the image recording studio (10). The recorded image divided into light and dark images (33, 34), while the foreground objects (11) appearing approximately the same intensity in both images, the background in the light image (33) apears relatively light and appears to be opposite in the dark image (34). The matte generation system (30) generates a matte (36) in relation to the absolute brightness as between the light and dark images (33, 34) which may employed a non-linear sigmoid funcion.
PCT/IB2000/000896 1999-06-21 2000-06-21 System and method for differentiating between image foreground and background in an image based on an invisible keying signal WO2000079779A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU54196/00A AU5419600A (en) 1999-06-21 2000-06-21 System and method for differentiating between image foreground and background in an image based on an invisible keying signal

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US13987799P 1999-06-21 1999-06-21
US60/139,877 1999-06-21

Publications (2)

Publication Number Publication Date
WO2000079779A2 WO2000079779A2 (en) 2000-12-28
WO2000079779A3 true WO2000079779A3 (en) 2001-06-28

Family

ID=22488694

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2000/000896 WO2000079779A2 (en) 1999-06-21 2000-06-21 System and method for differentiating between image foreground and background in an image based on an invisible keying signal

Country Status (2)

Country Link
AU (1) AU5419600A (en)
WO (1) WO2000079779A2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7724952B2 (en) 2006-05-15 2010-05-25 Microsoft Corporation Object matting using flash and no-flash images
GB2473503B (en) * 2009-09-15 2015-02-11 Metail Ltd System and method for image processing

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796990A (en) * 1983-07-01 1989-01-10 Paul Crothers Method and apparatus for superimposing scenes
US5631976A (en) * 1994-04-29 1997-05-20 International Business Machines Corporation Object imaging system
US5917553A (en) * 1996-10-22 1999-06-29 Fox Sports Productions Inc. Method and apparatus for enhancing the broadcast of a live event
US6005959A (en) * 1995-02-17 1999-12-21 International Business Machines Corporation Produce size recognition system
US6064521A (en) * 1997-05-14 2000-05-16 Burke; Douglas Polarizing resonant scattering three dimensional image screen and display systems

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796990A (en) * 1983-07-01 1989-01-10 Paul Crothers Method and apparatus for superimposing scenes
US5631976A (en) * 1994-04-29 1997-05-20 International Business Machines Corporation Object imaging system
US6005959A (en) * 1995-02-17 1999-12-21 International Business Machines Corporation Produce size recognition system
US5917553A (en) * 1996-10-22 1999-06-29 Fox Sports Productions Inc. Method and apparatus for enhancing the broadcast of a live event
US6064521A (en) * 1997-05-14 2000-05-16 Burke; Douglas Polarizing resonant scattering three dimensional image screen and display systems

Also Published As

Publication number Publication date
AU5419600A (en) 2001-01-09
WO2000079779A2 (en) 2000-12-28

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