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CA2327843A1 - System and method for registration of cubic fisheye hemispherical images - Google Patents

System and method for registration of cubic fisheye hemispherical images Download PDF

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Publication number
CA2327843A1
CA2327843A1 CA002327843A CA2327843A CA2327843A1 CA 2327843 A1 CA2327843 A1 CA 2327843A1 CA 002327843 A CA002327843 A CA 002327843A CA 2327843 A CA2327843 A CA 2327843A CA 2327843 A1 CA2327843 A1 CA 2327843A1
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CA
Canada
Prior art keywords
colour
images
systems
image
pixel
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA002327843A
Other languages
French (fr)
Other versions
CA2327843C (en
Inventor
Jeff Hack
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
iLookabout Inc
Original Assignee
JUST ICED CUBED INVENTIONS Inc
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 to CA002327843A priority Critical patent/CA2327843C/en
Application filed by JUST ICED CUBED INVENTIONS Inc filed Critical JUST ICED CUBED INVENTIONS Inc
Priority to CA2431214A priority patent/CA2431214C/en
Priority to US10/433,906 priority patent/US7412091B2/en
Priority to AU2002215743A priority patent/AU2002215743A1/en
Priority to EP01999920A priority patent/EP1342211A2/en
Priority to PCT/CA2001/001755 priority patent/WO2002047028A2/en
Publication of CA2327843A1 publication Critical patent/CA2327843A1/en
Priority to US12/216,770 priority patent/US7865013B2/en
Application granted granted Critical
Publication of CA2327843C publication Critical patent/CA2327843C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/04—Context-preserving transformations, e.g. by using an importance map
    • G06T3/047—Fisheye or wide-angle transformations

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)

Abstract

Systems and methods for registering hemispheric images obtained using a fisheye lens for panoramic viewing, relating to spatial alignment and colour balancing of complement half-side images derived from the hemispheric images. The systems and methods for spatial alignment determine the displacement of the digitized recorded images using a single translation and rotation model of distortion, which further evaluates the centre of projection, and the extent of translation and rotation. The system and method for colour balancing iteratively increase (or decrease) the values of pixels near the edge (discontinuity) between the two half-sides of an image, each time taking into consideration the average difference of pixel colour across a smaller strip of the edge near the pixel. This invention removes the colour differential but does not remove any detail underlying the features of the image.
CA002327843A 2000-12-07 2000-12-07 System and method for registration of cubic fisheye hemispherical images Expired - Lifetime CA2327843C (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
CA002327843A CA2327843C (en) 2000-12-07 2000-12-07 System and method for registration of cubic fisheye hemispherical images
US10/433,906 US7412091B2 (en) 2000-12-07 2001-12-07 System and method for registration of cubic fisheye hemispherical images
AU2002215743A AU2002215743A1 (en) 2000-12-07 2001-12-07 Systems and methods for registration of hemispheric images for panomaric viewing
EP01999920A EP1342211A2 (en) 2000-12-07 2001-12-07 Systems and methods for registration of hemispheric images for panomaric viewing
CA2431214A CA2431214C (en) 2000-12-07 2001-12-07 System and method for registration of cubic fisheye hemishpherical images
PCT/CA2001/001755 WO2002047028A2 (en) 2000-12-07 2001-12-07 Systems and methods for registration of hemispheric images for panomaric viewing
US12/216,770 US7865013B2 (en) 2000-12-07 2008-07-10 System and method for registration of cubic fisheye hemispherical images

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002327843A CA2327843C (en) 2000-12-07 2000-12-07 System and method for registration of cubic fisheye hemispherical images

Publications (2)

Publication Number Publication Date
CA2327843A1 true CA2327843A1 (en) 2002-06-07
CA2327843C CA2327843C (en) 2009-03-31

Family

ID=4167852

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002327843A Expired - Lifetime CA2327843C (en) 2000-12-07 2000-12-07 System and method for registration of cubic fisheye hemispherical images

Country Status (1)

Country Link
CA (1) CA2327843C (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108053385A (en) * 2018-01-24 2018-05-18 桂林电子科技大学 A kind of real-time correction system of flake video and method

Also Published As

Publication number Publication date
CA2327843C (en) 2009-03-31

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Effective date: 20201207