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WO2008003944A3 - Image processing and vectorisation - Google Patents

Image processing and vectorisation Download PDF

Info

Publication number
WO2008003944A3
WO2008003944A3 PCT/GB2007/002470 GB2007002470W WO2008003944A3 WO 2008003944 A3 WO2008003944 A3 WO 2008003944A3 GB 2007002470 W GB2007002470 W GB 2007002470W WO 2008003944 A3 WO2008003944 A3 WO 2008003944A3
Authority
WO
WIPO (PCT)
Prior art keywords
contour
image data
format image
data
solution points
Prior art date
Application number
PCT/GB2007/002470
Other languages
French (fr)
Other versions
WO2008003944A2 (en
Inventor
John Patterson
Philip Wills
Original Assignee
Univ Glasgow
John Patterson
Philip Wills
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 Univ Glasgow, John Patterson, Philip Wills filed Critical Univ Glasgow
Publication of WO2008003944A2 publication Critical patent/WO2008003944A2/en
Publication of WO2008003944A3 publication Critical patent/WO2008003944A3/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T9/00—Image coding
    • G06T9/20—Contour coding, e.g. using detection of edges

Landscapes

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

Abstract

A method is provided for converting raster format image data to vector format image data comprising the step of generating contour data for a plurality of isochromic contours, whereby each isochromic contour is determined by applying a curve fitting process to a plurality of possible solution points and spatial error bounds for said solution points, wherein said solution points and error bounds are based on said raster format image data, said solution points being deemed to have colour values equal to the colour value of the contour, and the contour data is sufficient to allow reconstruction of said contour using the curve fitting process. Also provided are a method of converting raster format image data to vector format image data comprising the steps of determining a minimum set of contours to be generated by using diffusion equations to define a plurality of watersheds and generating contour data defining a contour around each watershed and methods of rendering an image from vector format image data and of determining errors in pixel colour values.
PCT/GB2007/002470 2006-07-03 2007-07-03 Image processing and vectorisation WO2008003944A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0613199A GB0613199D0 (en) 2006-07-03 2006-07-03 Image processing and vectorisation
GB0613199.9 2006-07-03

Publications (2)

Publication Number Publication Date
WO2008003944A2 WO2008003944A2 (en) 2008-01-10
WO2008003944A3 true WO2008003944A3 (en) 2008-07-31

Family

ID=36888551

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2007/002470 WO2008003944A2 (en) 2006-07-03 2007-07-03 Image processing and vectorisation

Country Status (2)

Country Link
GB (1) GB0613199D0 (en)
WO (1) WO2008003944A2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9497380B1 (en) 2013-02-15 2016-11-15 Red.Com, Inc. Dense field imaging

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100259683A1 (en) * 2009-04-08 2010-10-14 Nokia Corporation Method, Apparatus, and Computer Program Product for Vector Video Retargeting
GB2504653A (en) * 2012-06-11 2014-02-12 Univ Bath Vector contour coding methods
CN105139452B (en) * 2015-09-01 2018-01-05 电子科技大学 A kind of Geologic Curve method for reconstructing based on image segmentation
CN113129402B (en) * 2021-04-19 2024-01-30 中国航发沈阳发动机研究所 Cross section data cloud picture drawing method
CN114296398B (en) * 2021-11-16 2024-04-05 中南大学 High-speed high-precision interpolation method for laser cutting
CN115631350B (en) * 2022-11-17 2023-04-14 博奥生物集团有限公司 Method and device for identifying colors of canned image

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5621819A (en) * 1994-04-22 1997-04-15 Victor Company Of Japan, Ltd. Multidimensional multi-valued color image compression and decompression method
US5694331A (en) * 1993-10-17 1997-12-02 Hewlett-Packard Company Method for expressing and restoring image data

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5694331A (en) * 1993-10-17 1997-12-02 Hewlett-Packard Company Method for expressing and restoring image data
US5621819A (en) * 1994-04-22 1997-04-15 Victor Company Of Japan, Ltd. Multidimensional multi-valued color image compression and decompression method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ZHANG S ET AL: "Vectorization of digital images using algebraic curves", COMPUTERS AND GRAPHICS, ELSEVIER, GB, vol. 22, no. 1, 25 February 1998 (1998-02-25), pages 91 - 101, XP004123429, ISSN: 0097-8493 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9497380B1 (en) 2013-02-15 2016-11-15 Red.Com, Inc. Dense field imaging

Also Published As

Publication number Publication date
WO2008003944A2 (en) 2008-01-10
GB0613199D0 (en) 2006-08-09

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