Title:
IMAGE SEGMENTATION
Document Type and Number:
WIPO Patent Application WO2003003303
Kind Code:
A3
Abstract:
In a method of segmenting an image a first, seed pixel unit is selected from a first group of pixel units in which the pixel units all have substantially the same grey-level intensity. The grey-level intensity of said first pixel unit is compared with the grey-level intensity of each of selected adjacent pixel units of said image and those pixel units with grey levels within a selected range are assigned as a pixel unit of the same region as said first pixel unit. This comparison process is repeated for each of the pixel units in the image, those already having been assigned being ignored. A further seed pixel unit is selected from a further group of pixel units in which the pixel units all have substantially the same grey-level intensity and the comparison process repeated for all of the unassigned pixel units. Further seed pixel units are selected and the comparison process repeated until all the pixel units of the image have been assigned. A watershed transform is then applied to provide the segmented image.
Inventors:
BURNHAM KEITH J (GB)
HAAS OLIVIER (GB)
BUENO MARIA GLORIA (FR)
HAAS OLIVIER (GB)
BUENO MARIA GLORIA (FR)
Application Number:
PCT/GB2002/002945
Publication Date:
September 18, 2003
Filing Date:
June 27, 2002
Export Citation:
Assignee:
UNIV COVENTRY (GB)
BURNHAM KEITH J (GB)
HAAS OLIVIER (GB)
BUENO MARIA GLORIA (FR)
BURNHAM KEITH J (GB)
HAAS OLIVIER (GB)
BUENO MARIA GLORIA (FR)
International Classes:
G06T5/00; (IPC1-7): G06T5/00
Other References:
GONZALEZ R C ET AL: "Digital Image Processing", DIGITAL IMAGE PROCESSING, XX, XX, PAGE(S) 458-465, READING, MASSACHUSETTS, XP002248957
ZUCKER S W: "REGION GROWING: CHILDHOOD AND ADOLESCENCE", COMPUTER GRAPHICS AND IMAGE PROCESSING, ACADEMIC PRESS. NEW YORK, US, vol. 5, no. 3, September 1976 (1976-09-01), pages 382 - 399, XP001149042
BUENO G ET AL: "Watershed transform for segmenting medical images", SYSTEMS SCIENCE, 1997, WROCLAW TECH. UNIV. PRESS, POLAND, vol. 23, no. 3, pages 95 - 106, XP008020084, ISSN: 0137-1223
ZEUGE, W.: "Skripte zur Mathematik - Wahrscheinlichkeitsrechnung, Statistik, Ausgleichsrechnung", 1998, UNIVERSITÄT HAMBURG, HAMBURG WANDSBEK, PAGES 49-53,, XP002248958
VICKERS J P ET AL: "Histogram-based segmentation of pelvic computed tomographic images", WORKSHOP ON EUROPEAN SCIENTIFIC AND INDUSTRIAL COLLABORATION. WESIC '99. PROMOTING: ADVANCED TECHNOLOGIES IN MANUFACTURING, WORKSHOP ON EUROPEAN SCIENTIFIC AND INDUSTRIAL COLLABORATION. WESIC '99. PROMOTING: ADVANCED TECHNOLOGIES IN MANUFACTURING, NE, 1999, Newport, South Wales, UK, Univ. Wales College, Newport, UK, pages 291 - 298, XP008020078, ISBN: 1-899274-23-5
ZUCKER S W: "REGION GROWING: CHILDHOOD AND ADOLESCENCE", COMPUTER GRAPHICS AND IMAGE PROCESSING, ACADEMIC PRESS. NEW YORK, US, vol. 5, no. 3, September 1976 (1976-09-01), pages 382 - 399, XP001149042
BUENO G ET AL: "Watershed transform for segmenting medical images", SYSTEMS SCIENCE, 1997, WROCLAW TECH. UNIV. PRESS, POLAND, vol. 23, no. 3, pages 95 - 106, XP008020084, ISSN: 0137-1223
ZEUGE, W.: "Skripte zur Mathematik - Wahrscheinlichkeitsrechnung, Statistik, Ausgleichsrechnung", 1998, UNIVERSITÄT HAMBURG, HAMBURG WANDSBEK, PAGES 49-53,, XP002248958
VICKERS J P ET AL: "Histogram-based segmentation of pelvic computed tomographic images", WORKSHOP ON EUROPEAN SCIENTIFIC AND INDUSTRIAL COLLABORATION. WESIC '99. PROMOTING: ADVANCED TECHNOLOGIES IN MANUFACTURING, WORKSHOP ON EUROPEAN SCIENTIFIC AND INDUSTRIAL COLLABORATION. WESIC '99. PROMOTING: ADVANCED TECHNOLOGIES IN MANUFACTURING, NE, 1999, Newport, South Wales, UK, Univ. Wales College, Newport, UK, pages 291 - 298, XP008020078, ISBN: 1-899274-23-5
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