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1. WO2009009099 - COMPUTER-ASSISTED DETECTION OF COLONIC POLYPS USING CONVEX HULL

Publication Number WO/2009/009099
Publication Date 15.01.2009
International Application No. PCT/US2008/008476
International Filing Date 10.07.2008
IPC
G06T 7/00 2006.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
CPC
G06T 2207/30032
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
30Subject of image; Context of image processing
30004Biomedical image processing
30028Colon; Small intestine
30032Colon polyp
G06T 7/0012
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
0002Inspection of images, e.g. flaw detection
0012Biomedical image inspection
G06T 7/64
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
60Analysis of geometric attributes
64of convexity or concavity
Applicants
  • SIEMENS MEDICAL SOLUTIONS USA, INC. [US]/[US] (AllExceptUS)
  • WOLF, Matthias [DE]/[US] (UsOnly)
  • SALGANICOFF, Marcos [US]/[US] (UsOnly)
Inventors
  • WOLF, Matthias
  • SALGANICOFF, Marcos
Agents
  • MONTGOMERY, Francis G.
Priority Data
12/169,78109.07.2008US
60/948,76410.07.2007US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) COMPUTER-ASSISTED DETECTION OF COLONIC POLYPS USING CONVEX HULL
(FR) DÉTECTION ASSISTÉE PAR ORDINATEUR POUR POLYPES EN COLONIE PAR ENVELOPPE CONVEXE
Abstract
(EN)
A method for performing computer-assisted diagnosis includes receiving a plurality of two-dimensional views of an internal structure (S51), defining a search space around one or more areas of analysis within each view of the internal structure (S54), calculating a convex hull for each area of analysis within each search space of each view of the internal structure (S55), determining a set of foreground pixels that are located within the convex hull for each area of analysis within each search space within each view of the internal structure (S56), and for each area of analysis, merging the set of foreground pixels that are located within the convex hull from each view (S57).
(FR)
L'invention concerne un procédé de diagnostic assisté par ordinateur. Le procédé consiste à recevoir une pluralité de vues bidimensionnelles d'une structure interne (S51) ; à définir un espace de recherche autour d'une ou plusieurs zones d'analyse de chaque vue de la structure interne (S54) ; à calculer une enveloppe convexe pour chaque zone d'analyse de chaque espace de recherche de chaque vue de la structure interne (S55) ; à déterminer un ensemble de pixels de premier plan situé dans l'enveloppe convexe de chaque zone d'analyse de chaque espace de recherche de chaque vue de la structure interne (S56) ; et, pour chaque zone d'analyse, à fusionner l'ensemble de pixels de premier plan situés dans l'enveloppe convexe de chaque vue (S57).
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