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1. WO2004111936 - IMAGE SEGMENTATION IN TIME-SERIES IMAGES

Publication Number WO/2004/111936
Publication Date 23.12.2004
International Application No. PCT/IB2004/050846
International Filing Date 07.06.2004
IPC
G06T 5/00 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
5Image enhancement or restoration
G06T 17/20 2006.1
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
173D modelling for computer graphics
20Wire-frame description, e.g. polygonalisation or tessellation
CPC
G06T 17/20
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
17Three dimensional [3D] modelling, e.g. data description of 3D objects
20Finite element generation, e.g. wire-frame surface description, ; tesselation
G06T 2207/10072
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10072Tomographic images
G06T 2207/30004
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
G06T 7/12
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
10Segmentation; Edge detection
12Edge-based segmentation
G06T 7/149
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
10Segmentation; Edge detection
149involving deformable models, e.g. active contour models
Applicants
  • PHILIPS INTELLECTUAL PROPERTY & STANDARDS GMBH [DE]/[DE] (DE)
  • KONINKLIJKE PHILIPS ELECTRONICS N. V. [NL]/[NL] (AE, AG, AL, AM, AT, AU, AZ, BA, BB, BE, BF, BG, BJ, BR, BW, BY, BZ, CA, CF, CG, CH, CI, CM, CN, CO, CR, CU, CY, CZ, DK, DM, DZ, EC, EE, EG, ES, FI, FR, GA, GB, GD, GE, GH, GM, GN, GQ, GR, GW, HR, HU, ID, IE, IL, IN, IS, IT, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MC, MD, MG, MK, ML, MN, MR, MW, MX, MZ, NA, NE, NI, NL, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SI, SK, SL, SN, SY, SZ, TD, TG, TJ, TM, TN, TR, TT, TZ, UA, UG, UZ, VC, VN, YU, ZA, ZM, ZW)
  • KAUS, Michael Reinhold [DE]/[DE] (UsOnly)
  • PEKAR, Vladimir [RU]/[DE] (UsOnly)
Inventors
  • KAUS, Michael Reinhold
  • PEKAR, Vladimir
Agents
  • VOLMER, Georg
Priority Data
03101750.216.06.2003EP
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) IMAGE SEGMENTATION IN TIME-SERIES IMAGES
(FR) SEGMENTATION D'IMAGE DANS DES IMAGES EN SÉRIES CHRONOLOGIQUES
Abstract
(EN) The basic principle of deformable models consists of the adaptation of flexible surfaces, such as triangular meshes to structures in the image. The optimal adaptation of an initial mesh is solved by energy minimization, where maintaining the shape of a geometric model is traded off against detected feature points of the surface of the structure in the image. According to the present invention, a prior shape model M (t) is combined with adaptation results S (t - 1) of a previous image. Advantageously, this provides for a robust segmentation of moving or deforming objects.
(FR) Le principe de base des modèles déformables consiste en l'adaptation de surfaces souples, par exemple des mailles triangulaires, à des structures de l'image. L'adaptation optimale d'une maille initiale est résolue grâce à la minimisation énergétique, le maintien de la forme d'un modèle géométrique faisant l'objet d'un compromis au profit des points caractéristiques détectés de la surface de la structure dans l'image. Selon la présente invention, un modèle de forme préalable M (t) est combiné avec les résultats d'adaptation S (t-1) d'une image précédente. Avantageusement, cela permet une segmentation polyvalente d'objets en mouvement ou en cours de déformation.
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