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1. WO2020109813 - RECONSTRUCTION METHOD OF ORGAN VESSEL CENTERLINE

Publication Number WO/2020/109813
Publication Date 04.06.2020
International Application No. PCT/GB2019/053380
International Filing Date 29.11.2019
IPC
G06T 7/55 2017.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
50Depth or shape recovery
55from multiple images
CPC
G06T 2207/10121
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10116X-ray image
10121Fluoroscopy
G06T 2207/30101
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
30101Blood vessel; Artery; Vein; Vascular
G06T 2207/30172
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
30172Centreline of tubular or elongated structure
G06T 7/55
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
50Depth or shape recovery
55from multiple images
Applicants
  • OXFORD UNIVERSITY INNOVATION LIMITED [GB]/[GB]
Inventors
  • BANERJEE, Abhirup
  • CHOUDHURY, Robin P.
  • GRAU, Vicente
Agents
  • DEHNS
Priority Data
1819596.630.11.2018GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) RECONSTRUCTION METHOD OF ORGAN VESSEL CENTERLINE
(FR) PROCÉDÉ DE RECONSTRUCTION D'UNE LIGNE CENTRALE DE VAISSEAU D'ORGANE
Abstract
(EN)
The present invention relates to amethod of producing a 3D centerline of an organ vessel from a plurality of 2D x-ray images. The method comprises the steps of producing a point-cloud of 3D points which represent intersecting and non-intersecting points between projection lines from the 2D images to their respective x-ray sources; fitting a compound curve to the points in the point-cloud of 3D points; removing outliers from the point-cloud;fitting a new compound curve to the remaining points in the point- cloud of 3D points; and repeating certain steps, wherein the resultant compound curve represents the 3D centerline of the organ vessel. The method minimizes reconstruction errors and produces an optimally-reconstructed 3D vessel skeleton.
(FR)
La présente invention concerne un procédé de production d'une ligne centrale en 3D d'un vaisseau d'organe à partir d'une pluralité d'images radiographiques en 2D. Le procédé comprend les étapes consistant : à produire un nuage de points de points en 3D qui représentent des points d'intersection et de non-intersection entre des lignes de projection des images en 2D vers leurs sources radiographiques respectives; à adapter une courbe composée aux points dans le nuage de points des points en 3D; à éliminer les valeurs aberrantes du nuage de points; à adapter une nouvelle courbe composée aux points restants dans le nuage de points des points en 3D; à répéter certaines étapes, la courbe composée résultante représentant la ligne centrale en 3D du vaisseau d'organe. Le procédé réduit à un minimum les erreurs de reconstruction et produit un squelette de vaisseau en 3D reconstruit de manière optimale.
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