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1. WO2012068194 - ENDOSCOPE GUIDANCE BASED ON IMAGE MATCHING

Publication Number WO/2012/068194
Publication Date 24.05.2012
International Application No. PCT/US2011/060902
International Filing Date 16.11.2011
IPC
A61B 1/04 2006.01
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes; Illuminating arrangements therefor
04combined with photographic or television appliances
G06F 19/00 2011.01
GPHYSICS
06COMPUTING; CALCULATING OR COUNTING
FELECTRIC DIGITAL DATA PROCESSING
19Digital computing or data processing equipment or methods, specially adapted for specific applications
CPC
A61B 1/00009
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
00002Operational features of endoscopes
00004characterised by electronic signal processing
00009of image signals
A61B 1/0002
AHUMAN NECESSITIES
61MEDICAL OR VETERINARY SCIENCE; HYGIENE
BDIAGNOSIS; SURGERY; IDENTIFICATION
1Instruments for performing medical examinations of the interior of cavities or tubes of the body by visual or photographical inspection, e.g. endoscopes
00002Operational features of endoscopes
0002provided with data storages
G06T 2207/10068
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
2207Indexing scheme for image analysis or image enhancement
10Image acquisition modality
10068Endoscopic image
G06T 2207/30016
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
30016Brain
G06T 2207/30061
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
30061Lung
G06T 7/74
GPHYSICS
06COMPUTING; CALCULATING; COUNTING
TIMAGE DATA PROCESSING OR GENERATION, IN GENERAL
7Image analysis
70Determining position or orientation of objects or cameras
73using feature-based methods
74involving reference images or patches
Applicants
  • C2CURE INC. [US]/[US] (AllExceptUS)
  • BARAK, Yarom [IL]/[IL] (UsOnly)
  • WOLF, Stuart [IL]/[IL] (UsOnly)
Inventors
  • BARAK, Yarom
  • WOLF, Stuart
Agents
  • GROLZ, Edward W.
Priority Data
12/949,38718.11.2010US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) ENDOSCOPE GUIDANCE BASED ON IMAGE MATCHING
(FR) GUIDAGE D'ENDOSCOPE BASÉ SUR LA CORRESPONDANCE D'IMAGES
Abstract
(EN)
A method of navigating a cavity of a subject employing images from a previous navigation is provided. In a first endoscopic examination, a set of schemas and at least one bookmark are saved in a data storage device. Each schema includes at least a still image in a cavity and a direction of a distal end. At least one bookmark is defined as at least one schema at a point of interest. In a second endoscopic examination, still images during navigation of an endoscope are compared with still images in the set of schemas to find a match, and use the information derived from the match to determine the location and the orientation of the distal end. An endoscopic system for effecting this method and a non-transitory machine-readable storage medium embodying a program for operating such an endoscopic system are also provided.
(FR)
La présente invention concerne un procédé de navigation dans une cavité d'un sujet, le procédé utilisant des images issues d'une précédente navigation. Dans un premier examen endoscopique, un jeu de schémas et au moins un signet sont enregistrés dans un dispositif de stockage de données. Chaque schéma comprend au moins une image fixe dans une cavité et une direction d'une extrémité distale. Au moins un signet est défini comme étant au moins un schéma en un point d'intérêt. Dans un second examen endoscopique, les images fixes pendant la navigation d'un endoscope sont comparées aux images fixes du jeu de schémas afin de trouver une correspondance et d'utiliser les informations dérivées de la correspondance afin de déterminer l'emplacement et l'orientation de l'extrémité distale. La présente invention concerne également un système endoscopique permettant d'exécuter ce procédé et un support de stockage pouvant être lu par ordinateur non transitoire contenant un programme permettant d'utiliser un tel système endoscopique.
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