Method and system of automatic navigation for virtual endoscopy

A method for navigating a viewpoint of a virtual endoscope in a lumen of a structure is provided. The method includes the steps of (a)determining an initial viewpoint of the virtual endoscope, the initial viewpoint having a first center point and first direction; (b)determining a longest ray from th...

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Bibliographic Details
Main Author GEIGER BERNHARD
Format Patent
LanguageEnglish
Published 25.04.2007
Subjects
CALCULATING
COMPUTING
COUNTING
DIAGNOSIS
HUMAN NECESSITIES
HYGIENE
IDENTIFICATION
IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
MEDICAL OR VETERINARY SCIENCE
PHYSICS
SURGERY
TESTING
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Summary:A method for navigating a viewpoint of a virtual endoscope in a lumen of a structure is provided. The method includes the steps of (a)determining an initial viewpoint of the virtual endoscope, the initial viewpoint having a first center point and first direction; (b)determining a longest ray from the initial viewpoint to the lumen, the longest ray having a first longest ray direction; (c)determining a second direction between the first direction of the initial viewpoint and the first longest ray direction; (d)turning the viewpoint to the second direction and moving the initial viewpoint a first predetermined distance in a first direction of the initial viewpoint; (e)calculating a second center point of the viewpoint; (f)moving the viewpoint to the second center point; and repeating steps (b) through (f) until the viewpoint reaches an intended target.
Bibliography:Application Number: CN20028025809