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US 2003/0152897 A1Published application
Automatic navigation for virtual endoscopy
OwnerBernhard Geigerinventor
Life of this patent
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OwnerBernhard Geigerinventor
Estimating the term…
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.
A method for navigating a viewpoint of a virtual endoscope in a lumen of a structure, the method comprising the steps of:
The method as in 7, wherein the weight factor w is calculated as
A program storage device readable by a machine, tangibly embodying a program of instructions executable by the machine to perform method steps for navigating a viewpoint of a virtual endoscope in a lumen of a structure, the method steps comprising:
The program storage device as in 17, wherein the weight factor w is calculated as
A system for virtual endoscopy comprising:
Dependencies are inferred from the claim text.