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Automatic navigation for virtual endoscopy

  • US 20030152897A1
  • Filed: 12/18/2002
  • Published: 08/14/2003
  • Est. Priority Date: 12/20/2001
  • Status: Abandoned Application
First Claim
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1. A method for navigating a viewpoint of a virtual endoscope in a lumen of a structure, the method comprising 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; and

    (f)moving the viewpoint to the second center point.

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