Paper Info
Title
A Method for Tracking the Camera Motion of Real Endoscope by Epipolar Geometry Analysis and Virtual Endoscopy System
Abstract
This paper describes a method for tracking the camera motion of a real endoscope by epipolar geometry analysis and image-based registration. In an endoscope navigation system, which provides navigation information to a medical doctor during an endoscopic examination, tracking the camera motion of the endoscopic camera is one of the fundamental functions. With a flexible endoscope, it is hard to directly sense the position of the camera, since we cannot attach a positional sensor at the tip of the endoscope. The proposed method consists of three parts: (1) calculation of corresponding point-pairs of two time-adjacent frames, (2) coarse estimation of the camera motion by solving the epipolar equation, and (3) fine estimation by executing image-based registration between real and virtual endoscopic views. In the method, virtual endoscopic views are obtained from X-ray CT images of real endoscopic images of the same patient. To evaluate the method, we applied it a real endoscopic video camera and X-ray CT images. The experimental results showed that the method could track the motion of the camera satisfactorily.
Year
DOI
Venue
2001
10.1007/3-540-45468-3_1
MICCAI
Keywords
Field
DocType
endoscopic examination,endoscopic camera,image-based registration,virtual endoscopy system,real endoscopic video camera,epipolar geometry analysis,virtual endoscopic view,x-ray ct image,real endoscope,real endoscopic image,camera motion,endoscope navigation system,epipolar geometry
Endoscope,Virtual endoscopy,Computer vision,Endoscopic camera,Epipolar geometry,Computer graphics (images),Computer science,Camera auto-calibration,Navigation system,Camera resectioning,Artificial intelligence,Video camera
Conference
ISBN
Citations 
PageRank 
3-540-42697-3
8
1.81
References 
Authors
4
7
Name
Order
Citations
PageRank
Kensaku Mori11125160.28
Daisuke Deguchi237762.03
Jun-ichi Hasegawa322161.17
Y Suenaga4737187.41
Jun-ichiro Toriwaki5578136.04
Hirotsugu Takabatake623529.60
Hiroshi Natori722028.49