This paper describes a method whereby a three dimensional position inside a human body can be measured using a simple X-ray stereo image pair. Because the geometry of X-ray imaging is similar to that of ordinary photography, a standard stereo vision technique can be used. However, one problem is that the X-ray source position is unknown and should be computed from the X-ray image. In addition, a reference coordinate on which the measurement is based needs to be determined. The proposed method solves these two problems using a cubic wire frame called the reference object. Although three dimensional positioning for a human body is possible by Computer Tomography (CT), it requires expensive equipment. In contrast, the proposed method only requires ordinary X-ray photography equipment, which is inexpensive and widely available even in developing countries.
Three Dimensional Position Measurement for Maxillofacial Surgery by Stereo X-Ray Images
Asian Conference on Computer Vision ; 2007 ; Tokyo, Japan November 18, 2007 - November 22, 2007
2007-01-01
9 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Target Position , Maxillofacial Surgery , Reference Object , Imaging Geometry , Aviation Security Computer Science , Image Processing and Computer Vision , Computer Imaging, Vision, Pattern Recognition and Graphics , Pattern Recognition , Artificial Intelligence , Biometrics , Algorithm Analysis and Problem Complexity
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