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Use of Fourier domain filtering and dynamic programming in finding a titanium coil implant in high voltage x-ray images.

Administrative Information

Organisation

Aalborg University, Denmark

Presentation Information

Full / Half Time Slot: Half Time Slot (25 min)

Contact / Speaker Name

Henning Nielsen

Presentation Title

Use of Fourier domain filtering and dynamic programming in finding a titanium coil implant in high voltage x-ray images.

Participant Requirements

No preknowledge is required except the use of ImageJ.

Biography of Speaker

I (Henning Nielsen) is 63 years old and have been working with image processing for more than 20 years. I have been using ImageJ as my favorite tool for image processing during the last 3 years.

Abstract

This paper deals with the problem of finding precise position and orientation of a titanium coil implant in humans. Analysis of high voltage Xrays stereo images are used to determine the true 3D position. High voltage images inherently presents with poor contrast. Various image processing techniques, such as template matching and grey scale morphology operations were tested. A final solution based on filtering in Fourier domain, greyscale morphology and a new shortest path algorithm is implemented as a set of ImageJ macros. The method has been tested on 100 images. The method correctly determined the position of the titanium wire within less than 1 mm of ground truth determined from manual analysis of the images.

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