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Three-dimensional image registration for spiral CT angiography

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4 Author(s)
Yeung, M.M. ; Dept. of Electr. Eng., Princeton Univ., NJ, USA ; Boon-Lock Yeo ; Shih-Ping Liou ; Banihashemi, A.

This paper presents a 3D image registration approach to 3D CT angiography (CTA). We extend the interest operator from 2D to 3D in order to extract 3D feature points and develop a 3D image flow algorithm to find matches of feature points between the mask and the contrast data sets. A robust 3D motion estimation algorithm is also developed which handles outliers up to 50% of all computed image flow vectors. The subtracted volume after motion correction is rendered on the display. The proposed algorithm has been successfully applied to a clinical CTA data set and the result is very promising

Published in:

Computer Vision and Pattern Recognition, 1994. Proceedings CVPR '94., 1994 IEEE Computer Society Conference on

Date of Conference:

21-23 Jun 1994