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Reconstruction of Vessel Axis Based on the Matching of iterative Projection Algorithm and Analysis of Corresponding
Wei Hong1, Xuanqin Mou, Ying Yang
1Institute of Image Processing, School of Electronics and Information Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, P. R. China.
Abstract:
This paper proposes a novel method of Reconstruction of Vessel Axis on the matching of iterative projection algorithm and analyzing of corresponding points. The 3-D space is divided into several cubes. The cubes are projected in the actual projection directions separately. If a cube-projection includes vessel axis points, it is believed that the cube includes 3-D vessel. Then we divide the cube into several smaller cubes and repeat above process until the needed precision is reached. An approximate 3-D model of vessel axis is constituted according to projections of the cubs. The corresponding relationships of vessel axis between different direction projections are analyzed according to the approximate 3-D axis model. Then we can constitute the accurate continuous 3-D vessel axis by interpolation method. We use an actual DSA sequence as the experimental data and the result is satisfactory.
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