Active contours for heart motion-compensated reconstruction in computed tomography

被引：0
|
作者：
Verdú, R [1 ]
Morales, J [1 ]
Berenguer, R [1 ]
Weruaga, L [1 ]
机构：
[1] Univ Politecn Cartagena, E-30202 Cartagena, Spain
来源：
DSP 2002: 14TH INTERNATIONAL CONFERENCE ON DIGITAL SIGNAL PROCESSING PROCEEDINGS, VOLS 1 AND 2 | 2002年
关键词：
D O I：
暂无
中图分类号：
TP31 [计算机软件];
学科分类号：
081202 ; 0835 ;
摘要：
This paper shows a novel method related to motion compensated image reconstruction in computed tomography. The proposed method is based on deformable models. Computing the movement directly from the original non-compensated reconstruction avoiding artifacts selectively in a semiautomatic way is the first step in proposed motion compensation. The motion estimation provided by active contour models fitting and interpolation are used to reduce the image artifacts when it is applied during reconstruction. Preliminary results shows that the method produces images with a low-level artifacts for phantoms with synthetic motion.
引用
收藏
页码：1129 / 1132
页数：4
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