Active contours for heart motion-compensated reconstruction in computed tomography
2002 14th International Conference on Digital Signal Processing Proceedings. DSP 2002 (Cat. No.02TH8628) - Tập 2 - Trang 1129-1132 vol.2
Tóm tắt
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.
Từ khóa
#Active contours #Heart #Computed tomography #Image reconstruction #Motion compensation #Motion estimation #Electrocardiography #Deformable models #Interpolation #Imaging phantomsTài liệu tham khảo
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