Jiansheng Yang,Hengyong Yu,Ming Jiang et al.
Jiansheng Yang et al.
Recently, an accurate solution to the interior problem was proposed based on the total variation (TV) minimization, assuming that a region of interest (ROI) is piecewise constant. In this paper, we generalize that assumption to allow a piec...
Why do commercial CT scanners still employ traditional, filtered back-projection for image reconstruction? [0.03%]
为什么商用CT扫描仪仍使用传统的滤波反投影法进行图像重建？
Xiaochuan Pan,Emil Y Sidky,Michael Vannier
Xiaochuan Pan
Despite major advances in x-ray sources, detector arrays, gantry mechanical design and especially computer performance, one component of computed tomography (CT) scanners has remained virtually constant for the past 25 years-the reconstruct...
Deblurring of Class-Averaged Images in Single-Particle Electron Microscopy [0.03%]
单粒子电子显微镜中的类平均图像去卷积算法研究
Wooram Park,Dean R Madden,Daniel N Rockmore et al.
Wooram Park et al.
This paper proposes a method for deblurring of class-averaged images in single-particle electron microscopy (EM). Since EM images of biological samples are very noisy, the images which are nominally identical projection images are often gro...
G T Herman,R Davidi
G T Herman
Image reconstruction from projections suffers from an inherent difficulty: there are different images that have identical projections in any finite number of directions. However, by identifying the type of image that is likely to occur in a...
Jiangsheng You,Gengsheng L Zeng,Zhengrong Liang
Jiangsheng You
A filtered backprojection (FBP) reconstruction algorithm for attenuated fan-beam projections has been derived based on Novikov's inversion formula. The derivation uses a common transformation between parallel-beam and fan-beam coordinates. ...