D
Donald L. Snyder
Researcher at Washington University in St. Louis
Publications - 88
Citations - 4617
Donald L. Snyder is an academic researcher from Washington University in St. Louis. The author has contributed to research in topics: Iterative reconstruction & Tomography. The author has an hindex of 30, co-authored 88 publications receiving 4478 citations.
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Noise and Edge Artifacts in Maximum-Likelihood Reconstructions for Emission Tomography
TL;DR: This paper develops a mathematical approach for suppressing both the noise and edge artifacts by modifying the maximum-likelihood approach to include constraints which the estimate must satisfy.
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Iterative deblurring for CT metal artifact reduction
TL;DR: In experiments with synthetic noise-free and additive noisy projection data of dental phantoms, it is found that both simultaneous iterative algorithms produce superior image quality as compared to filtered backprojection after linearly fitting projection gaps.
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Image recovery from data acquired with a charge-coupled-device camera
TL;DR: In this article, a model for data acquired with the use of a charge-coupled-device camera is given and then used for developing a new iterative method for restoring intensities of objects observed with such a camera.
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The Use of Sieves to Stabilize Images Produced with the EM Algorithm for Emission Tomography
TL;DR: It is shown how Grenader's method of sieves can be used with the EM algorithm to remove the instability and thereby decrease the 'noise' artifact introduced into the images with little or no increase in computational complexity.
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Deblurring subject to nonnegativity constraints
TL;DR: It is shown that every function in the sequence is nonnegative and the sequence converges monotonically to a global minimum.