Simulation of artifacts in CT using MATLAB
How is Simulation of artifacts in CT is done utilizing MATLAB?
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Supposing that one of detectors (at l = l0) of a CT scanner is malfunction, which forever outputs a value of 0, i.e. g(l0, θ) = 0. The malfunctioned detector locates below the object however not in the center of the detector array as illustrated in the figure. The parallel ray geometry is supposed.(1) If the projections are obtained with this CT scanner, display the sinogram for the object employed in Q1. (2) Apply the inverse Radon transform to projections to re-construct the object. Display the re-constructed image.(3) Discuss what types of artifacts are examined in the reconstructed image and what a technician must do to avoid such artifacts?(4) In the inverse Radon transform (that is, ‘iradon’), use a distinct filter (that is, the default filter is Ram-Lak) and dispaly the reconstructed image. Discuss how and why the re-constructed image is enhanced.
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Written (7 points): pp. 303-304: 1, 5, 6, 7 pp. 363-364: 3, 4, 6. pp.303-304: 1. In what ways are the initialization, repetition test, and update steps alike for a sentinel-controlled loop and an endfile-controlled loop? How are they different? 5. Rewrite the program
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Assignment 1: Algorithms Rules: See the Assignment Rules file on the class Moodle site. 1 Reading Algorithms (20 points) Input: A nonempty string of characters S1S2 . . . Sn, and a positive integer n giving the number of characters in the string. Output: See t
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Structured programming: It is a style of programming generally related with languages like FORTRAN, C, Pascal and so forth. Employing structured programming methods, a problem is frequently resolved employing a divide and conquer approach like stepwis
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