Revision: 60879
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at November 15, 2012 07:00 by kritisen
Initial Code
I = phantom(512); theta = -90: 1: 90; P = radon(I, theta); Sino = P'; Sino2 = truncSino(Sino, 0.3, 'ramp'); Sino3 = truncSino(Sino, 0.3); m = 0; n = 150; figure, subplot(3, 1, 1), imshow(Sino, [m, n]); title('Original sinogram', 'FontSize', 15); ylabel('View#', 'FontSize', 12); xlabel('Detector Bin#', 'FontSize', 12); subplot(3, 1, 2), imshow(Sino2, [m, n]); title('Truncated sinogram with extrapolation by ramp function', 'FontSize', 15); ylabel('View#', 'FontSize', 12); xlabel('Detector Bin#', 'FontSize', 12); subplot(3, 1, 3), imshow(Sino3, [m, n]); title('Truncated sinogram', 'FontSize', 15) xlabel('Detector Bin#'); ylabel('View#', 'FontSize', 12); xlabel('Detector Bin#', 'FontSize', 12);
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Truncate Sinogram across Central Detector Bin
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Truncate Sinogram across Central Detector Bin
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MatLab