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Radiology, Vol 123, 763-766, Copyright © 1977 by Radiological Society of North America

ARTICLES

Effects of motion on the radiological image

SC Prasad, FM Edwards and WR Hendee

A method to study the loss of resolution of radiological images caused by patient motion is presented. Optical transfer functions (OTF) are computed for motion with uniform velocity and with simple harmonic oscillation. The line spread function (LSF) of a pattern of motion can be generated from the image of a long, narrow moving slit. Once the LSF is known the OTF of the motion can be obtained by Fourier transform.




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Copyright © 1977 by the Radiological Society of North America.