Improvement of Image Quality in Multiplane Tomographic Scintillation Camera Restoration of Circular Motion Blur

Considerable distortion is observed in longitudinal tomography images obtained from the rotating, inclined hole collimator scintillation camera. The device utilizes the relative circular motion between an object and the imaging system. Therefore, the image of activity at the focal plane is superimposed upon blurred images from off-focal planes. In the present paper, in order to restore the image degradation, the authors present an approximate method of inverse computation and verify its effectiveness by computer simulation. This method is a variation of Fourier approach and may be basically adapted to the inverse computation in general cases where noisy data are encountered, though restoration precision is somewhat reduced.