Title :
Maximum entropy image restoration in nuclear medicine
Author :
Oliveira, V.A. ; Nightingale, J.M.
Author_Institution :
Southampton Univ., UK
Abstract :
The problem of image restoration from noisy measurements as encountered in nuclear medicine is considered. The measurements are represented by a spatial noncausal interaction model prior to maximum entropy restoration. A simultaneous autoregressive model is utilized to describe these correlations. Regarding the constraint equations, a model is introduced. This is based on the Poisson statistics of the emissions. Results for actual gamma camera data are presented which include pelvic imaging and heart cycle imaging from gated studies
Keywords :
entropy; picture processing; radioisotope scanning and imaging; Poisson statistics; autoregressive model; constraint equations; correlations; gamma camera data; heart cycle imaging; image restoration; maximum entropy image restoration; noisy measurements; nuclear medicine; pelvic imaging; spatial noncausal interaction model;
Conference_Titel :
Image Processing and its Applications, 1989., Third International Conference on
Conference_Location :
Warwick
