A nuclear camera (10) includes a plurality of detector heads (12) which
have collimators (14) for fixing the trajectory along which radiation is
receivable. A rotating gantry (22) rotates the detector heads around the
subject collecting less than 360.degree. of data, e.g., 204.degree. of
data. A zero-filling processor (50) generates zero-filled projection
views such that the actually collected projection views and the
zero-filled projection views span 360.degree.. A smoothing processor (56)
smooths an interface between the zero-filled and actually collected
projection views. The zero-filled and smoothed views are Fourier
transformed (60) into frequency space, filtered with a stationary
deconvolution function (62), and Fourier transformed (64) back into real
space. The resolution recovered projection data sets in real space are
reconstructed by a reconstruction processor (68) into a three-dimensional
image representation for storage in an image memory (70).