Abstract

The analytically continued Fourier transform of a twodimensional image vanishes to zero on a twodimensional surface embedded in a fourdimensional space. This surface uniquely characterizes the image and is known as a zero sheet. Since the manipulation of a function in fourdimensional space is cumbersome, we calculate the projections of zero sheets, known as zero tracks. If the blurred image concerned contains a point spread function with twodimensional symmetry, the zero tracks calculated rowvice and columnvice contain some similarities, which support retrieval of both true image, and point spread function. This presented novel scheme does the separation effectively in the absence of contamination.