Digital Image Formation From Electronically Detected Holograms

With the advent of the so-called "offset-reference" technique (Refs. 1,2,3) for recording holograms, many of the previous limita-tions of Gabor's wavefront-reconstruction process (Refs. 4,5,6) have been alleviated. It is natural, then, to consider the possible benefits offered by holography in various ap-plications where "direct" or "conventional" image formation has customarily been used.