Image-quality criteria in the digital holography of particles

This paper discusses quantitative criteria for the quality of the reconstructed holographic images of particles-the boundary contrast and the boundary falloff. The results of experimental studies of how these criteria depend on the additive noise level in a reconstructed image are presented, as well as how they depend on the number of quantization levels of a CCD array when the hologram is being recorded. It is shown that the criteria can be used to refine the position of the plane of best focusing of an image during reconstruction. (C) 2012 Optical Society of America.