Extended focused imaging for digital holograms of macroscopic three-dimensional objects.
When a digital hologram is reconstructed, only points located at the reconstruction distance are in focus. We have developed a novel technique for creating an in-focus image of the macroscopic objects encoded in a digital hologram. This extended focused image is created by combining numerical reconstructions with depth information extracted by using our depth-from-focus algorithm. To our knowledge, this is the first technique that creates extended focused images of digital holograms encoding macroscopic objects. We present results for digital holograms containing low- and high-contrast macroscopic objects.
McElhinney
Conor P
CP
Department of Computer Science, National University of Ireland, Maynooth, County Kildare, Ireland. conormce@cs.nuim.ie
Hennelly
Bryan M
BM
Naughton
Thomas J
TJ