Abstract
A digital holography is a technique that obtains the reconstruction image by recording of the holograms with the image sensor such as CCD electrically, and processing the holograms with the computer. A high-speed measurement became possible because it was able to do all processing digitally compared with the holography that used a past photographic plate. However, the improvement of the spatial resolution becomes a problem by the problem of the low resolutions of the image sensor compared with the photographic plate. In this report, it has aimed to attempt the improvement of the spatial resolution by using the phase and amplitude information on the wave field recorded as digital data.
