Digital holography device, reproduction method and three-dimensional image by digital holography

摘要

Digital holography device for expanding the measurement range by widening the field of view range (1A), are recorded in the pixels of the image sensor (6), parallel phase shift including a hologram information of two different phase amount shift of the reference beam imaging device for producing a hologram (6), to generate the primary interpolation complex amplitude having a main interpolation plurality of areas by performing primary interpolation on the second hologram and extracted first from the parallel phase shift hologram, the first and second complex amplitude generator for generating an auxiliary interpolated complex amplitude having a secondary interpolation plurality of regions by applying a secondary interpolation hologram (3), and extracting a sub interpolation region of the sub-interpolation complex amplitude main interpolation area of ​​the main interpolation complex amplitude and a spatial frequency distribution generating section for generating a spatial frequency distribution by, for reproducing a three-dimensional image of the object on the basis of the spatial frequency distribution and (4).