  This paper presents an application of digital Fourier holography for
selective imaging of scatterers with different sizes in turbid media such as
biological tissues. A combination of Fourier holography and high-resolution
digital recording, digital Fourier microscopy (DFM) permits crucial flexibility
in applying filtering to highlight scatterers of interest in the tissue. The
high-resolution digital hologram is a result of the collation of Fourier
holographic frames to form a large-size composite hologram. It is expected that
DFM has an improved signal-to-noise ratio as compared to conventional direct
digital imaging, e.g. phase microscopy, as applied to imaging of small-size
objects. The demonstration of the Fourier filtering capacity of DFM using a
biological phantom represents the main focus of this paper.
