In an embodiment, a method includes receiving a number of optical sections
of different parts of an embryo over time along a Z-axis through
differential interference contrast microscopy. The method also includes
outlining a perimeter of the number of parts of the embryo within the
number of optical sections. Additionally, the method includes generating
a three-dimensional faceted image of the number of parts based on the
outlined perimeter. The method includes reconstructing, separately, a
four-dimensional image of a growth of the different parts of the embryo
over time based on the three-dimensional facet image of the number of
parts.