  A new focal-plane three-dimensional (3D) imaging method based on temporal
ghost imaging is proposed and demonstrated. By exploiting the advantages of
temporal ghost imaging, this method enables slow integrating cameras have an
ability of 3D surface imaging in the framework of sequential flood-illumination
and focal-plane detection. The depth information of 3D objects is easily lost
when imaging with traditional cameras, but it can be reconstructed with
high-resolution by temporal correlation between received signals and reference
signals. Combining with a two-dimensional (2D) projection image obtained by one
single shot, a 3D image of the object can be achieved. The feasibility and
performance of this focal-plane 3D imaging method have been verified through
theoretical analysis and numerical experiments in this paper.
