  The structured illumination adopted widely in super-resolution microscopy
imaging works for the ghost imaging scheme also. Here, we studied the ghost
imaging scheme with sinusoidal-structured speckle illumination, whose spatial
resolution can surpass the Rayleigh resolution limit by a factor of 2. In
addition, even if the bucket intensity signal originated from the diffraction
of the object plane with a certain distance, the improvement of spatial
resolution is still effective. Our research shows that the structural
illumination method, an independent super-resolution technology, is expected to
be grafted with a variety of super-resolution ghost imaging schemes to further
improve the resolution of imaging systems, such as the pseudo-inverse ghost
imaging.
