  For imaging of static object by the means of sequential repeated independent
measurements, a theoretical modeling of the behavior of signal-to-noise ratio
(SNR) with varying number of measurement is developed, based on the information
capacity of optical imaging systems. Experimental veritification of imaging
using pseudo-thermal light source is implemented, for both the direct average
of multiple measurements, and the image reconstructed by second order
fluctuation correlation (SFC) which is closely related to ghost imaging.
Successful curve fitting of data measured under different conditions verifies
the model.
