  In this thesis the data analysis designed by author for the "Pi of the Sky"
experiment is presented. The data analysis consists of data reduction and
specific algorithms for identification of short time scale astrophysical
processes. The algorithms have been tested and their efficiency has been
determined and described. The "Pi of the Sky" prototype is collecting data
since June 2004 and algorithms could be intensively studied and improved during
over 700 nights. A few events of confirmed astrophysical origin and above 100
events in 10s time scale of unknown nature have been discovered. During the
data collection period 3 Gamma Ray Bursts (out of 231) occurred in the field of
view of the telescope, but no optical counterpart has been found. The upper
limits for brightness of the optical counterpart have been determined. The
continuous monitoring of the sky and own trigger for optical flashes allowed to
determine limits on the number of GRBs without corresponding gamma-ray
detection. This allowed determining limits on the ratio of emission collimation
in optical and gamma bands, which is R >= 4.4. The perspectives of the full "Pi
of the Sky" system has been studied and number of positive detections has been
estimated on the level of ~ 2.5 events per year.
