  Dynamic speckle method is an effective tool for estimation of speed of
processes. Speed distribution is encoded in a map built by statistical
pointwise processing of time-correlated speckle patterns. For industrial
inspection,the outdoor noisy measurement is required. The paper analyzes
efficiency of the dynamic speckle method in the presence of environmental noise
as phase fluctuations due to lack of vibration isolation and shot noise due to
ambient light. Usage of normalized estimates for the case of non-uniform laser
illumination is studied. Feasibility of the outdoor measurement has been proven
by numerical simulationsof noisy image capture and real experiments with test
objects. Good agreement has been demonstrated both in simulation and experiment
between the ground truth map and the maps extracted from noisy data.
