Improved Model for Restoring Turbulence Degraded Image

A new degradation model includling the influence of outer-and inner-scale of turbulence is presented to restore atmospheric turbulence degradation images. This new model is derived from the wave structure function and refractive index profiles considering turbulence internal and external scale and thin lens imaging degradation function. Compared with the model derived from Kolmogorov spectrum, the new model introduces more complete transcendent constraints and is more similar to the physical characteristics of atmospheric turbulence. Aiming at the turbulent degraded images comprising aircraft targets, constrained least squares filtering method is used to test the recovery power of the new degradation model. Simulation results show the effectiveness of the new model.