IMAGE QUALITY CRITERIA FOR AN ADAPTIVE IMAGING-SYSTEM BASED ON STATISTICAL-ANALYSIS OF THE SPECKLE FIELD

We introduce image quality criteria for organizing feedback control in adaptive imaging systems. These image quality criteria are dependent on the Fourier spectrum of the image and can be obtained optically wit h a coherent optical system. Digital processing of the image plane int ensity distribution is not required. We present experimental results, along with corresponding numerical simulations, that demonstrate the p otential effectiveness of these criteria for adaptive correction of ph ase-distorted extended-source images. (C) 1996 Optical Society of Amer ica