Speckle images are produced by the reflected and scattered light beams from rough surface through free-space to observing plane when laser illuminates the object surface.

The effect of the optical system aberrations on the restoration imagery is investigated when the speckle imaging technique is used to process the images of the astronomic telescope.

The test and analyses for the camera showed that the limit magnitude will be 12 m when it is used to do the observation of astronomical speckle imaging; and some real observation data of speckle images and image reconstructed results are given.

The speckle imaging quality of space extended objects is limited by photon density in short exposure images.

Research of automatic measuring instrument for infrared guidance head imaging facula;

Study on the dependence of the contrast of image speckles produced by strong scattering-object on random surface and imaging system;

In this paper, the influence of the incidence angle on the free space Fraunhofer speckle and the image speckle is analysed in detail.

Two-dimensional coordinate system between exit pupil plane and image plane is set up,detailed expressions of transverse autocorrelation function of image speckle light intensity and normalized autocorrelation function ase achieve.