Image tiger tally authentication scheme based on correspondence ghost imaging with exponential weighted operation

In this paper, we propose a correspondence ghost imaging method based on exponential weighted operation to expand the effective data range, and design an "image tiger tally" authentication scheme based on its imaging characteristics. Aiming at the problem that the previous correspondence ghost imaging uses fewer effective data, this method adopts the exponential weighted calculation of different base numbers to expand the fluctuation of the measured intensity, thus enlarging the effective data range and improving the quality of the reconstructed image. Respecting that the relevant information of the original image cannot be obtained from the reconstructed positive or negative images respectively, and only by combining the two images can the original information be recovered, this paper also constructs one "Image tiger tally" authentication system to realize the matching and verifying function of authority information. Numerical simulation and experimental results show that the proposed method has good effectiveness and security.