Research Of Non-Imaging Object Authentication Based On Correlation Imaging

In the 1980 s,Correlation imaging was first introduced as a new imaging method.It is also called ghost imaging and a new imaging technique based on quantum theory.Owing to its strong anti-jamming ability and high resolution,correlation imaging has received widespread attention and rapid development.In recent years,correlation imaging has made great progress.The focus of correlation imaging research has been moving from basic theoretical research to practical application the direction of development.In the correlation imaging applications,the object authentication is one of the important contents of the correlation imaging research.Based on the basic theory of correlation imaging and the special mechanism,this paper studies the non-imaging object recognition of correlation imaging,and on the basis of this,combines the visual saliency.The innovative achievements in this paper include the following aspects:1.In the research of non-imaging object authentication based on correlation imaging.Combining the characteristics of associated imaging system and the characteristics of perceptual hashing algorithm,a perceptual hash algorithm based on Fourier transform is proposed.Then we combined Fourier ghost imaging to design a scheme to achieve non-imaging object authentication.A projector is used to modulate the light field and a specific experimental scheme is designed to test two-dimensional and threedimensional objects.Single-pixel non-imaging object authentication based on correlation imaging is realized.Through the analysis of the experimental results,under the Nyquist sampling rate of less than 1%,the non-imaging object authentication is realized,which greatly simplifies the process of object authentication and reduces the number of measurements of object authentication.2.In the part of non-imaging visual saliency detection based on correlation imaging.The basic concept and development history of visual saliency is introduced,and then a visual saliency method based on Fourier transform is introduced.Then,we proposed a scheme of visual saliency object detection with non-imaging based on correlation imaging.This scheme can accurately locate the object with non-imaging.By simulating the actual experimental process,we conducted simulation.This scheme can solve some real object detection problems in real life and provides a new idea for object authentication under complex background.3.In the research of non-imaging object authentication under visual saliency.Combining with the previously mentioned perceptual hashing algorithm and visual saliency algorithm,we propose a non-imaging object authentication scheme under visual saliency based on association imaging.We simulate the actual experimental process and analyze the simulation results.This method solves the problem of object authentication in complex or large background and has good application prospects.