Research On The Effect Of Detector Vibration On The Quality Of Ghost Imaging

Quantum correlation imaging,or ghost imaging,is a special non-direct imaging method that uses the second-order or even higher-order correlation properties of the light field to reconstruct the image.The most significant characteristic of correlated imaging is non-locality,that is,the light field is divided into two paths(the object light and the reference light),the object light is through the object and received by the bucket detector without spa-tial resolution,and the reference light is directly received by the reference detector,By the correlation calculations between the intensity of the two light fields,one can reconstruct the image.Unlike traditional imaging,the optical path of the thermal ghosting imaging does not require any imaging lenses,and owns the ability to penetrate clouds and resist turbulence disturbances.Because of these characteristics,correlated imaging is more suitable for harsh external imaging environments in certain areas.Therefore,the application of correlated imaging is very promising.For example,military,detection,medical.This article mainly studies the influence of the vibration of the object detector on the imaging quality of the correlated imaging system.At the same time,it also analyzes the effect of the compressive sensing technology on the imaging quality of the vibration correlated imaging system.The specific research content and innovations of the paper are as follows:First of all,we discussed the effect of the vibration amplitude of the object detector on the quality of ghost image.For the vibration amplitude,we use the stepper method,which drives the drive object to oscillate by a certain constant velocity and amplitude.The related theories based on the thermal-light correlated imaging,and the mathematical expression of the vibration of the object detector is deduced.According to this expression,the effect of the vibration from the object detector on the lensless imaging system can be described.The result shows that,the vibration from the object detector has no effect on the imaging quality of the lensless imaging system.Here,the theoretical analysis results were verified by the corresponding experiments.Our the theoretical analysis is consistent with the experimental results,i.e.,the object detector vibration has no effect on lensless ghost imaging.Secondly,we analyzed the effect from the vibration speed of the object detector.Since the derived mathematical expression of imaging system does not include the item about the vibration velocity,the vibration speed will not affect the imaging quality of the lensless ghost imaging system.This theoretical analysis was also verified by the corresponding experiments.Finally,the effect of compressive sensing on the imaging quality of correlated imaging with vibrating detector is studied.We use compressed sensing technology instead of tradi-tional reconstruction algorithms during of implementing ghost imaging.The experimental results show that compression-sensing ghost imaging can improve imaging quality on the basis of traditional reconstruction algorithms of correlated imaging with vibrating detector.