Design Of Snapshot Computational Spectral Imaging System Based On Microlens Array

In recent years,as a new type of spectral imaging technology,Computational Spectral Imaging technology can achieve snapshot-based imaging of spatial and spectral information of targets,which makes up for the shortcomings of traditional spectral imaging techniques that require multiple exposures.Based on the theory of computational imaging,this thesis designs a snapshot-based computational spectral imaging system based on micro-lens arrays.A single exposure can obtain the target's high spatial resolution and high-spectral resolution images.The main work of this article is as follows:1.ZEMAX was used to design the main optical path model of the snapshot-based computational spectral imaging system based on the microlens array,and the imaging performance of the optical path model was analyzed and evaluated.According to the analysis results,the final optimized optical model has good imaging performance and high imaging quality.2.The reconstruction algorithm of the imaging system is proposed.The algorithm can realize the spatial super-resolution of the spectral image,and the reconstruction algorithm is simulated using MATLAB.The paper found that the super-resolution algorithm can get a good reconstruction effect.