SNR of the coded aperture imaging system

作者：Jianwei Wang, Yan Zhao · 发表于：Optical Review · 年份：2021 · DOI：10.1007/s10043-020-00639-z · 被引用次数：6 · 研究领域：Advanced Optical Sensing Technologies、Optical measurement and interference techniques、Optical Systems and Laser Technology

Abstract In this paper, the expression for the SNR has been developed through the imaging model. It is concluded that the image SNR decreases with the increase of the number of light-emitting points of the target under the same hardware conditions and experimental parameters. Using uniform bright squares of different sizes as the target, the SNR of the reconstructed image is calculated. Simulation and prototype experiments have proved the correctness of the conclusion. Based on this conclusion, a method of segmented area imaging is proposed to improve the reconstructed image quality. The quality of all the images using this method with Wiener inverse filtering, R-Lucy deconvolution, and ADMM is better than the image quality obtained by full-area imaging.