Computational Ghost Imaging in Scattering Media Using Simulation-Based Deep Learning

• Main Authors: Ziqi Gao, Xuemin Cheng, Ke Chen, Anqi Wang, Yao Hu, Shaohui Zhang, Qun Hao
• Format: Article
• Language: English
• Published: IEEE 2020-01-01
• Series: IEEE Photonics Journal
• Subjects: Computational ghost imaging; scattering path; neural network; adaptive imaging
• Online Access: https://ieeexplore.ieee.org/document/9200747/

Deep learning has been proven to provide solutions for computational ghost imaging (CGI). However, in current CGI techniques, the quality of the reconstructed image is adversely affected by the position and intensity of the scattering medium. In this study, the feasibility of using a deep neural network (DNN) by using the hybrid simulated data to facilitate CGI through a scattering medium is demonstrated, particularly when the scattering medium is in front of an object. Under a specific order of the measurement matrix, the CGI measurement equation is introduced along with a disturbance factor of the scattering effect to generate simulation data, thereby representing imaging situations with the scattering medium at different positions. The selection of disturbance parameters is determined by the correlation between the simulation signal and the experimental signal. Then an end-to-end DNN is trained using experimentally obtained light intensity signals, and it shows that the quality of the reconstruction results is improved when there is a scattering medium in the emission path. The reported technique effectively solves the problem of CGI reconstruction under different scattering paths with a common DNN, and may have broad applications in fast adaptive CGI for new and uncertain scenarios.