Fig. 1. Diagram of thermal ghost imaging system

Fig. 2. Simulation result of real-space ghost imaging (GI) reconstruction by intensity correlation algorithm. (a) Original image;(b) reconstructed image

Fig. 3. Two-dimensional and three-dimensional images of standard error of intensity correlation algorithm in case of noiseless. (a) Theoretical estimation; (b) Bootstrap estimation; (c) standard error of theoretical and Bootstrap estimation results of selected section through peak of small hole

Fig. 4. Standard error and confidence interval estimated by TwIST reconstruction. (a) Original image, reconstructed image, and standard error obtained by nonparametric Bootstrap; (b) uncertainty diagram of confidence interval of 99% in selected line of data, absolute error diagram, and half-width ε diagram of confidence interval of 99%

Fig. 5. Bias and absolute error diagrams of TwIST reconstruction. (a) Actual error and absolute error diagrams of original sample reconstruction; (b) bias and root mean square error diagrams estimated by Bootstrap method