Visibility enhancement in two-dimensional lensless ghost imaging with true thermal light

Chen Xi-Hao^{1, †}, Yan Ling¹, Wu Wei¹, Meng Shao-Ying^{1, ‡}, Wu Ling-An², Sun Zhi-Bin³, Wang Chao³, Zhai Guang-Jie³

(color online) Reconstruction of the image of the double-slit. (a) 2D ghost image. (b) Average of 18 horizontal data sections from panel (a).