Sub-Rayleigh imaging via undersampling scanning based on sparsity constraints
Xue Chang-Bin1, 2, Yao Xu-Ri2, †, Li Long-Zhen2, Liu Xue-Feng2, Yu Wen-Kai1, Guo Xiao-Yong2, ‡, Zhai Guang-Jie2, Zhao Qing1
       

(a) Sub-Rayleigh image reconstructed with 512 measurements. (b) Sub-Rayleigh image reconstructed with 256 measurements. (c) Sub-Rayleigh image reconstructed with 64 measurements. (d) The positions of the 64 pixels scanned.