Super-resolution imaging via sparsity constraint and sparse speckle illumination<xref rid="cpb_27_7_074202fn1" ref-type="fn">*</xref> <fn id="cpb_27_7_074202fn1"> <label>*</label> <p>Project supported by the National Natural Science Foundation of China (Grant No. 61571427).</p> </fn>

Super-resolution imaging via sparsity constraint and sparse speckle illumination* *

Project supported by the National Natural Science Foundation of China (Grant No. 61571427).

Wang Pengwei^{1, 2}, Li Wei^{2, 3}, Wang Chenglong^{1, 2}, Bo Zunwang¹, Gong Wenlin^{1, †}

(color online) (a) The schematic of a typical optical imaging system. (b) Single-frame super-resolution reconstruction via uniform illumination. (c) Procedure of super-resolution imaging via sparsity constraint and spare speckle illumination. CCD: charge-coupled device; PI: projection illumination; DI: diffraction-limited; SR: sparse reconstruction; S¹–S^N are the random sparse speckle patterns; and Σ denotes the summation.