Fig. 1. Schematic of speckle generation.散斑产生示意图

Fig. 2. Schematic of phase retrieval algorithm.相位恢复算法框图

Fig. 3. Simulations of imaging process: (a) Object; (b) point diffusion function; (c) speckle pattern; (d) AC of point diffusion function; (e) AC of object; (f) AC of speckle pattern; (g) square root of power spectrum; (h) result of reconstruction.成像过程的数值模拟　(a) 物体; (b) 点扩散函数; (c) 散斑图; (d) 点扩散函数AC; (e) 物体AC; (f) 散斑AC; (g) 能量谱开根; (h) 重建结果

Fig. 4. Retrieval results in different interation times: (a)−(c) Retrieval results of HIO&ER algorithm when (a) , (b) , (c) ; (d)−(f) Retrieval results of PP algorithm when (d) , (e) , (f) . 不同迭代次数下的恢复效果　(a)—(c) HIO&ER算法的恢复结果, 其中, (a) , (b) , (c) ; (d)—(f) PP算法的恢复结果, 其中, (d) , (e) , (f)

Fig. 5. Optical setups used for imaging through the scattering media: (a) Optical path in experiment; (b) generation of pseudothermal light source; (c) generation of speckle pattern.通过散射介质成像的光学装置　(a)实验光路图; (b)赝热光的产生; (c)散斑的产生

Fig. 6. Experimental results for different numbers: (a)−(e) Retrieval process of number “1”, namely, (a) object, (b) sCOMS image, (c) autocorrelaction of speckle pattern, (d) square root of power spectrum, (e) result of reconstruction; (f)−(t) retrieval processes of number “3”, “5” and “6”.不同数字的实验结果　(a)—(e)数字“1”的恢复过程, 其中, (a)物体, (b) sCOMS成像, (c)散斑AC, (d)能量谱开根, (e)重建结果; (f)—(t)数字“3”, “5”, “6”的恢复过程

Fig. 7. Effects of different distance between objective and diffuser: (a)−(f) AC results of speckle pattern in different distance; (g)−(l) retrieval results in different distance.不同物镜和散射介质间距对成像效果的影响　(a)—(f)不同间距下的散斑AC结果; (g)—(l)不同间距下的恢复结果

Table 1. Interation times of algorithm in different conditions.