论文标题
基于参数射击照明和直接相优化的远场衍射计算成像
Far-field diffraction computational imaging based on parameter-robust illumination and direct phase optimization
论文作者
论文摘要
连贯的衍射成像(CDI)是一种有希望的成像技术,揭示了衍射测量的大多数信息。理想的CDI应从单发远场衍射中重建复合物值对象,而没有任何有关目标的先验信息。为了实现理想的CDI,我们提出了一类参数射击照明模式。这里还提出了直接相位优化算法,以提高强噪声中相位检索的性能。实验结果证明了我们方案在对复杂值靶标的实用噪声测量中的效率。
Coherent diffraction imaging (CDI) is a promising imaging technique revealing most of the information from diffraction measurements. An ideal CDI should reconstruct complex-valued object from a single-shot far-field diffraction without any priori information about the target. To realize the ideal CDI, we propose a class of parameter-robust illumination pattern. A direct phase optimizing algorithm is also raised here to improve the performance of phase retrieval in strong noise. Experimental result demonstrates the efficiency of our scheme in practical noisy measurement for complex-valued target.