Volume 3,Issue 7
基于暗场稀疏先验的QDPC 相位重建与缺陷检测
定量差分相衬（Quantitative Differential Phase Contrast, QDPC）成像作为一种非干涉定量相位恢复技术，在无标记生物样本成像中具有重要应用。然而，传统QDPC 重建算法未充分考虑成像系统的内在特性，导致重建质量易受噪声和背景波动影响。近年来，研究者提出利用暗场稀疏先验（Dark-field Sparse Prior, DSP）改进QDPC 相位重建，通过L0范数优化实现高保真度相位恢复。本文系统阐述了暗场图像与QDPC 相位重建的基本原理，分析了DSP 方法的核心思想与数学实现，并探讨了其在缺陷检测领域的应用潜力。
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