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Generalized Quantitative Evaluation in Broadband Diffractive Imaging
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AI
DOI：10.1109/TIM.2026.3655894.png)
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Abstract
En 中文
Broadband coherent diffractive imaging (BCDI) enables phase-retrieved imaging with ultrashort wavelength sources and has gained increasing attention for its efficient use of wideband illumination. However, spectral broadening introduces multiscatter aliasing and temporal decoherence, degrading phase retrieval performance and limiting the effectiveness of existing evaluation functions. Here, we propose a diffraction-wavefront evaluation (DWE) strategy that combines Fourier- and feature-domain information to robustly quantify BCDI reconstruction quality. DWE demonstrates strong generalization across both Fraunhofer and Fresnel regimes. This novel dual-domain evaluation framework, for the first time, offers a quantitative benchmark for algorithmic improvement and a foundation for further advances in broadband computational imaging.
Keywords:
Diffractive imaging
evolution determination
phase retrieval
quantitative evaluation
spatiotemporal decoherence
Journal
IF:
5.9
Papers:
1.9W
Citations:
5.8W