复杂动态场景全变分正则化GS相位恢复增强鬼成像方法

By employing the fully variational regularized GS phase retrieval method, combined with Walsh ghost imaging and angular spectral diffraction theory, the noise sensitivity and robustness issues of phase retrieval in complex scenes of ghost imaging technology are solved, achieving high-fidelity complex amplitude imaging, which is suitable for quantitative imaging in complex dynamic scenes.

CN122199338BActive Publication Date: 2026-07-17JILIN UNIVERSITY

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
JILIN UNIVERSITY
Filing Date
2026-05-14
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing ghost imaging techniques struggle to accurately acquire high-fidelity complex amplitude information in complex scenarios. In particular, phase retrieval methods are sensitive to noise and lack sufficient system complexity and robustness, limiting their quantitative application.

Method used

The fully variational regularized GS phase retrieval method is adopted, which combines two-dimensional Walsh ghost imaging reconstruction and angular spectrum diffraction theory. Through Fourier transform and gradient operation, noise is suppressed and the phase retrieval accuracy is improved, so as to realize complex amplitude imaging.

Benefits of technology

It effectively suppresses noise and phase artifacts, improves phase recovery accuracy and stability, and achieves high-fidelity complex amplitude imaging. It is suitable for quantitative imaging scenarios such as observation of transparent biological samples and three-dimensional morphology measurement, and has good robustness and computational efficiency.

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Abstract

本发明适用于图像处理技术领域,提供了复杂动态场景全变分正则化GS相位恢复增强鬼成像方法,首先,基于二阶相关的鬼成像重构,利用随机散斑照射目标物体,桶探测器记录总光强,通过计算二阶相关函数得到重构图像的幅值信息;然后,基于全变分正则化GS相位恢复,以幅值作为空间域幅度约束,在频域与空间域之间交替投影,并在每次空间域更新后加入全变分正则化去噪,迭代获得相位分布;最后,基于角谱衍射理论的复振幅重建,利用幅值与相位构建复振幅,通过角谱传播算子得到输出图像。本方法可有效抑制噪声和伪影,提高收敛速度与稳定性,使鬼成像系统同时获得高质量幅值与相位信息,适用于低采样率、强噪声的复杂动态场景定量成像。
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