无需训练数据,用深度先验模型同时去噪和解卷积,提升荧光显微图像质量。
A Zero-Shot Deep Image Prior Framework for Denoising and Deconvolution in Fluorescence Microscopy

- 分步处理:先去噪后解卷积,利用自编码正则化与小波背景校正
- 在BioSR数据集上信噪比和分辨率显著提升,多数结构定量分析更准确
- 适合无配对数据的生物成像研究者,为逆问题提供物理引导的DIP新思路
荧光显微图像受噪声和衍射模糊影响,损害结构保真度并限制定量分析。监督式深度学习虽有优异修复性能,但需大规模成对数据,实际难以获取。为此,我们提出SDIP,一种零样本深度图像先验(DIP)框架,无需外部训练数据即可顺序完成去噪与解卷积。基于aSeqDIP的模块通过序列自编码正则化抑制噪声并保留精细结构;解卷积阶段,先进行小波基背景校正,再由提出的RLG-DIP模块执行低伪影解卷积。RLG-DIP以Richardson-Lucy解卷积结果作为物理一致的先验引导,将成像模型与DIP隐式先验结合,稳定病态解卷积过程。在BioSR数据集上对多种细胞结构的实验表明,SDIP提升了信噪比与分辨率,视觉质量更优,多数结构的定量性能得到改善。该框架也为其他逆问题设计物理引导的DIP方法提供了有益启示。
原文摘要 · Abstract (English)
Fluorescence microscopy images are degraded by noise and diffraction-induced blur, which compromise structural fidelity and limit quantitative analysis. Supervised deep learning methods achieve impressive restoration performance but require large-scale paired datasets that are difficult to obtain in practice. To address this issue, we propose SDIP, a zero-shot deep image prior (DIP) framework that sequentially performs denoising and deconvolution without external training data. An aSeqDIP-based module first suppresses noise while preserving fine structures through sequential autoencoding regularization. In the deconvolution stage, a wavelet-based background correction step is incorporated before the proposed RLG-DIP module performs artifact-reduced deconvolution. RLG-DIP uses the Richardson-Lucy deconvolution result as a physically consistent guidance prior, integrating the imaging model with the implicit prior of DIP to stabilize the ill-posed deconvolution process. Experiments on the BioSR dataset across multiple cellular structures demonstrate that SDIP improves both signal-to-noise ratio and resolution, achieving superior visual quality and improved quantitative performance on most evaluated structures. The proposed framework may also provide useful insights for designing physically guided DIP methods for other inverse problems.
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