用薛定谔方程启发的模型预测三维+时间的动态变化,更稳定且可解释。
Schrödinger-Inspired Time-Evolution for 4D Deformation Forecasting
- 基于薛定谔方程设计可微分的时间演化算子,嵌入深度卷积网络中。
- 在合成数据上实现长时间序列的准确预测,误差积累显著减少。
- 适合医学影像等需保持解剖一致性的变形预测任务。
时空预测复杂三维现象(4D:3D+时间)在医学影像、流体与材料动力学及地球物理等领域至关重要。不同于无约束的神经预测模型,本文提出一种薛定谔方程启发的物理引导神经架构,在深层卷积框架中显式引入时间演化算子以实现4D预测。从观测的体素序列中,模型学习体素级的振幅、相位和势场,构成复值波函数 $ψ= A e^{iϕ}$,并使用可微、展开的薛定谔时间推进器向前演化。该物理引导范式具有多重优势:(i) 结构化演化算子带来时间稳定性,有效缓解长时预测中的漂移与误差累积;(ii) 可解释的潜在表示——相位编码运动传输,振幅捕获结构强度,学习到的势场控制时空相互作用;(iii) 与基于形变的生成自然兼容,对医学影像中保持解剖保真度至关重要。通过将物理先验直接融入学习过程,该方法结合了深度网络的表达能力与物理建模的鲁棒性和可解释性。我们在模拟真实形变与拓扑变化的合成基准上展示了对未来4D状态(包括体素强度与形变场)的准确稳定预测。据我们所知,这是首个集成薛定谔型演化算子的端到端4D神经预测框架,为可解释、稳定且解剖一致的时空预测提供了原则性路径。
原文摘要 · Abstract (English)
Spatiotemporal forecasting of complex three-dimensional phenomena (4D: 3D + time) is fundamental to applications in medical imaging, fluid and material dynamics, and geophysics. In contrast to unconstrained neural forecasting models, we propose a Schrödinger-inspired, physics-guided neural architecture that embeds an explicit time-evolution operator within a deep convolutional framework for 4D prediction. From observed volumetric sequences, the model learns voxelwise amplitude, phase, and potential fields that define a complex-valued wavefunction $ψ= A e^{iϕ}$, which is evolved forward in time using a differentiable, unrolled Schrödinger time stepper. This physics-guided formulation yields several key advantages: (i) temporal stability arising from the structured evolution operator, which mitigates drift and error accumulation in long-horizon forecasting; (ii) an interpretable latent representation, where phase encodes transport dynamics, amplitude captures structural intensity, and the learned potential governs spatiotemporal interactions; and (iii) natural compatibility with deformation-based synthesis, which is critical for preserving anatomical fidelity in medical imaging applications. By integrating physical priors directly into the learning process, the proposed approach combines the expressivity of deep networks with the robustness and interpretability of physics-based modeling. We demonstrate accurate and stable prediction of future 4D states, including volumetric intensities and deformation fields, on synthetic benchmarks that emulate realistic shape deformations and topological changes. To our knowledge, this is the first end-to-end 4D neural forecasting framework to incorporate a Schrödinger-type evolution operator, offering a principled pathway toward interpretable, stable, and anatomically consistent spatiotemporal prediction.
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