用贝叶斯方法提升物理信息神经网络,实现红外图像逆问题的不确定性量化。
Bayesian Physics-Informed Neural Networks for Inverse Problems (BPINN-IP): Application in Infrared Image Processing
- 将物理规律与数据噪声建模融入贝叶斯框架,统一处理先验与观测不确定性。
- 在红外图像去模糊和超分辨率任务中,实测数据验证了其精度与鲁棒性。
- 适合需要可信度评估的工业视觉任务,如无损检测、热成像增强。
逆问题广泛存在于科学与工程领域,目标是从间接且含噪的观测中推断隐藏参数或物理场。传统方法如变分正则化和贝叶斯推断虽有坚实的理论基础,但在高维情形或复杂物理前向模型下常面临计算瓶颈。物理信息神经网络(PINNs)通过将物理定律嵌入神经网络训练过程,成为求解逆问题的新兴范式。本文提出贝叶斯物理信息神经网络(BPINN-IP),通过贝叶斯先验建模训练数据生成与测量误差,基于后验分布进行推断。该框架统一融合物理约束、先验知识与数据驱动推理,并支持不确定性量化。标准PINN可视为其最大后验估计(MAP)特例。我们在红外图像处理中的逆问题(包括去卷积与超分辨率)上验证了该方法,在模拟与真实工业数据上均取得良好效果。
原文摘要 · Abstract (English)
Inverse problems arise across scientific and engineering domains, where the goal is to infer hidden parameters or physical fields from indirect and noisy observations. Classical approaches, such as variational regularization and Bayesian inference, provide well established theoretical foundations for handling ill posedness. However, these methods often become computationally restrictive in high dimensional settings or when the forward model is governed by complex physics. Physics Informed Neural Networks (PINNs) have recently emerged as a promising framework for solving inverse problems by embedding physical laws directly into the training process of neural networks. In this paper, we introduce a new perspective on the Bayesian Physics Informed Neural Network (BPINN) framework, extending classical PINNs by explicitly incorporating training data generation, modeling and measurement uncertainties through Bayesian prior modeling and doing inference with the posterior laws. Also, as we focus on the inverse problems, we call this method BPINN-IP, and we show that the standard PINN formulation naturally appears as its special case corresponding to the Maximum A Posteriori (MAP) estimate. This unified formulation allows simultaneous exploitation of physical constraints, prior knowledge, and data-driven inference, while enabling uncertainty quantification through posterior distributions. To demonstrate the effectiveness of the proposed framework, we consider inverse problems arising in infrared image processing, including deconvolution and super-resolution, and present results on both simulated and real industrial data.
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