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Solving inverse problems by Bayesian iterative inversion of a forward model with ground truth incorporation

机译:通过贝叶斯迭代反演前向模型并结合地面真值来解决反问题

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Inverse problems have been often considered ill-posed, i.e., the statement of the problem does not thoroughly constrain the solution space. In this paper we take advantage of this lack of information by adding informative constraints to the problem solution using Bayesian methodology. Remote sensing problems afford opportunities for inclusion of ground truth information, prior probabilities, noise distributions, and other informative constraints within a Bayesian probabilistic framework. We apply Bayesian methods to a synthetic remote sensing problem, showing that the performance is superior to a previously published method of iterative inversion of neural networks. In addition, we show that the addition of ground truth information, naturally included through Bayesian modeling, provides a significant performance improvement.
机译:反问题通常被认为是不适定的,即问题的陈述并没有完全限制解决方案的空间。在本文中,我们通过使用贝叶斯方法向问题解决方案添加信息约束来利用这种信息的不足。遥感问题为在贝叶斯概率框架内包含地面真实信息,先验概率,噪声分布和其他信息约束条件提供了机会。我们将贝叶斯方法应用于合成遥感问题,表明该性能优于以前发布的神经网络迭代反演方法。此外,我们表明,通过贝叶斯建模自然包含的地面实况信息的添加可显着改善性能。

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