Title :
Solving inverse problems by Bayesian iterative inversion of a forward model with ground truth incorporation
Author :
Davis, Daniel T. ; Hwang, Jenq-Neng
Author_Institution :
Dept. of Electr. Eng., Washington Univ., Seattle, WA, USA
Abstract :
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
Keywords :
Bayes methods; inverse problems; neural nets; remote sensing; Bayesian iterative inversion; Bayesian methodology; forward model; ground truth; informative constraints; inverse problems; iterative inversion; neural networks; remote sensing; Bayesian methods; Geophysical measurements; Inverse problems; Iterative methods; Microwave measurements; Moisture measurement; Neural networks; Passive microwave remote sensing; Position measurement; Remote sensing;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 1997. ICASSP-97., 1997 IEEE International Conference on
Conference_Location :
Munich
Print_ISBN :
0-8186-7919-0
DOI :
10.1109/ICASSP.1997.595478