Adaptive non-uniformity correction based on multi model particle filter

Honglie Xu; Chunhua Yang; Qilian Cui

doi:10.1117/12.3007582

18 December 2023 Adaptive non-uniformity correction based on multi model particle filter

Honglie Xu, Chunhua Yang, Qilian Cui

Proceedings Volume 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics; 129630W (2023) https://doi.org/10.1117/12.3007582
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China

Abstract

In the process of scene based non-uniformity correction, the scene is often changeable, and the corresponding detector operating range of different temperature scenes is different, and their nonuniformity parameters are also different, so when the scene changes, the non-uniformity parameters will also drift, and it is easy to introduce serious ghosts in the correction results, which greatly reduces the Rate of convergence of the algorithm, This poses serious problems for real-time non-uniformity correction algorithms. At the same time, the scene is very flexible, and a single model cannot describe the scene well. Therefore, on the basis of treating the dynamic change process of the scene as a Markov process, this article proposes an adaptive non-uniformity correction algorithm based on Multi Model Particle Filter (PF-NUC). By introducing a tracking framework of particle filter, a nonlinear and non Gaussian parameter estimation model is established. Through experimental simulation verification, after the algorithm proposed in this article, almost no ghosts or residual non-uniformity can be seen. Through visual evaluation, the PF-NUC method has the best ability to remove fixed pattern noise.

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Honglie Xu, Chunhua Yang, and Qilian Cui "Adaptive non-uniformity correction based on multi model particle filter", Proc. SPIE 12963, AOPC 2023: Optical Sensing, Imaging, and Display Technology and Applications; and Biomedical Optics, 129630W (18 December 2023); https://doi.org/10.1117/12.3007582

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KEYWORDS

Nonuniformity corrections

Particle filters

Tunable filters

Particles

Nonlinear filtering

Signal filtering

Electronic filtering

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