Image and video denoising for distributed optical fibre sensors

M. Soto, Jaime A. Ramírez, L. Thévenaz
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引用次数: 7

Abstract

A technique based on a multi-dimensional signal processing approach is here described for performance enhancement of distributed optical fibre sensors. In particular, the main features of linear and nonlinear image denoising techniques are described for signal-to-noise ratio enhancement in Brillouin optical time-domain analysers. Experimental results demonstrate the possibility to enhance the performance of distributed Brillouin sensors by more than 13 dB using a nonlinear image denoising approach, while more than 20 dB enhancement can be obtained with video denoising.
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分布式光纤传感器的图像和视频去噪
本文描述了一种基于多维信号处理方法的分布式光纤传感器性能增强技术。特别地,描述了线性和非线性图像去噪技术的主要特点,以提高布里渊光时域分析仪的信噪比。实验结果表明,采用非线性图像去噪方法可以使分布式布里渊传感器的性能提高13 dB以上,而采用视频去噪方法可以使分布式布里渊传感器的性能提高20 dB以上。
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