双边滤波在探地雷达数据去噪处理中的应用

doi:10.11720/wtyht.2021.1223

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Abstract

During the acquisition of ground penetrating radar (GPR) data, noise would inevitably be mixed in by the influence of external factors, which seriously interferes with the identification and interpretation of effective echo. Therefore, the authors used the bilateral filtering algorithm to remove noise from ground penetrating radar data. By adding White Gaussian Noise to the forward record of ground penetrating radar to simulate the measured ground penetrating radar record, the synthetic record containing noise was filtered by bilateral filter. The results show that the bilateral filtering algorithm can remove most of the White Gaussian Noise, highlight the effective echo information and increase the peak signal-to-noise ratio (PSNR) from 15.845 1 to 22.147 7. Furthermore, the bilateral filter was used to filter the measured records. The filtered results show that the noise removal effect is better, which indicates that the bilateral filter could be effectively applied to the denoise of ground penetrating radar data.

Key words： bilateral filter ground penetrating radar Gaussian white noise peak signal-to-noise ratio

Received: 27 April 2020 Published: 29 April 2021

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	Si-Wei ZHANG
	Rong-Xin WU
	Zi-Ao HAN
	Hai-Bo WU

Cite this article:

Si-Wei ZHANG,Rong-Xin WU,Zi-Ao HAN, et al. The application of bilateral filtering to denoise processing of ground penetrating radar data[J]. Geophysical and Geochemical Exploration, 2021, 45(2): 496-501.

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https://www.wutanyuhuatan.com/EN/10.11720/wtyht.2021.1223 OR https://www.wutanyuhuatan.com/EN/Y2021/V45/I2/496

The forward record of ground penetrating radar

Synthetic records of ground penetrating radar with different signal-to-noise ratio
a—a synthetic record with a signal-to-noise ratio of 2; b—a synthetic record with a signal-to-noise ratio of 10

The result of bilateral filtering of the GPR in figure 2a
a—bilateral filtered profile;b—the residual profile

The result of bilateral filtering of the GPR in figure 2b
a—bilateral filtered profile;b—the residual profile

PSNR values of White Gaussian Noise images with different signal-to-noise ratio

Bilateral filtering effect of ground penetrating radar records measured by PVC tube
a—the original profile;b—the bilateral filtered profile;c—the residual profile

Bilateral filtering effect of pipeline ground penetrating radar record
a—the original profile;b—the bilateral filtered profile;c—the residual profile

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