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Attenuation of rand...
Attenuation of random noise in GPR data by image processing
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- Oskooi, Behrooz (författare)
- Luleå tekniska universitet,Geovetenskap och miljöteknik,Univ Tehran, Inst Geophys, Tehran, Iran
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- Parnow, S. (författare)
- Univ Tehran, Inst Geophys, Tehran, Iran
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- Smirnov, Maxim (författare)
- Luleå tekniska universitet,Geovetenskap och miljöteknik
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- Varfinezhad, R. (författare)
- Univ Tehran, Inst Geophys, Tehran, Iran
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- Yari, M. (författare)
- Univ Tehran, Inst Geophys, Tehran, Iran
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(creator_code:org_t)
- 2018-11-07
- 2018
- Engelska.
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Ingår i: Arabian Journal of Geosciences. - Heidelberg : Springer. - 1866-7511 .- 1866-7538. ; 11:21
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Random noise in ground penetrating radar (GPR) data affects the signal-to-noise ratio, blurs the details, and complicates reconnaissance of the useful information. Many methods with different advantages and disadvantages have been proposed to eliminate or weaken the random noise. We have reviewed basic principles of various signal processing techniques including the curvelet transform (CT), non-local mean (NLM), median, and mean filters to remove the random noise and compared their performances using synthetic and actual GPR data. The performances of the four filters were analyzed on synthetic GPR data both in time and frequency domains. On noisy synthetic data, results indicate that the CT filter performs better than NLM, mean, and median filters at attenuating random noise and improving S/N of the GPR data. On the real data, the performance of only the NLM and CT filters was investigated. Comparing the results clearly shows the CT filter robustness for the random noise attenuation and simultaneously its signal preservation
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Geofysik (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Geophysics (hsv//eng)
Nyckelord
- Curvelet transform
- GPR
- Mean filter
- Median filter
- Non-local mean
- Random noise
- Prospekteringsgeofysik
- Exploration Geophysics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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