Results 1 to 10 of about 70,174 (264)
Separating reflection components based on chromaticity and noise analysis [PDF]
IEEE Transactions on Pattern Analysis and Machine Intelligence, 2004 Many algorithms in computer vision assume diffuse only reflections and deem specular reflections to be outliers. However, in the real world, the presence of specular reflections is inevitable since there are many dielectric inhomogeneous objects which have both diffuse and specular reflections.
Robby Tan, Katsushi Ikeuchi
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Noise reduction with reflection supervirtual interferometry [PDF]
Geophysics, 2020 ABSTRACT To image deeper portions of the earth, geophysicists must record reflection data with much greater source-receiver offsets. The problem with these data is that the signal-to-noise ratio (S/N) significantly diminishes with greater offset.
Gérard Schuster, Zhaolun Liu, Kai Lu
exaly +3 more sources
Unexpected links reflect the noise in networks [PDF]
Biology Direct, 2016 Gene covariation networks are commonly used to study biological processes. The inference of gene covariation networks from observational data can be challenging, especially considering the large number of players involved and the small number of biological replicates available for analysis.
Yambartsev, Anatoly +6 more
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Review of progress in passive seismic reflection exploration
地球与行星物理论评, 2023 Seismic exploration is a key method for the study of underground structures. Active seismic surveys can acquire high signal-to-noise ratio reflection data; however, the operation of active seismic surveys is complicated, and the exploration cost is high.
Xiaomin Ruan +6 more
doaj +1 more source
Maximum Likelihood Estimation of Seismic Impulse Response [PDF]
Modeling, Identification and Control, 1985 A seismic trace is assumed to consist of a known signal pulse convolved with a reflection coefficient series plus a moving average noise process (colored noise).
B. Ursin, O. Holberg
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Low-Frequency Expansion Approach for Seismic Data Based on Compressed Sensing in Low SNR
Applied Sciences, 2021 Low-frequency information can reflect the basic trend of a formation, enhance the accuracy of velocity analysis and improve the imaging accuracy of deep structures in seismic exploration.
Miaomiao Sun +4 more
doaj +1 more source
On the effects of rough ground and atmospheric absorption on aircraft noise
Noise Mapping, 2022 The noise received from an aircraft is modified by atmospheric attenuation and reflections from the ground. The interference of direct and reflected waves is simplest for a flat ground, whereas multiple reflections can occur for rough ground or ...
Campos Luiz Manuel Braga da Costa +2 more
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IEEE Access, 2022 In the field of speaker verification (SV), the development of noise-robust systems is a challenge for their deployment in real-world environments. Noise variability compensation is a common strategy for increasing the robustness to noise variations.
Sunghyun Yoon
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Denoising Method Based on Salient Region Recognition for the Spatiotemporal Event Stream
Sensors, 2023 Event cameras are the emerging bio-mimetic sensors with microsecond-level responsiveness in recent years, also known as dynamic vision sensors. Due to the inherent sensitivity of event camera hardware to light sources and interference from various ...
Sichao Tang +5 more
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Observation of Andreev Reflection Enhanced Shot Noise [PDF]
Physical Review Letters, 1997 We have experimentally investigated the quasiparticle shot noise in NbN/MgO/NbN superconductor - insulator - superconductor tunnel junctions. The observed shot noise is significantly larger than theoretically expected. We attribute this to the occurrence of multiple Andreev reflection processes in pinholes present in the MgO barrier.
Dieleman, P +4 more
openaire +3 more sources